./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh --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 c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d --- 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-2329fc7 [2022-12-14 14:21:35,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:21:35,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:21:35,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:21:35,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:21:35,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:21:35,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:21:35,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:21:35,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:21:35,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:21:35,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:21:35,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:21:35,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:21:35,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:21:35,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:21:35,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:21:35,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:21:35,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:21:36,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:21:36,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:21:36,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:21:36,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:21:36,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:21:36,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:21:36,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:21:36,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:21:36,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:21:36,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:21:36,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:21:36,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:21:36,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:21:36,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:21:36,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:21:36,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:21:36,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:21:36,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:21:36,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:21:36,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:21:36,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:21:36,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:21:36,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:21:36,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:21:36,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:21:36,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:21:36,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:21:36,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:21:36,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:21:36,041 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:21:36,041 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:21:36,041 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:21:36,041 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:21:36,042 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:21:36,042 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:21:36,042 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:21:36,042 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:21:36,042 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:21:36,043 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:21:36,043 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:21:36,043 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:21:36,043 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:21:36,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:21:36,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:21:36,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:21:36,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:21:36,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:21:36,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:21:36,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:21:36,045 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:21:36,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:21:36,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:21:36,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:21:36,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:21:36,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:21:36,047 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:21:36,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:21:36,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:21:36,047 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:21:36,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:21:36,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:21:36,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:21:36,048 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_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d [2022-12-14 14:21:36,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:21:36,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:21:36,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:21:36,262 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:21:36,262 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:21:36,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2022-12-14 14:21:38,886 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:21:39,239 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:21:39,240 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2022-12-14 14:21:39,263 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/data/2739921d3/98dd9a5d69ad4345b9a4a1f877c95599/FLAG4e06a87dc [2022-12-14 14:21:39,273 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/data/2739921d3/98dd9a5d69ad4345b9a4a1f877c95599 [2022-12-14 14:21:39,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:21:39,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:21:39,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:21:39,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:21:39,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:21:39,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:21:39" (1/1) ... [2022-12-14 14:21:39,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69680044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:39, skipping insertion in model container [2022-12-14 14:21:39,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:21:39" (1/1) ... [2022-12-14 14:21:39,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:21:39,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:21:39,946 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 14:21:39,954 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 14:21:39,962 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:21:40,016 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:21:40,019 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 14:21:40,113 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 14:21:40,114 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 14:21:40,123 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:21:40,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,157 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 14:21:40,163 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 14:21:40,200 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 14:21:40,315 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,355 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,365 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,365 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,379 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,491 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,494 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,496 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,496 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:21:40,497 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,498 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,502 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,507 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,512 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,515 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,516 WARN L623 FunctionHandler]: Unknown extern function alloc_irdadev [2022-12-14 14:21:40,518 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:21:40,520 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 14:21:40,521 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,522 WARN L623 FunctionHandler]: Unknown extern function irda_init_max_qos_capabilies [2022-12-14 14:21:40,523 WARN L623 FunctionHandler]: Unknown extern function irda_qos_bits_to_value [2022-12-14 14:21:40,526 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:40,527 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,528 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 14:21:40,530 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,531 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,532 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 14:21:40,534 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:21:40,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,539 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:40,539 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,541 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,542 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,543 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,543 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,544 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,545 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,546 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,546 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,548 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,549 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,550 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,551 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:40,552 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,553 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,560 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 14:21:40,562 WARN L623 FunctionHandler]: Unknown extern function async_wrap_skb [2022-12-14 14:21:40,563 WARN L623 FunctionHandler]: Unknown extern function irda_setup_dma [2022-12-14 14:21:40,564 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 14:21:40,566 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:40,567 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 14:21:40,570 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 14:21:40,572 WARN L623 FunctionHandler]: Unknown extern function irda_setup_dma [2022-12-14 14:21:40,573 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,579 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,582 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,584 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,587 WARN L623 FunctionHandler]: Unknown extern function irda_setup_dma [2022-12-14 14:21:40,589 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:21:40,591 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:21:40,592 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,592 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,595 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 14:21:40,595 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:21:40,596 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,597 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:21:40,598 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,600 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:21:40,601 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:21:40,605 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:21:40,605 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,607 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:21:40,607 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,610 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,613 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,616 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,620 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,622 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,625 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,627 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,629 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:40,629 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,629 WARN L623 FunctionHandler]: Unknown extern function request_dma [2022-12-14 14:21:40,630 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:40,630 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,630 WARN L623 FunctionHandler]: Unknown extern function request_dma [2022-12-14 14:21:40,631 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:40,631 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,631 WARN L623 FunctionHandler]: Unknown extern function free_dma [2022-12-14 14:21:40,632 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:21:40,632 WARN L623 FunctionHandler]: Unknown extern function irlap_open [2022-12-14 14:21:40,633 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,634 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,635 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,635 WARN L623 FunctionHandler]: Unknown extern function irlap_close [2022-12-14 14:21:40,636 WARN L623 FunctionHandler]: Unknown extern function free_dma [2022-12-14 14:21:40,637 WARN L623 FunctionHandler]: Unknown extern function free_dma [2022-12-14 14:21:40,638 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,638 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:40,640 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 14:21:40,640 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 14:21:40,641 WARN L623 FunctionHandler]: Unknown extern function irda_device_set_media_busy [2022-12-14 14:21:40,767 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:21:40,770 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:21:40,770 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:21:40,777 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:21:40,778 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 14:21:40,783 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 14:21:40,783 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 14:21:40,784 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 14:21:40,784 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:21:40,785 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 14:21:40,785 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:21:40,785 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:21:40,786 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:21:40,787 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:21:40,787 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:21:40,787 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:21:40,788 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:21:40,833 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:21:40,840 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,892 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,896 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,899 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,903 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,917 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,922 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,925 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,930 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,934 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,948 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,952 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,956 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,959 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,963 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,977 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,980 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,984 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,988 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:40,992 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,006 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,010 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,013 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,017 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,021 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,034 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,037 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,041 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,044 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,047 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,060 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,063 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,066 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,070 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,073 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,085 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,089 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,092 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,095 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,099 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,111 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,112 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,112 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,115 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,119 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,134 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,138 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,141 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,144 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,148 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,160 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,164 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,167 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,170 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,173 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,185 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,188 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,191 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,193 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,196 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,207 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,210 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,213 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,216 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,219 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,230 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,233 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,236 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,240 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,243 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,258 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,267 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,267 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,268 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,268 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,268 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,268 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,268 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,269 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,269 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,269 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,269 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,269 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,270 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,270 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,292 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_422009e8-8eee-46f9-becd-5e4154a6e2ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2022-12-14 14:21:41,296 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_422009e8-8eee-46f9-becd-5e4154a6e2ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2022-12-14 14:21:41,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:21:41,336 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:21:41,431 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 14:21:41,431 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 14:21:41,431 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:21:41,435 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:21:41,435 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 14:21:41,438 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 14:21:41,438 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 14:21:41,439 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:21:41,440 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,440 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 14:21:41,442 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 14:21:41,444 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 14:21:41,453 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,459 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,460 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,461 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,462 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,468 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,469 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,470 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,471 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:21:41,471 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,471 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,473 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,476 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,477 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,478 WARN L623 FunctionHandler]: Unknown extern function alloc_irdadev [2022-12-14 14:21:41,478 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:21:41,479 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 14:21:41,480 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,480 WARN L623 FunctionHandler]: Unknown extern function irda_init_max_qos_capabilies [2022-12-14 14:21:41,481 WARN L623 FunctionHandler]: Unknown extern function irda_qos_bits_to_value [2022-12-14 14:21:41,482 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:41,482 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,482 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 14:21:41,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,484 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 14:21:41,485 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:21:41,485 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,487 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:41,487 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,487 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,488 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,488 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,488 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,489 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,489 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,490 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,490 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,491 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,492 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,492 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,493 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:41,493 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,494 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,497 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,498 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 14:21:41,498 WARN L623 FunctionHandler]: Unknown extern function async_wrap_skb [2022-12-14 14:21:41,499 WARN L623 FunctionHandler]: Unknown extern function irda_setup_dma [2022-12-14 14:21:41,499 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 14:21:41,500 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:21:41,500 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 14:21:41,501 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 14:21:41,502 WARN L623 FunctionHandler]: Unknown extern function irda_setup_dma [2022-12-14 14:21:41,502 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,503 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,505 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,506 WARN L623 FunctionHandler]: Unknown extern function irda_setup_dma [2022-12-14 14:21:41,507 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:21:41,511 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:21:41,512 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,513 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,514 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 14:21:41,514 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:21:41,514 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,518 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:21:41,519 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,519 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:21:41,523 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:21:41,525 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:21:41,525 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,528 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:21:41,528 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,529 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,548 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,549 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,550 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,551 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,552 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,553 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,553 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,554 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,554 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,555 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:41,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,555 WARN L623 FunctionHandler]: Unknown extern function request_dma [2022-12-14 14:21:41,556 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:41,556 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,556 WARN L623 FunctionHandler]: Unknown extern function request_dma [2022-12-14 14:21:41,556 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 14:21:41,556 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,557 WARN L623 FunctionHandler]: Unknown extern function free_dma [2022-12-14 14:21:41,557 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:21:41,557 WARN L623 FunctionHandler]: Unknown extern function irlap_open [2022-12-14 14:21:41,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,558 WARN L623 FunctionHandler]: Unknown extern function irlap_close [2022-12-14 14:21:41,559 WARN L623 FunctionHandler]: Unknown extern function free_dma [2022-12-14 14:21:41,559 WARN L623 FunctionHandler]: Unknown extern function free_dma [2022-12-14 14:21:41,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:21:41,560 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 14:21:41,561 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 14:21:41,561 WARN L623 FunctionHandler]: Unknown extern function irda_device_set_media_busy [2022-12-14 14:21:41,564 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:21:41,565 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:21:41,565 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:21:41,569 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:21:41,570 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 14:21:41,575 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 14:21:41,576 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 14:21:41,576 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 14:21:41,576 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:21:41,576 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 14:21:41,577 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:21:41,577 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:21:41,577 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:21:41,577 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:21:41,578 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:21:41,578 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:21:41,578 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:21:41,580 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:21:41,580 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,583 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,583 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,583 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,584 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,584 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,584 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,585 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,585 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,585 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,586 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,586 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,586 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,586 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,586 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,587 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,587 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,587 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,588 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,588 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,588 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,589 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,589 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,589 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,589 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,590 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,590 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,590 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,590 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,590 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,591 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,591 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,591 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,592 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,592 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,592 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,592 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,593 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,593 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,593 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,594 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,594 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,594 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,594 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,594 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,595 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,595 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,595 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,596 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,596 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,596 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,597 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,597 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,597 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,597 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,598 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,598 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,598 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,598 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,598 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,599 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,599 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,599 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,600 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,600 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,600 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,600 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,601 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,601 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,601 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,602 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,602 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,602 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,602 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,602 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,602 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,602 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,602 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,602 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,603 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,603 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,603 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,603 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,603 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,603 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:21:41,604 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_422009e8-8eee-46f9-becd-5e4154a6e2ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2022-12-14 14:21:41,604 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_422009e8-8eee-46f9-becd-5e4154a6e2ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2022-12-14 14:21:41,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:21:41,663 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:21:41,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41 WrapperNode [2022-12-14 14:21:41,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:21:41,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:21:41,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:21:41,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:21:41,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,808 INFO L138 Inliner]: procedures = 388, calls = 2133, calls flagged for inlining = 154, calls inlined = 135, statements flattened = 4308 [2022-12-14 14:21:41,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:21:41,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:21:41,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:21:41,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:21:41,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,906 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:21:41,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:21:41,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:21:41,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:21:41,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (1/1) ... [2022-12-14 14:21:41,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:21:41,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:21:41,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:21:41,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:21:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-12-14 14:21:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-12-14 14:21:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 14:21:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 14:21:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2022-12-14 14:21:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2022-12-14 14:21:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2022-12-14 14:21:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2022-12-14 14:21:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 14:21:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 14:21:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 14:21:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 14:21:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-14 14:21:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-14 14:21:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2022-12-14 14:21:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2022-12-14 14:21:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2022-12-14 14:21:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2022-12-14 14:21:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2022-12-14 14:21:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2022-12-14 14:21:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-12-14 14:21:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-12-14 14:21:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 14:21:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 14:21:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2022-12-14 14:21:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2022-12-14 14:21:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2022-12-14 14:21:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2022-12-14 14:21:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-12-14 14:21:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-12-14 14:21:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 14:21:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 14:21:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:21:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2022-12-14 14:21:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2022-12-14 14:21:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2022-12-14 14:21:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2022-12-14 14:21:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-12-14 14:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-12-14 14:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2022-12-14 14:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2022-12-14 14:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 14:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 14:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2022-12-14 14:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2022-12-14 14:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2022-12-14 14:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2022-12-14 14:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 14:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-12-14 14:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-12-14 14:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-12-14 14:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-12-14 14:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2022-12-14 14:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2022-12-14 14:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 14:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 14:21:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 14:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2022-12-14 14:21:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2022-12-14 14:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 14:21:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 14:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2022-12-14 14:21:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2022-12-14 14:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 14:21:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 14:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 14:21:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 14:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 14:21:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 14:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2022-12-14 14:21:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2022-12-14 14:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2022-12-14 14:21:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2022-12-14 14:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2022-12-14 14:21:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2022-12-14 14:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2022-12-14 14:21:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2022-12-14 14:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 14:21:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 14:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2022-12-14 14:21:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2022-12-14 14:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:21:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 14:21:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 14:21:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 14:21:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 14:21:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:21:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:21:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:21:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 14:21:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 14:21:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2022-12-14 14:21:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2022-12-14 14:21:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-12-14 14:21:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-12-14 14:21:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-12-14 14:21:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-12-14 14:21:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 14:21:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 14:21:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 14:21:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 14:21:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2022-12-14 14:21:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2022-12-14 14:21:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2022-12-14 14:21:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2022-12-14 14:21:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 14:21:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 14:21:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 14:21:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 14:21:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2022-12-14 14:21:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2022-12-14 14:21:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:21:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:21:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2022-12-14 14:21:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2022-12-14 14:21:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 14:21:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 14:21:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 14:21:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 14:21:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2022-12-14 14:21:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2022-12-14 14:21:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-12-14 14:21:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-12-14 14:21:42,001 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2022-12-14 14:21:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2022-12-14 14:21:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2022-12-14 14:21:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2022-12-14 14:21:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 14:21:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 14:21:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2022-12-14 14:21:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2022-12-14 14:21:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2022-12-14 14:21:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2022-12-14 14:21:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 14:21:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 14:21:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:21:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:21:42,002 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2022-12-14 14:21:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2022-12-14 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 14:21:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-12-14 14:21:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-12-14 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 14:21:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-12-14 14:21:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-12-14 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 14:21:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-12-14 14:21:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-12-14 14:21:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 14:21:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2022-12-14 14:21:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2022-12-14 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-12-14 14:21:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-12-14 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-12-14 14:21:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-12-14 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 14:21:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 14:21:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-12-14 14:21:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-12-14 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:21:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-12-14 14:21:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-12-14 14:21:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2022-12-14 14:21:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2022-12-14 14:21:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-12-14 14:21:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-12-14 14:21:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 14:21:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 14:21:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-12-14 14:21:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-12-14 14:21:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2022-12-14 14:21:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2022-12-14 14:21:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2022-12-14 14:21:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2022-12-14 14:21:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 14:21:42,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 14:21:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2022-12-14 14:21:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2022-12-14 14:21:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2022-12-14 14:21:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2022-12-14 14:21:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2022-12-14 14:21:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2022-12-14 14:21:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-12-14 14:21:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-12-14 14:21:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:21:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-12-14 14:21:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-12-14 14:21:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 14:21:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 14:21:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-12-14 14:21:42,006 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-12-14 14:21:42,469 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:21:42,473 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:21:42,661 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 14:21:45,919 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 14:21:46,755 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:21:47,549 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:21:47,549 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:21:47,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:21:47 BoogieIcfgContainer [2022-12-14 14:21:47,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:21:47,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:21:47,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:21:47,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:21:47,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:21:39" (1/3) ... [2022-12-14 14:21:47,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7328503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:21:47, skipping insertion in model container [2022-12-14 14:21:47,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:21:41" (2/3) ... [2022-12-14 14:21:47,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7328503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:21:47, skipping insertion in model container [2022-12-14 14:21:47,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:21:47" (3/3) ... [2022-12-14 14:21:47,558 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2022-12-14 14:21:47,572 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:21:47,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:21:47,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:21:47,635 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;@79bf54e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:21:47,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:21:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) [2022-12-14 14:21:47,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-14 14:21:47,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:47,664 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:21:47,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:21:47,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:47,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1261039661, now seen corresponding path program 1 times [2022-12-14 14:21:47,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:47,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380633951] [2022-12-14 14:21:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:47,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-12-14 14:21:48,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:48,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380633951] [2022-12-14 14:21:48,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380633951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:48,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:48,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:21:48,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577977757] [2022-12-14 14:21:48,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:48,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:21:48,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:48,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:21:48,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:21:48,277 INFO L87 Difference]: Start difference. First operand has 1559 states, 807 states have (on average 1.241635687732342) internal successors, (1002), 831 states have internal predecessors, (1002), 660 states have call successors, (660), 92 states have call predecessors, (660), 91 states have return successors, (656), 644 states have call predecessors, (656), 656 states have call successors, (656) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 14:21:50,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:21:54,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:54,472 INFO L93 Difference]: Finished difference Result 4334 states and 6480 transitions. [2022-12-14 14:21:54,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:21:54,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 127 [2022-12-14 14:21:54,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:54,502 INFO L225 Difference]: With dead ends: 4334 [2022-12-14 14:21:54,502 INFO L226 Difference]: Without dead ends: 2729 [2022-12-14 14:21:54,514 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 [2022-12-14 14:21:54,516 INFO L413 NwaCegarLoop]: 2720 mSDtfsCounter, 1852 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 4818 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:54,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 4818 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-12-14 14:21:54,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-12-14 14:21:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2725. [2022-12-14 14:21:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 1416 states have (on average 1.2337570621468927) internal successors, (1747), 1462 states have internal predecessors, (1747), 1143 states have call successors, (1143), 166 states have call predecessors, (1143), 165 states have return successors, (1160), 1116 states have call predecessors, (1160), 1143 states have call successors, (1160) [2022-12-14 14:21:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 4050 transitions. [2022-12-14 14:21:54,728 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 4050 transitions. Word has length 127 [2022-12-14 14:21:54,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:54,728 INFO L495 AbstractCegarLoop]: Abstraction has 2725 states and 4050 transitions. [2022-12-14 14:21:54,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 14:21:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 4050 transitions. [2022-12-14 14:21:54,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-14 14:21:54,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:54,739 INFO L195 NwaCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:21:54,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:21:54,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:21:54,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:54,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1321055607, now seen corresponding path program 1 times [2022-12-14 14:21:54,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:54,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291427519] [2022-12-14 14:21:54,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:54,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-12-14 14:21:55,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:55,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291427519] [2022-12-14 14:21:55,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291427519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:55,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:21:55,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:21:55,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705178930] [2022-12-14 14:21:55,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:55,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:21:55,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:55,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:21:55,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:21:55,048 INFO L87 Difference]: Start difference. First operand 2725 states and 4050 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 14:21:57,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:21:58,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:00,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:02,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:02,882 INFO L93 Difference]: Finished difference Result 7256 states and 10798 transitions. [2022-12-14 14:22:02,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:22:02,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 181 [2022-12-14 14:22:02,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:02,908 INFO L225 Difference]: With dead ends: 7256 [2022-12-14 14:22:02,908 INFO L226 Difference]: Without dead ends: 4542 [2022-12-14 14:22:02,959 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 [2022-12-14 14:22:02,960 INFO L413 NwaCegarLoop]: 2567 mSDtfsCounter, 1571 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 4597 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:02,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 4597 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-12-14 14:22:02,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2022-12-14 14:22:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4538. [2022-12-14 14:22:03,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 2346 states have (on average 1.2310315430520034) internal successors, (2888), 2414 states have internal predecessors, (2888), 1913 states have call successors, (1913), 279 states have call predecessors, (1913), 278 states have return successors, (1930), 1876 states have call predecessors, (1930), 1913 states have call successors, (1930) [2022-12-14 14:22:03,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6731 transitions. [2022-12-14 14:22:03,201 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6731 transitions. Word has length 181 [2022-12-14 14:22:03,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:03,202 INFO L495 AbstractCegarLoop]: Abstraction has 4538 states and 6731 transitions. [2022-12-14 14:22:03,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 14:22:03,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6731 transitions. [2022-12-14 14:22:03,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-12-14 14:22:03,226 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:03,227 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:22:03,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:22:03,227 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:22:03,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:03,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1217685933, now seen corresponding path program 1 times [2022-12-14 14:22:03,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:03,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778963180] [2022-12-14 14:22:03,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:03,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:03,654 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-12-14 14:22:03,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:03,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778963180] [2022-12-14 14:22:03,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778963180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:22:03,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:22:03,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:22:03,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484700105] [2022-12-14 14:22:03,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:22:03,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:22:03,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:22:03,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:22:03,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:22:03,657 INFO L87 Difference]: Start difference. First operand 4538 states and 6731 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-14 14:22:05,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:06,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:09,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:11,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:11,379 INFO L93 Difference]: Finished difference Result 10882 states and 16159 transitions. [2022-12-14 14:22:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:22:11,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 224 [2022-12-14 14:22:11,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:11,427 INFO L225 Difference]: With dead ends: 10882 [2022-12-14 14:22:11,427 INFO L226 Difference]: Without dead ends: 6355 [2022-12-14 14:22:11,456 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 [2022-12-14 14:22:11,457 INFO L413 NwaCegarLoop]: 3507 mSDtfsCounter, 1581 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 5521 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:11,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 5521 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 14:22:11,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2022-12-14 14:22:11,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6351. [2022-12-14 14:22:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6351 states, 3275 states have (on average 1.2299236641221374) internal successors, (4028), 3365 states have internal predecessors, (4028), 2683 states have call successors, (2683), 393 states have call predecessors, (2683), 392 states have return successors, (2700), 2636 states have call predecessors, (2700), 2683 states have call successors, (2700) [2022-12-14 14:22:11,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6351 states to 6351 states and 9411 transitions. [2022-12-14 14:22:11,919 INFO L78 Accepts]: Start accepts. Automaton has 6351 states and 9411 transitions. Word has length 224 [2022-12-14 14:22:11,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:11,919 INFO L495 AbstractCegarLoop]: Abstraction has 6351 states and 9411 transitions. [2022-12-14 14:22:11,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-14 14:22:11,920 INFO L276 IsEmpty]: Start isEmpty. Operand 6351 states and 9411 transitions. [2022-12-14 14:22:11,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-12-14 14:22:11,933 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:11,933 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:22:11,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:22:11,933 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:22:11,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:11,934 INFO L85 PathProgramCache]: Analyzing trace with hash 538153008, now seen corresponding path program 1 times [2022-12-14 14:22:11,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:11,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688600658] [2022-12-14 14:22:11,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:11,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2022-12-14 14:22:12,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:12,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688600658] [2022-12-14 14:22:12,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688600658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:22:12,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:22:12,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:22:12,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927729458] [2022-12-14 14:22:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:22:12,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:22:12,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:22:12,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:22:12,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:22:12,561 INFO L87 Difference]: Start difference. First operand 6351 states and 9411 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 14:22:16,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:19,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:19,191 INFO L93 Difference]: Finished difference Result 14682 states and 21752 transitions. [2022-12-14 14:22:19,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:22:19,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 287 [2022-12-14 14:22:19,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:19,221 INFO L225 Difference]: With dead ends: 14682 [2022-12-14 14:22:19,221 INFO L226 Difference]: Without dead ends: 8342 [2022-12-14 14:22:19,237 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 [2022-12-14 14:22:19,238 INFO L413 NwaCegarLoop]: 3578 mSDtfsCounter, 2013 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:19,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 5305 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 14:22:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8342 states. [2022-12-14 14:22:19,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8342 to 8338. [2022-12-14 14:22:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8338 states, 4298 states have (on average 1.2291763610981852) internal successors, (5283), 4415 states have internal predecessors, (5283), 3514 states have call successors, (3514), 527 states have call predecessors, (3514), 525 states have return successors, (3531), 3453 states have call predecessors, (3531), 3514 states have call successors, (3531) [2022-12-14 14:22:19,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8338 states to 8338 states and 12328 transitions. [2022-12-14 14:22:19,621 INFO L78 Accepts]: Start accepts. Automaton has 8338 states and 12328 transitions. Word has length 287 [2022-12-14 14:22:19,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:19,622 INFO L495 AbstractCegarLoop]: Abstraction has 8338 states and 12328 transitions. [2022-12-14 14:22:19,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 14:22:19,622 INFO L276 IsEmpty]: Start isEmpty. Operand 8338 states and 12328 transitions. [2022-12-14 14:22:19,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-14 14:22:19,638 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:19,638 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:22:19,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:22:19,638 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:22:19,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1993685789, now seen corresponding path program 1 times [2022-12-14 14:22:19,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:19,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449814192] [2022-12-14 14:22:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:19,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-12-14 14:22:20,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:20,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449814192] [2022-12-14 14:22:20,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449814192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:22:20,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:22:20,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:22:20,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553888351] [2022-12-14 14:22:20,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:22:20,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:22:20,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:22:20,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:22:20,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:22:20,220 INFO L87 Difference]: Start difference. First operand 8338 states and 12328 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 14:22:21,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:26,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:26,165 INFO L93 Difference]: Finished difference Result 24619 states and 36411 transitions. [2022-12-14 14:22:26,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:22:26,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 314 [2022-12-14 14:22:26,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:26,238 INFO L225 Difference]: With dead ends: 24619 [2022-12-14 14:22:26,239 INFO L226 Difference]: Without dead ends: 16292 [2022-12-14 14:22:26,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:22:26,264 INFO L413 NwaCegarLoop]: 2640 mSDtfsCounter, 1992 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:26,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 4687 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 14:22:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16292 states. [2022-12-14 14:22:27,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16292 to 16290. [2022-12-14 14:22:27,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16290 states, 8398 states have (on average 1.2305310788282924) internal successors, (10334), 8621 states have internal predecessors, (10334), 6859 states have call successors, (6859), 1035 states have call predecessors, (6859), 1032 states have return successors, (6895), 6743 states have call predecessors, (6895), 6859 states have call successors, (6895) [2022-12-14 14:22:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16290 states to 16290 states and 24088 transitions. [2022-12-14 14:22:27,148 INFO L78 Accepts]: Start accepts. Automaton has 16290 states and 24088 transitions. Word has length 314 [2022-12-14 14:22:27,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:27,149 INFO L495 AbstractCegarLoop]: Abstraction has 16290 states and 24088 transitions. [2022-12-14 14:22:27,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 14:22:27,150 INFO L276 IsEmpty]: Start isEmpty. Operand 16290 states and 24088 transitions. [2022-12-14 14:22:27,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-12-14 14:22:27,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:27,173 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:22:27,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:22:27,173 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:22:27,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:27,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2082880561, now seen corresponding path program 1 times [2022-12-14 14:22:27,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:27,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724329812] [2022-12-14 14:22:27,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:27,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-12-14 14:22:28,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:28,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724329812] [2022-12-14 14:22:28,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724329812] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:22:28,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189846020] [2022-12-14 14:22:28,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:28,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:22:28,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:22:28,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:22:28,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:22:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:29,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 4486 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 14:22:29,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:22:43,894 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-12-14 14:22:43,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:22:43,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189846020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:22:43,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:22:43,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-12-14 14:22:43,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792399120] [2022-12-14 14:22:43,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:22:43,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:22:43,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:22:43,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:22:43,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:22:43,897 INFO L87 Difference]: Start difference. First operand 16290 states and 24088 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2022-12-14 14:22:46,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:51,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:54,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:56,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:22:57,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:03,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:03,524 INFO L93 Difference]: Finished difference Result 28635 states and 42369 transitions. [2022-12-14 14:23:03,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:23:03,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) Word has length 318 [2022-12-14 14:23:03,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:03,632 INFO L225 Difference]: With dead ends: 28635 [2022-12-14 14:23:03,632 INFO L226 Difference]: Without dead ends: 28633 [2022-12-14 14:23:03,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:23:03,646 INFO L413 NwaCegarLoop]: 3064 mSDtfsCounter, 1501 mSDsluCounter, 8759 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 11823 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:03,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 11823 Invalid, 2031 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2022-12-14 14:23:03,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28633 states. [2022-12-14 14:23:05,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28633 to 28613. [2022-12-14 14:23:05,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28613 states, 14706 states have (on average 1.2301101591187271) internal successors, (18090), 15144 states have internal predecessors, (18090), 12092 states have call successors, (12092), 1836 states have call predecessors, (12092), 1814 states have return successors, (12164), 11820 states have call predecessors, (12164), 12092 states have call successors, (12164) [2022-12-14 14:23:05,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28613 states to 28613 states and 42346 transitions. [2022-12-14 14:23:05,416 INFO L78 Accepts]: Start accepts. Automaton has 28613 states and 42346 transitions. Word has length 318 [2022-12-14 14:23:05,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:05,416 INFO L495 AbstractCegarLoop]: Abstraction has 28613 states and 42346 transitions. [2022-12-14 14:23:05,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (51), 1 states have call predecessors, (51), 2 states have return successors, (48), 2 states have call predecessors, (48), 1 states have call successors, (48) [2022-12-14 14:23:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 28613 states and 42346 transitions. [2022-12-14 14:23:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-12-14 14:23:05,441 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:05,441 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:23:05,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:23:05,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 14:23:05,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:23:05,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:05,642 INFO L85 PathProgramCache]: Analyzing trace with hash 32613955, now seen corresponding path program 1 times [2022-12-14 14:23:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:05,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552307821] [2022-12-14 14:23:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:05,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-12-14 14:23:06,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:06,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552307821] [2022-12-14 14:23:06,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552307821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:06,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:06,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:23:06,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847020837] [2022-12-14 14:23:06,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:06,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:23:06,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:06,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:23:06,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:23:06,178 INFO L87 Difference]: Start difference. First operand 28613 states and 42346 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 14:23:09,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:14,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:14,011 INFO L93 Difference]: Finished difference Result 63529 states and 94127 transitions. [2022-12-14 14:23:14,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:23:14,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 329 [2022-12-14 14:23:14,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:14,136 INFO L225 Difference]: With dead ends: 63529 [2022-12-14 14:23:14,136 INFO L226 Difference]: Without dead ends: 34927 [2022-12-14 14:23:14,218 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 [2022-12-14 14:23:14,219 INFO L413 NwaCegarLoop]: 3508 mSDtfsCounter, 1590 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 5530 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:14,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 5530 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-12-14 14:23:14,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34927 states. [2022-12-14 14:23:16,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34927 to 34917. [2022-12-14 14:23:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34917 states, 17940 states have (on average 1.2305462653288741) internal successors, (22076), 18464 states have internal predecessors, (22076), 14768 states have call successors, (14768), 2234 states have call predecessors, (14768), 2208 states have return successors, (14840), 14446 states have call predecessors, (14840), 14768 states have call successors, (14840) [2022-12-14 14:23:16,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34917 states to 34917 states and 51684 transitions. [2022-12-14 14:23:16,402 INFO L78 Accepts]: Start accepts. Automaton has 34917 states and 51684 transitions. Word has length 329 [2022-12-14 14:23:16,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:16,402 INFO L495 AbstractCegarLoop]: Abstraction has 34917 states and 51684 transitions. [2022-12-14 14:23:16,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 14:23:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 34917 states and 51684 transitions. [2022-12-14 14:23:16,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-14 14:23:16,426 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:16,426 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:23:16,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:23:16,426 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:23:16,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:16,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1037657958, now seen corresponding path program 1 times [2022-12-14 14:23:16,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:16,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588459571] [2022-12-14 14:23:16,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:16,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-12-14 14:23:16,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:16,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588459571] [2022-12-14 14:23:16,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588459571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:16,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:16,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:23:16,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851298797] [2022-12-14 14:23:16,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:16,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:23:16,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:16,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:23:16,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:23:16,778 INFO L87 Difference]: Start difference. First operand 34917 states and 51684 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-12-14 14:23:22,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:22,691 INFO L93 Difference]: Finished difference Result 69658 states and 102616 transitions. [2022-12-14 14:23:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:23:22,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 368 [2022-12-14 14:23:22,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:22,821 INFO L225 Difference]: With dead ends: 69658 [2022-12-14 14:23:22,821 INFO L226 Difference]: Without dead ends: 34752 [2022-12-14 14:23:22,927 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 [2022-12-14 14:23:22,927 INFO L413 NwaCegarLoop]: 2666 mSDtfsCounter, 2035 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 4694 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:22,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 4694 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 14:23:22,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34752 states. [2022-12-14 14:23:24,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34752 to 34742. [2022-12-14 14:23:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34742 states, 18425 states have (on average 1.221438263229308) internal successors, (22505), 18979 states have internal predecessors, (22505), 14048 states have call successors, (14048), 2306 states have call predecessors, (14048), 2268 states have return successors, (14186), 13670 states have call predecessors, (14186), 14048 states have call successors, (14186) [2022-12-14 14:23:25,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34742 states to 34742 states and 50739 transitions. [2022-12-14 14:23:25,073 INFO L78 Accepts]: Start accepts. Automaton has 34742 states and 50739 transitions. Word has length 368 [2022-12-14 14:23:25,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:25,073 INFO L495 AbstractCegarLoop]: Abstraction has 34742 states and 50739 transitions. [2022-12-14 14:23:25,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-12-14 14:23:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 34742 states and 50739 transitions. [2022-12-14 14:23:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-12-14 14:23:25,081 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:25,081 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:23:25,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:23:25,081 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:23:25,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:25,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1939885987, now seen corresponding path program 1 times [2022-12-14 14:23:25,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:25,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738587758] [2022-12-14 14:23:25,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:25,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:25,450 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-12-14 14:23:25,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:25,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738587758] [2022-12-14 14:23:25,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738587758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:25,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:25,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:23:25,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109133680] [2022-12-14 14:23:25,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:25,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:23:25,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:25,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:23:25,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:23:25,453 INFO L87 Difference]: Start difference. First operand 34742 states and 50739 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:23:27,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:30,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:35,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:40,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:40,880 INFO L93 Difference]: Finished difference Result 75977 states and 110911 transitions. [2022-12-14 14:23:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:23:40,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 365 [2022-12-14 14:23:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:41,012 INFO L225 Difference]: With dead ends: 75977 [2022-12-14 14:23:41,013 INFO L226 Difference]: Without dead ends: 41264 [2022-12-14 14:23:41,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:23:41,110 INFO L413 NwaCegarLoop]: 3574 mSDtfsCounter, 1696 mSDsluCounter, 9166 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 12740 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:41,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 12740 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1212 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2022-12-14 14:23:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41264 states. [2022-12-14 14:23:43,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41264 to 41226. [2022-12-14 14:23:43,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41226 states, 21828 states have (on average 1.22310793476269) internal successors, (26698), 22563 states have internal predecessors, (26698), 16634 states have call successors, (16634), 2803 states have call predecessors, (16634), 2763 states have return successors, (16790), 16133 states have call predecessors, (16790), 16634 states have call successors, (16790) [2022-12-14 14:23:43,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41226 states to 41226 states and 60122 transitions. [2022-12-14 14:23:43,330 INFO L78 Accepts]: Start accepts. Automaton has 41226 states and 60122 transitions. Word has length 365 [2022-12-14 14:23:43,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:43,331 INFO L495 AbstractCegarLoop]: Abstraction has 41226 states and 60122 transitions. [2022-12-14 14:23:43,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:23:43,331 INFO L276 IsEmpty]: Start isEmpty. Operand 41226 states and 60122 transitions. [2022-12-14 14:23:43,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-12-14 14:23:43,336 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:43,336 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:23:43,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:23:43,336 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:23:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:43,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1192821154, now seen corresponding path program 1 times [2022-12-14 14:23:43,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:43,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711896831] [2022-12-14 14:23:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:43,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-12-14 14:23:43,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:43,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711896831] [2022-12-14 14:23:43,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711896831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:43,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:43,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:23:43,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223359787] [2022-12-14 14:23:43,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:43,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:23:43,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:43,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:23:43,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:23:43,640 INFO L87 Difference]: Start difference. First operand 41226 states and 60122 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:23:45,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:47,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:49,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:51,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:23:58,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:58,922 INFO L93 Difference]: Finished difference Result 87893 states and 128261 transitions. [2022-12-14 14:23:58,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:23:58,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 366 [2022-12-14 14:23:58,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:59,104 INFO L225 Difference]: With dead ends: 87893 [2022-12-14 14:23:59,104 INFO L226 Difference]: Without dead ends: 46696 [2022-12-14 14:23:59,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:23:59,234 INFO L413 NwaCegarLoop]: 3514 mSDtfsCounter, 1575 mSDsluCounter, 9050 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 12564 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:59,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 12564 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-12-14 14:23:59,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46696 states. [2022-12-14 14:24:01,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46696 to 46658. [2022-12-14 14:24:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46658 states, 24687 states have (on average 1.2223842508202698) internal successors, (30177), 25497 states have internal predecessors, (30177), 18842 states have call successors, (18842), 3160 states have call predecessors, (18842), 3128 states have return successors, (19010), 18306 states have call predecessors, (19010), 18842 states have call successors, (19010) [2022-12-14 14:24:01,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46658 states to 46658 states and 68029 transitions. [2022-12-14 14:24:01,753 INFO L78 Accepts]: Start accepts. Automaton has 46658 states and 68029 transitions. Word has length 366 [2022-12-14 14:24:01,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:24:01,754 INFO L495 AbstractCegarLoop]: Abstraction has 46658 states and 68029 transitions. [2022-12-14 14:24:01,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:24:01,754 INFO L276 IsEmpty]: Start isEmpty. Operand 46658 states and 68029 transitions. [2022-12-14 14:24:01,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-14 14:24:01,760 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:24:01,760 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:24:01,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 14:24:01,760 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:24:01,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:24:01,761 INFO L85 PathProgramCache]: Analyzing trace with hash -793248519, now seen corresponding path program 1 times [2022-12-14 14:24:01,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:24:01,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388071548] [2022-12-14 14:24:01,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:24:01,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:24:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:24:02,053 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-12-14 14:24:02,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:24:02,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388071548] [2022-12-14 14:24:02,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388071548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:24:02,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:24:02,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:24:02,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850009746] [2022-12-14 14:24:02,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:24:02,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:24:02,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:24:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:24:02,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:24:02,055 INFO L87 Difference]: Start difference. First operand 46658 states and 68029 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:24:05,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:14,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:24:14,192 INFO L93 Difference]: Finished difference Result 98673 states and 144027 transitions. [2022-12-14 14:24:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:24:14,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 368 [2022-12-14 14:24:14,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:24:14,397 INFO L225 Difference]: With dead ends: 98673 [2022-12-14 14:24:14,397 INFO L226 Difference]: Without dead ends: 52044 [2022-12-14 14:24:14,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:24:14,544 INFO L413 NwaCegarLoop]: 3513 mSDtfsCounter, 1563 mSDsluCounter, 9054 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 12567 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:24:14,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 12567 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-12-14 14:24:14,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52044 states. [2022-12-14 14:24:17,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52044 to 52006. [2022-12-14 14:24:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52006 states, 27510 states have (on average 1.222101054162123) internal successors, (33620), 28395 states have internal predecessors, (33620), 21038 states have call successors, (21038), 3493 states have call predecessors, (21038), 3457 states have return successors, (21206), 20455 states have call predecessors, (21206), 21038 states have call successors, (21206) [2022-12-14 14:24:17,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52006 states to 52006 states and 75864 transitions. [2022-12-14 14:24:17,336 INFO L78 Accepts]: Start accepts. Automaton has 52006 states and 75864 transitions. Word has length 368 [2022-12-14 14:24:17,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:24:17,336 INFO L495 AbstractCegarLoop]: Abstraction has 52006 states and 75864 transitions. [2022-12-14 14:24:17,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:24:17,336 INFO L276 IsEmpty]: Start isEmpty. Operand 52006 states and 75864 transitions. [2022-12-14 14:24:17,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-12-14 14:24:17,342 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:24:17,342 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:24:17,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 14:24:17,343 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:24:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:24:17,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1379996246, now seen corresponding path program 1 times [2022-12-14 14:24:17,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:24:17,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537959875] [2022-12-14 14:24:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:24:17,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:24:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:24:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2022-12-14 14:24:17,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:24:17,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537959875] [2022-12-14 14:24:17,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537959875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:24:17,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:24:17,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:24:17,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137649991] [2022-12-14 14:24:17,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:24:17,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:24:17,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:24:17,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:24:17,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:24:17,518 INFO L87 Difference]: Start difference. First operand 52006 states and 75864 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:24:19,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:20,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:24:26,329 INFO L93 Difference]: Finished difference Result 110041 states and 160555 transitions. [2022-12-14 14:24:26,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:24:26,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 379 [2022-12-14 14:24:26,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:24:26,558 INFO L225 Difference]: With dead ends: 110041 [2022-12-14 14:24:26,558 INFO L226 Difference]: Without dead ends: 58064 [2022-12-14 14:24:26,713 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 [2022-12-14 14:24:26,713 INFO L413 NwaCegarLoop]: 3302 mSDtfsCounter, 1692 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:24:26,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 5327 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 14:24:26,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58064 states. [2022-12-14 14:24:29,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58064 to 58050. [2022-12-14 14:24:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58050 states, 30669 states have (on average 1.2242003325833903) internal successors, (37545), 31727 states have internal predecessors, (37545), 23488 states have call successors, (23488), 3938 states have call predecessors, (23488), 3892 states have return successors, (23656), 22774 states have call predecessors, (23656), 23488 states have call successors, (23656) [2022-12-14 14:24:30,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58050 states to 58050 states and 84689 transitions. [2022-12-14 14:24:30,043 INFO L78 Accepts]: Start accepts. Automaton has 58050 states and 84689 transitions. Word has length 379 [2022-12-14 14:24:30,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:24:30,044 INFO L495 AbstractCegarLoop]: Abstraction has 58050 states and 84689 transitions. [2022-12-14 14:24:30,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:24:30,044 INFO L276 IsEmpty]: Start isEmpty. Operand 58050 states and 84689 transitions. [2022-12-14 14:24:30,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2022-12-14 14:24:30,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:24:30,055 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:24:30,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 14:24:30,055 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:24:30,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:24:30,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2110005224, now seen corresponding path program 1 times [2022-12-14 14:24:30,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:24:30,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495737462] [2022-12-14 14:24:30,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:24:30,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:24:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:24:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2022-12-14 14:24:30,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:24:30,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495737462] [2022-12-14 14:24:30,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495737462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:24:30,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:24:30,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:24:30,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271830747] [2022-12-14 14:24:30,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:24:30,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:24:30,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:24:30,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:24:30,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:24:30,450 INFO L87 Difference]: Start difference. First operand 58050 states and 84689 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:24:32,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:33,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:34,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:39,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:24:39,641 INFO L93 Difference]: Finished difference Result 121517 states and 177407 transitions. [2022-12-14 14:24:39,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:24:39,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 387 [2022-12-14 14:24:39,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:24:39,900 INFO L225 Difference]: With dead ends: 121517 [2022-12-14 14:24:39,901 INFO L226 Difference]: Without dead ends: 63496 [2022-12-14 14:24:40,171 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 [2022-12-14 14:24:40,172 INFO L413 NwaCegarLoop]: 3498 mSDtfsCounter, 1575 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 5526 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:24:40,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 5526 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 14:24:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63496 states. [2022-12-14 14:24:43,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63496 to 63482. [2022-12-14 14:24:43,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63482 states, 33552 states have (on average 1.22412970910825) internal successors, (41072), 34685 states have internal predecessors, (41072), 25696 states have call successors, (25696), 4283 states have call predecessors, (25696), 4233 states have return successors, (25864), 24935 states have call predecessors, (25864), 25696 states have call successors, (25864) [2022-12-14 14:24:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63482 states to 63482 states and 92632 transitions. [2022-12-14 14:24:44,103 INFO L78 Accepts]: Start accepts. Automaton has 63482 states and 92632 transitions. Word has length 387 [2022-12-14 14:24:44,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:24:44,103 INFO L495 AbstractCegarLoop]: Abstraction has 63482 states and 92632 transitions. [2022-12-14 14:24:44,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 14:24:44,103 INFO L276 IsEmpty]: Start isEmpty. Operand 63482 states and 92632 transitions. [2022-12-14 14:24:44,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-12-14 14:24:44,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:24:44,113 INFO L195 NwaCegarLoop]: trace histogram [18, 15, 15, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:24:44,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 14:24:44,114 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:24:44,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:24:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash 47447830, now seen corresponding path program 1 times [2022-12-14 14:24:44,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:24:44,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071061557] [2022-12-14 14:24:44,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:24:44,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:24:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:24:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 78 proven. 15 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2022-12-14 14:24:44,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:24:44,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071061557] [2022-12-14 14:24:44,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071061557] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:24:44,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953154179] [2022-12-14 14:24:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:24:44,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:24:44,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:24:44,403 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:24:44,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:24:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:24:45,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 4088 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:24:45,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:24:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2022-12-14 14:24:45,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:24:45,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953154179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:24:45,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:24:45,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 14:24:45,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342987931] [2022-12-14 14:24:45,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:24:45,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:24:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:24:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:24:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:24:45,109 INFO L87 Difference]: Start difference. First operand 63482 states and 92632 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-12-14 14:24:46,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:24:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:24:54,262 INFO L93 Difference]: Finished difference Result 132441 states and 193389 transitions. [2022-12-14 14:24:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:24:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 398 [2022-12-14 14:24:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:24:54,550 INFO L225 Difference]: With dead ends: 132441 [2022-12-14 14:24:54,550 INFO L226 Difference]: Without dead ends: 68988 [2022-12-14 14:24:54,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:24:54,815 INFO L413 NwaCegarLoop]: 3273 mSDtfsCounter, 2072 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 4959 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:24:54,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 4959 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 14:24:54,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68988 states. [2022-12-14 14:24:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68988 to 68974. [2022-12-14 14:24:58,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68974 states, 36483 states have (on average 1.2260778992955623) internal successors, (44731), 37691 states have internal predecessors, (44731), 27904 states have call successors, (27904), 4640 states have call predecessors, (27904), 4586 states have return successors, (28072), 27096 states have call predecessors, (28072), 27904 states have call successors, (28072) [2022-12-14 14:24:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68974 states to 68974 states and 100707 transitions. [2022-12-14 14:24:58,551 INFO L78 Accepts]: Start accepts. Automaton has 68974 states and 100707 transitions. Word has length 398 [2022-12-14 14:24:58,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:24:58,552 INFO L495 AbstractCegarLoop]: Abstraction has 68974 states and 100707 transitions. [2022-12-14 14:24:58,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-12-14 14:24:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 68974 states and 100707 transitions. [2022-12-14 14:24:58,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-12-14 14:24:58,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:24:58,562 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:24:58,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:24:58,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 14:24:58,762 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:24:58,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:24:58,763 INFO L85 PathProgramCache]: Analyzing trace with hash 364966219, now seen corresponding path program 1 times [2022-12-14 14:24:58,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:24:58,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640970041] [2022-12-14 14:24:58,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:24:58,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:24:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:24:59,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2022-12-14 14:24:59,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:24:59,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640970041] [2022-12-14 14:24:59,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640970041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:24:59,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:24:59,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:24:59,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327969499] [2022-12-14 14:24:59,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:24:59,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:24:59,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:24:59,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:24:59,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:24:59,034 INFO L87 Difference]: Start difference. First operand 68974 states and 100707 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 14:25:02,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:13,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:25:13,692 INFO L93 Difference]: Finished difference Result 143539 states and 209521 transitions. [2022-12-14 14:25:13,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:25:13,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) Word has length 414 [2022-12-14 14:25:13,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:25:14,030 INFO L225 Difference]: With dead ends: 143539 [2022-12-14 14:25:14,030 INFO L226 Difference]: Without dead ends: 74594 [2022-12-14 14:25:14,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:25:14,241 INFO L413 NwaCegarLoop]: 3512 mSDtfsCounter, 1695 mSDsluCounter, 9042 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 12554 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:25:14,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 12554 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-12-14 14:25:14,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74594 states. [2022-12-14 14:25:17,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74594 to 69292. [2022-12-14 14:25:17,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69292 states, 36669 states have (on average 1.2256947285172761) internal successors, (44945), 37881 states have internal predecessors, (44945), 27950 states have call successors, (27950), 4714 states have call predecessors, (27950), 4672 states have return successors, (28130), 27154 states have call predecessors, (28130), 27950 states have call successors, (28130) [2022-12-14 14:25:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69292 states to 69292 states and 101025 transitions. [2022-12-14 14:25:18,174 INFO L78 Accepts]: Start accepts. Automaton has 69292 states and 101025 transitions. Word has length 414 [2022-12-14 14:25:18,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:25:18,175 INFO L495 AbstractCegarLoop]: Abstraction has 69292 states and 101025 transitions. [2022-12-14 14:25:18,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 14:25:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 69292 states and 101025 transitions. [2022-12-14 14:25:18,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-12-14 14:25:18,184 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:25:18,184 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:25:18,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 14:25:18,184 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:25:18,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:25:18,185 INFO L85 PathProgramCache]: Analyzing trace with hash 71683912, now seen corresponding path program 1 times [2022-12-14 14:25:18,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:25:18,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263023425] [2022-12-14 14:25:18,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:18,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:25:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:25:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2022-12-14 14:25:18,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:25:18,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263023425] [2022-12-14 14:25:18,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263023425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:25:18,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:25:18,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:25:18,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124057419] [2022-12-14 14:25:18,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:25:18,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:25:18,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:25:18,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:25:18,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:25:18,461 INFO L87 Difference]: Start difference. First operand 69292 states and 101025 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 14:25:20,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:21,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:23,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:26,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:35,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:25:35,685 INFO L93 Difference]: Finished difference Result 143953 states and 209995 transitions. [2022-12-14 14:25:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:25:35,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) Word has length 416 [2022-12-14 14:25:35,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:25:35,981 INFO L225 Difference]: With dead ends: 143953 [2022-12-14 14:25:35,981 INFO L226 Difference]: Without dead ends: 74690 [2022-12-14 14:25:36,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:25:36,253 INFO L413 NwaCegarLoop]: 3514 mSDtfsCounter, 1573 mSDsluCounter, 9050 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 12564 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:25:36,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 12564 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2022-12-14 14:25:36,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74690 states. [2022-12-14 14:25:40,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74690 to 69328. [2022-12-14 14:25:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69328 states, 36693 states have (on average 1.2255471070776442) internal successors, (44969), 37905 states have internal predecessors, (44969), 27950 states have call successors, (27950), 4714 states have call predecessors, (27950), 4684 states have return successors, (28142), 27166 states have call predecessors, (28142), 27950 states have call successors, (28142) [2022-12-14 14:25:40,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69328 states to 69328 states and 101061 transitions. [2022-12-14 14:25:40,575 INFO L78 Accepts]: Start accepts. Automaton has 69328 states and 101061 transitions. Word has length 416 [2022-12-14 14:25:40,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:25:40,575 INFO L495 AbstractCegarLoop]: Abstraction has 69328 states and 101061 transitions. [2022-12-14 14:25:40,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 14:25:40,576 INFO L276 IsEmpty]: Start isEmpty. Operand 69328 states and 101061 transitions. [2022-12-14 14:25:40,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-12-14 14:25:40,585 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:25:40,585 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:25:40,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 14:25:40,585 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:25:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:25:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash 945722081, now seen corresponding path program 1 times [2022-12-14 14:25:40,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:25:40,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216043710] [2022-12-14 14:25:40,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:40,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:25:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:25:40,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 120 proven. 24 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-12-14 14:25:40,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:25:40,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216043710] [2022-12-14 14:25:40,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216043710] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:25:40,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934547631] [2022-12-14 14:25:40,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:25:40,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:25:40,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:25:40,967 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:25:40,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:25:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:25:41,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 4119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:25:41,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:25:41,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 752 trivial. 0 not checked. [2022-12-14 14:25:41,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:25:41,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934547631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:25:41,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:25:41,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-12-14 14:25:41,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458838807] [2022-12-14 14:25:41,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:25:41,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:25:41,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:25:41,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:25:41,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-14 14:25:41,757 INFO L87 Difference]: Start difference. First operand 69328 states and 101061 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 14:25:44,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:48,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:49,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:25:58,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:25:58,031 INFO L93 Difference]: Finished difference Result 144073 states and 210199 transitions. [2022-12-14 14:25:58,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:25:58,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) Word has length 416 [2022-12-14 14:25:58,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:25:58,308 INFO L225 Difference]: With dead ends: 144073 [2022-12-14 14:25:58,308 INFO L226 Difference]: Without dead ends: 74774 [2022-12-14 14:25:58,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:25:58,516 INFO L413 NwaCegarLoop]: 3295 mSDtfsCounter, 2050 mSDsluCounter, 8290 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 11585 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:25:58,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2050 Valid, 11585 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-12-14 14:25:58,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74774 states. [2022-12-14 14:26:02,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74774 to 74736. [2022-12-14 14:26:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74736 states, 39576 states have (on average 1.226601980998585) internal successors, (48544), 40863 states have internal predecessors, (48544), 30146 states have call successors, (30146), 5047 states have call predecessors, (30146), 5013 states have return successors, (30338), 29315 states have call predecessors, (30338), 30146 states have call successors, (30338) [2022-12-14 14:26:02,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74736 states to 74736 states and 109028 transitions. [2022-12-14 14:26:02,662 INFO L78 Accepts]: Start accepts. Automaton has 74736 states and 109028 transitions. Word has length 416 [2022-12-14 14:26:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:26:02,663 INFO L495 AbstractCegarLoop]: Abstraction has 74736 states and 109028 transitions. [2022-12-14 14:26:02,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 3 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 14:26:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 74736 states and 109028 transitions. [2022-12-14 14:26:02,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-12-14 14:26:02,673 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:02,673 INFO L195 NwaCegarLoop]: trace histogram [19, 16, 16, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:26:02,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:26:02,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 14:26:02,875 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:26:02,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:02,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1097325559, now seen corresponding path program 1 times [2022-12-14 14:26:02,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:02,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779841401] [2022-12-14 14:26:02,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:02,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1109 trivial. 0 not checked. [2022-12-14 14:26:03,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:03,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779841401] [2022-12-14 14:26:03,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779841401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:26:03,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:26:03,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:26:03,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298218068] [2022-12-14 14:26:03,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:26:03,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:26:03,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:26:03,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:26:03,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:26:03,905 INFO L87 Difference]: Start difference. First operand 74736 states and 109028 transitions. Second operand has 5 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 14:26:05,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:26:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:26:15,755 INFO L93 Difference]: Finished difference Result 125077 states and 183147 transitions. [2022-12-14 14:26:15,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:26:15,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 428 [2022-12-14 14:26:15,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:26:16,053 INFO L225 Difference]: With dead ends: 125077 [2022-12-14 14:26:16,053 INFO L226 Difference]: Without dead ends: 74540 [2022-12-14 14:26:16,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:26:16,228 INFO L413 NwaCegarLoop]: 2060 mSDtfsCounter, 6 mSDsluCounter, 6174 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:26:16,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8234 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-12-14 14:26:16,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74540 states. [2022-12-14 14:26:19,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74540 to 74540. [2022-12-14 14:26:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74540 states, 39446 states have (on average 1.2256249049333265) internal successors, (48346), 40733 states have internal predecessors, (48346), 30112 states have call successors, (30112), 5015 states have call predecessors, (30112), 4981 states have return successors, (30304), 29281 states have call predecessors, (30304), 30112 states have call successors, (30304) [2022-12-14 14:26:20,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74540 states to 74540 states and 108762 transitions. [2022-12-14 14:26:20,354 INFO L78 Accepts]: Start accepts. Automaton has 74540 states and 108762 transitions. Word has length 428 [2022-12-14 14:26:20,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:26:20,354 INFO L495 AbstractCegarLoop]: Abstraction has 74540 states and 108762 transitions. [2022-12-14 14:26:20,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 14:26:20,355 INFO L276 IsEmpty]: Start isEmpty. Operand 74540 states and 108762 transitions. [2022-12-14 14:26:20,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2022-12-14 14:26:20,444 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:20,444 INFO L195 NwaCegarLoop]: trace histogram [23, 20, 20, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:26:20,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 14:26:20,445 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:26:20,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash -955831579, now seen corresponding path program 1 times [2022-12-14 14:26:20,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:20,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460914841] [2022-12-14 14:26:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:20,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1709 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2022-12-14 14:26:20,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:20,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460914841] [2022-12-14 14:26:20,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460914841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:26:20,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:26:20,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:26:20,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260139011] [2022-12-14 14:26:20,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:26:20,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:26:20,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:26:20,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:26:20,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:26:20,737 INFO L87 Difference]: Start difference. First operand 74540 states and 108762 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-12-14 14:26:23,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:26:24,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:26:25,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:26:26,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:26:32,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:26:32,315 INFO L93 Difference]: Finished difference Result 156154 states and 227874 transitions. [2022-12-14 14:26:32,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:26:32,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 566 [2022-12-14 14:26:32,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:26:32,648 INFO L225 Difference]: With dead ends: 156154 [2022-12-14 14:26:32,648 INFO L226 Difference]: Without dead ends: 81643 [2022-12-14 14:26:32,884 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 [2022-12-14 14:26:32,885 INFO L413 NwaCegarLoop]: 3309 mSDtfsCounter, 1698 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 5335 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:26:32,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 5335 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 14:26:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81643 states. [2022-12-14 14:26:36,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81643 to 81631. [2022-12-14 14:26:37,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81631 states, 43178 states have (on average 1.226156839131039) internal successors, (52943), 44656 states have internal predecessors, (52943), 32961 states have call successors, (32961), 5535 states have call predecessors, (32961), 5491 states have return successors, (33171), 31981 states have call predecessors, (33171), 32961 states have call successors, (33171) [2022-12-14 14:26:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81631 states to 81631 states and 119075 transitions. [2022-12-14 14:26:37,399 INFO L78 Accepts]: Start accepts. Automaton has 81631 states and 119075 transitions. Word has length 566 [2022-12-14 14:26:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:26:37,399 INFO L495 AbstractCegarLoop]: Abstraction has 81631 states and 119075 transitions. [2022-12-14 14:26:37,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-12-14 14:26:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 81631 states and 119075 transitions. [2022-12-14 14:26:37,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-12-14 14:26:37,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:37,498 INFO L195 NwaCegarLoop]: trace histogram [23, 20, 20, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:26:37,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 14:26:37,498 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:26:37,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:37,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1657884421, now seen corresponding path program 1 times [2022-12-14 14:26:37,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:37,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667913365] [2022-12-14 14:26:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:37,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2022-12-14 14:26:37,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:37,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667913365] [2022-12-14 14:26:37,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667913365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:26:37,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:26:37,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:26:37,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107142607] [2022-12-14 14:26:37,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:26:37,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:26:37,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:26:37,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:26:37,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:26:37,932 INFO L87 Difference]: Start difference. First operand 81631 states and 119075 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:26:46,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:26:46,952 INFO L93 Difference]: Finished difference Result 168527 states and 245962 transitions. [2022-12-14 14:26:46,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:26:46,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 565 [2022-12-14 14:26:46,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:26:47,313 INFO L225 Difference]: With dead ends: 168527 [2022-12-14 14:26:47,313 INFO L226 Difference]: Without dead ends: 86925 [2022-12-14 14:26:47,643 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 [2022-12-14 14:26:47,644 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 1719 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 5617 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:26:47,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1719 Valid, 5617 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-12-14 14:26:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86925 states. [2022-12-14 14:26:52,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86925 to 86913. [2022-12-14 14:26:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86913 states, 45941 states have (on average 1.2259202019982152) internal successors, (56320), 47494 states have internal predecessors, (56320), 35154 states have call successors, (35154), 5865 states have call predecessors, (35154), 5817 states have return successors, (35364), 34127 states have call predecessors, (35364), 35154 states have call successors, (35364) [2022-12-14 14:26:52,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86913 states to 86913 states and 126838 transitions. [2022-12-14 14:26:52,513 INFO L78 Accepts]: Start accepts. Automaton has 86913 states and 126838 transitions. Word has length 565 [2022-12-14 14:26:52,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:26:52,514 INFO L495 AbstractCegarLoop]: Abstraction has 86913 states and 126838 transitions. [2022-12-14 14:26:52,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:26:52,514 INFO L276 IsEmpty]: Start isEmpty. Operand 86913 states and 126838 transitions. [2022-12-14 14:26:52,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-12-14 14:26:52,632 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:52,632 INFO L195 NwaCegarLoop]: trace histogram [23, 21, 21, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:26:52,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 14:26:52,633 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:26:52,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1786295882, now seen corresponding path program 1 times [2022-12-14 14:26:52,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:52,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336773750] [2022-12-14 14:26:52,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:52,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 1519 trivial. 0 not checked. [2022-12-14 14:26:52,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:52,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336773750] [2022-12-14 14:26:52,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336773750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:26:52,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:26:52,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:26:52,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588310044] [2022-12-14 14:26:52,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:26:52,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:26:52,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:26:52,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:26:52,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:26:52,980 INFO L87 Difference]: Start difference. First operand 86913 states and 126838 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 3 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) [2022-12-14 14:27:02,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:27:02,527 INFO L93 Difference]: Finished difference Result 175977 states and 256807 transitions. [2022-12-14 14:27:02,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:27:02,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 3 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) Word has length 584 [2022-12-14 14:27:02,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:27:02,875 INFO L225 Difference]: With dead ends: 175977 [2022-12-14 14:27:02,875 INFO L226 Difference]: Without dead ends: 89093 [2022-12-14 14:27:03,147 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 [2022-12-14 14:27:03,147 INFO L413 NwaCegarLoop]: 3347 mSDtfsCounter, 1376 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 5375 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:27:03,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 5375 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 14:27:03,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89093 states. [2022-12-14 14:27:07,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89093 to 89085. [2022-12-14 14:27:07,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89085 states, 47115 states have (on average 1.2257242916268705) internal successors, (57750), 48700 states have internal predecessors, (57750), 36014 states have call successors, (36014), 6005 states have call predecessors, (36014), 5955 states have return successors, (36224), 34965 states have call predecessors, (36224), 36014 states have call successors, (36224) [2022-12-14 14:27:08,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89085 states to 89085 states and 129988 transitions. [2022-12-14 14:27:08,131 INFO L78 Accepts]: Start accepts. Automaton has 89085 states and 129988 transitions. Word has length 584 [2022-12-14 14:27:08,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:27:08,131 INFO L495 AbstractCegarLoop]: Abstraction has 89085 states and 129988 transitions. [2022-12-14 14:27:08,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 3 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) [2022-12-14 14:27:08,131 INFO L276 IsEmpty]: Start isEmpty. Operand 89085 states and 129988 transitions. [2022-12-14 14:27:08,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2022-12-14 14:27:08,266 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:27:08,266 INFO L195 NwaCegarLoop]: trace histogram [24, 20, 20, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:27:08,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 14:27:08,266 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:27:08,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:27:08,267 INFO L85 PathProgramCache]: Analyzing trace with hash 404009569, now seen corresponding path program 1 times [2022-12-14 14:27:08,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:27:08,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272980032] [2022-12-14 14:27:08,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:27:08,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:27:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:27:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2022-12-14 14:27:08,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:27:08,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272980032] [2022-12-14 14:27:08,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272980032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:27:08,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:27:08,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:27:08,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970525683] [2022-12-14 14:27:08,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:27:08,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:27:08,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:27:08,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:27:08,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:27:08,559 INFO L87 Difference]: Start difference. First operand 89085 states and 129988 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-12-14 14:27:10,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:27:11,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:27:20,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:27:20,695 INFO L93 Difference]: Finished difference Result 183411 states and 267740 transitions. [2022-12-14 14:27:20,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:27:20,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 582 [2022-12-14 14:27:20,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:27:21,074 INFO L225 Difference]: With dead ends: 183411 [2022-12-14 14:27:21,074 INFO L226 Difference]: Without dead ends: 94355 [2022-12-14 14:27:21,382 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 [2022-12-14 14:27:21,383 INFO L413 NwaCegarLoop]: 3445 mSDtfsCounter, 1544 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:27:21,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 5473 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-12-14 14:27:21,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94355 states. [2022-12-14 14:27:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94355 to 94343. [2022-12-14 14:27:26,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94343 states, 49854 states have (on average 1.2256388654872228) internal successors, (61103), 51514 states have internal predecessors, (61103), 38207 states have call successors, (38207), 6335 states have call predecessors, (38207), 6281 states have return successors, (38417), 37111 states have call predecessors, (38417), 38207 states have call successors, (38417) [2022-12-14 14:27:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94343 states to 94343 states and 137727 transitions. [2022-12-14 14:27:26,680 INFO L78 Accepts]: Start accepts. Automaton has 94343 states and 137727 transitions. Word has length 582 [2022-12-14 14:27:26,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:27:26,681 INFO L495 AbstractCegarLoop]: Abstraction has 94343 states and 137727 transitions. [2022-12-14 14:27:26,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-12-14 14:27:26,681 INFO L276 IsEmpty]: Start isEmpty. Operand 94343 states and 137727 transitions. [2022-12-14 14:27:26,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-12-14 14:27:26,880 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:27:26,880 INFO L195 NwaCegarLoop]: trace histogram [26, 20, 20, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:27:26,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 14:27:26,880 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:27:26,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:27:26,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1411135303, now seen corresponding path program 1 times [2022-12-14 14:27:26,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:27:26,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187605529] [2022-12-14 14:27:26,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:27:26,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:27:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:27:27,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2043 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 1874 trivial. 0 not checked. [2022-12-14 14:27:27,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:27:27,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187605529] [2022-12-14 14:27:27,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187605529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:27:27,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:27:27,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:27:27,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963500013] [2022-12-14 14:27:27,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:27:27,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:27:27,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:27:27,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:27:27,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:27:27,305 INFO L87 Difference]: Start difference. First operand 94343 states and 137727 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 3 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:27:30,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:27:33,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:27:43,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:27:43,635 INFO L93 Difference]: Finished difference Result 193951 states and 283230 transitions. [2022-12-14 14:27:43,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:27:43,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 3 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76) Word has length 605 [2022-12-14 14:27:43,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:27:44,069 INFO L225 Difference]: With dead ends: 193951 [2022-12-14 14:27:44,069 INFO L226 Difference]: Without dead ends: 99637 [2022-12-14 14:27:44,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:27:44,438 INFO L413 NwaCegarLoop]: 3504 mSDtfsCounter, 1667 mSDsluCounter, 9026 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 12530 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:27:44,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 12530 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-12-14 14:27:44,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99637 states. [2022-12-14 14:27:49,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99637 to 94379. [2022-12-14 14:27:49,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94379 states, 49878 states have (on average 1.225530293917158) internal successors, (61127), 51538 states have internal predecessors, (61127), 38207 states have call successors, (38207), 6335 states have call predecessors, (38207), 6293 states have return successors, (38429), 37123 states have call predecessors, (38429), 38207 states have call successors, (38429) [2022-12-14 14:27:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94379 states to 94379 states and 137763 transitions. [2022-12-14 14:27:49,749 INFO L78 Accepts]: Start accepts. Automaton has 94379 states and 137763 transitions. Word has length 605 [2022-12-14 14:27:49,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:27:49,750 INFO L495 AbstractCegarLoop]: Abstraction has 94379 states and 137763 transitions. [2022-12-14 14:27:49,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 3 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:27:49,750 INFO L276 IsEmpty]: Start isEmpty. Operand 94379 states and 137763 transitions. [2022-12-14 14:27:50,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2022-12-14 14:27:50,035 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:27:50,035 INFO L195 NwaCegarLoop]: trace histogram [26, 20, 20, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:27:50,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 14:27:50,036 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:27:50,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:27:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash 508951336, now seen corresponding path program 1 times [2022-12-14 14:27:50,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:27:50,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614969226] [2022-12-14 14:27:50,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:27:50,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:27:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:27:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 1875 trivial. 0 not checked. [2022-12-14 14:27:50,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:27:50,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614969226] [2022-12-14 14:27:50,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614969226] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:27:50,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:27:50,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:27:50,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821518085] [2022-12-14 14:27:50,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:27:50,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:27:50,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:27:50,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:27:50,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:27:50,459 INFO L87 Difference]: Start difference. First operand 94379 states and 137763 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 3 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:27:52,859 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 [] [2022-12-14 14:27:53,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:27:56,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:28:07,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:07,292 INFO L93 Difference]: Finished difference Result 194083 states and 283422 transitions. [2022-12-14 14:28:07,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:28:07,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 3 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76) Word has length 606 [2022-12-14 14:28:07,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:07,702 INFO L225 Difference]: With dead ends: 194083 [2022-12-14 14:28:07,702 INFO L226 Difference]: Without dead ends: 99733 [2022-12-14 14:28:07,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:28:07,998 INFO L413 NwaCegarLoop]: 3506 mSDtfsCounter, 1543 mSDsluCounter, 9034 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 12540 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:28:07,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 12540 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2022-12-14 14:28:08,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99733 states. [2022-12-14 14:28:12,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99733 to 94415. [2022-12-14 14:28:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94415 states, 49902 states have (on average 1.2254218267804897) internal successors, (61151), 51562 states have internal predecessors, (61151), 38207 states have call successors, (38207), 6335 states have call predecessors, (38207), 6305 states have return successors, (38441), 37135 states have call predecessors, (38441), 38207 states have call successors, (38441) [2022-12-14 14:28:13,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94415 states to 94415 states and 137799 transitions. [2022-12-14 14:28:13,283 INFO L78 Accepts]: Start accepts. Automaton has 94415 states and 137799 transitions. Word has length 606 [2022-12-14 14:28:13,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:13,283 INFO L495 AbstractCegarLoop]: Abstraction has 94415 states and 137799 transitions. [2022-12-14 14:28:13,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 3 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:28:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand 94415 states and 137799 transitions. [2022-12-14 14:28:13,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2022-12-14 14:28:13,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:13,482 INFO L195 NwaCegarLoop]: trace histogram [26, 20, 20, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:13,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 14:28:13,482 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:13,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:13,483 INFO L85 PathProgramCache]: Analyzing trace with hash 323204637, now seen corresponding path program 1 times [2022-12-14 14:28:13,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:13,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283666792] [2022-12-14 14:28:13,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:13,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 1875 trivial. 0 not checked. [2022-12-14 14:28:13,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:13,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283666792] [2022-12-14 14:28:13,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283666792] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:13,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:13,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:28:13,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571251248] [2022-12-14 14:28:13,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:13,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:28:13,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:13,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:28:13,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:28:13,911 INFO L87 Difference]: Start difference. First operand 94415 states and 137799 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 3 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:28:16,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:28:18,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:28:29,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:29,675 INFO L93 Difference]: Finished difference Result 188737 states and 275439 transitions. [2022-12-14 14:28:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:28:29,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 3 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76) Word has length 607 [2022-12-14 14:28:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:30,071 INFO L225 Difference]: With dead ends: 188737 [2022-12-14 14:28:30,071 INFO L226 Difference]: Without dead ends: 94351 [2022-12-14 14:28:30,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:28:30,381 INFO L413 NwaCegarLoop]: 3505 mSDtfsCounter, 1531 mSDsluCounter, 9038 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 12543 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:28:30,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 12543 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-12-14 14:28:30,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94351 states. [2022-12-14 14:28:34,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94351 to 89009. [2022-12-14 14:28:34,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89009 states, 47023 states have (on average 1.2223380048061587) internal successors, (57478), 48608 states have internal predecessors, (57478), 36010 states have call successors, (36010), 6001 states have call predecessors, (36010), 5975 states have return successors, (36244), 34985 states have call predecessors, (36244), 36010 states have call successors, (36244) [2022-12-14 14:28:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89009 states to 89009 states and 129732 transitions. [2022-12-14 14:28:35,405 INFO L78 Accepts]: Start accepts. Automaton has 89009 states and 129732 transitions. Word has length 607 [2022-12-14 14:28:35,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:35,405 INFO L495 AbstractCegarLoop]: Abstraction has 89009 states and 129732 transitions. [2022-12-14 14:28:35,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 3 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:28:35,406 INFO L276 IsEmpty]: Start isEmpty. Operand 89009 states and 129732 transitions. [2022-12-14 14:28:35,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2022-12-14 14:28:35,655 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:35,655 INFO L195 NwaCegarLoop]: trace histogram [27, 21, 21, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:35,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 14:28:35,655 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:35,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:35,656 INFO L85 PathProgramCache]: Analyzing trace with hash -269432678, now seen corresponding path program 2 times [2022-12-14 14:28:35,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:35,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219717509] [2022-12-14 14:28:35,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:35,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2314 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 2128 trivial. 0 not checked. [2022-12-14 14:28:35,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:35,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219717509] [2022-12-14 14:28:35,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219717509] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:35,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:35,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:28:35,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417144391] [2022-12-14 14:28:35,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:35,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:28:35,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:35,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:28:35,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:28:35,949 INFO L87 Difference]: Start difference. First operand 89009 states and 129732 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:28:39,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:28:45,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:45,645 INFO L93 Difference]: Finished difference Result 177905 states and 259249 transitions. [2022-12-14 14:28:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:28:45,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 637 [2022-12-14 14:28:45,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:46,033 INFO L225 Difference]: With dead ends: 177905 [2022-12-14 14:28:46,033 INFO L226 Difference]: Without dead ends: 88925 [2022-12-14 14:28:46,336 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 [2022-12-14 14:28:46,336 INFO L413 NwaCegarLoop]: 3504 mSDtfsCounter, 1544 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 5528 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:28:46,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 5528 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 14:28:46,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88925 states. [2022-12-14 14:28:50,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88925 to 88913. [2022-12-14 14:28:50,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88913 states, 46927 states have (on average 1.22049140153856) internal successors, (57274), 48512 states have internal predecessors, (57274), 36010 states have call successors, (36010), 6001 states have call predecessors, (36010), 5975 states have return successors, (36244), 34985 states have call predecessors, (36244), 36010 states have call successors, (36244) [2022-12-14 14:28:51,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88913 states to 88913 states and 129528 transitions. [2022-12-14 14:28:51,262 INFO L78 Accepts]: Start accepts. Automaton has 88913 states and 129528 transitions. Word has length 637 [2022-12-14 14:28:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:51,262 INFO L495 AbstractCegarLoop]: Abstraction has 88913 states and 129528 transitions. [2022-12-14 14:28:51,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-12-14 14:28:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 88913 states and 129528 transitions. [2022-12-14 14:28:51,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-12-14 14:28:51,549 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:51,549 INFO L195 NwaCegarLoop]: trace histogram [29, 20, 20, 13, 13, 13, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:51,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 14:28:51,550 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:51,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:51,550 INFO L85 PathProgramCache]: Analyzing trace with hash 247498593, now seen corresponding path program 1 times [2022-12-14 14:28:51,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:51,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88671628] [2022-12-14 14:28:51,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:51,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:51,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2511 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 2299 trivial. 0 not checked. [2022-12-14 14:28:51,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:51,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88671628] [2022-12-14 14:28:51,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88671628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:51,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:51,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:28:51,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703564334] [2022-12-14 14:28:51,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:51,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:28:51,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:51,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:28:51,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:28:51,997 INFO L87 Difference]: Start difference. First operand 88913 states and 129528 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (77), 4 states have call predecessors, (77), 3 states have call successors, (77) [2022-12-14 14:28:54,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:28:55,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:28:59,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:29:01,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:29:10,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:29:10,638 INFO L93 Difference]: Finished difference Result 177749 states and 258913 transitions. [2022-12-14 14:29:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:29:10,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (77), 4 states have call predecessors, (77), 3 states have call successors, (77) Word has length 656 [2022-12-14 14:29:10,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:29:11,000 INFO L225 Difference]: With dead ends: 177749 [2022-12-14 14:29:11,000 INFO L226 Difference]: Without dead ends: 88865 [2022-12-14 14:29:11,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:29:11,294 INFO L413 NwaCegarLoop]: 3505 mSDtfsCounter, 1531 mSDsluCounter, 9038 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 12543 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:29:11,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 12543 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1218 Invalid, 1 Unknown, 0 Unchecked, 14.4s Time] [2022-12-14 14:29:11,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88865 states. [2022-12-14 14:29:15,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88865 to 83523. [2022-12-14 14:29:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83523 states, 44056 states have (on average 1.219289086617033) internal successors, (53717), 45566 states have internal predecessors, (53717), 33817 states have call successors, (33817), 5671 states have call predecessors, (33817), 5649 states have return successors, (34051), 32839 states have call predecessors, (34051), 33817 states have call successors, (34051) [2022-12-14 14:29:16,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83523 states to 83523 states and 121585 transitions. [2022-12-14 14:29:16,044 INFO L78 Accepts]: Start accepts. Automaton has 83523 states and 121585 transitions. Word has length 656 [2022-12-14 14:29:16,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:29:16,045 INFO L495 AbstractCegarLoop]: Abstraction has 83523 states and 121585 transitions. [2022-12-14 14:29:16,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 4 states have internal predecessors, (196), 3 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (77), 4 states have call predecessors, (77), 3 states have call successors, (77) [2022-12-14 14:29:16,045 INFO L276 IsEmpty]: Start isEmpty. Operand 83523 states and 121585 transitions. [2022-12-14 14:29:16,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2022-12-14 14:29:16,320 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:29:16,320 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 11, 11, 11, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:29:16,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 14:29:16,320 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:29:16,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:29:16,321 INFO L85 PathProgramCache]: Analyzing trace with hash 613278424, now seen corresponding path program 2 times [2022-12-14 14:29:16,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:29:16,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966414484] [2022-12-14 14:29:16,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:29:16,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:29:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:29:16,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2774 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 2481 trivial. 0 not checked. [2022-12-14 14:29:16,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:29:16,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966414484] [2022-12-14 14:29:16,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966414484] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:29:16,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:29:16,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:29:16,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288488126] [2022-12-14 14:29:16,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:29:16,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:29:16,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:29:16,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:29:16,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:29:16,960 INFO L87 Difference]: Start difference. First operand 83523 states and 121585 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 3 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) [2022-12-14 14:29:25,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:29:25,392 INFO L93 Difference]: Finished difference Result 158403 states and 230666 transitions. [2022-12-14 14:29:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:29:25,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 3 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) Word has length 671 [2022-12-14 14:29:25,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:29:25,721 INFO L225 Difference]: With dead ends: 158403 [2022-12-14 14:29:25,722 INFO L226 Difference]: Without dead ends: 69453 [2022-12-14 14:29:26,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:29:26,057 INFO L413 NwaCegarLoop]: 2113 mSDtfsCounter, 2160 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:29:26,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 3057 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 14:29:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69453 states. [2022-12-14 14:29:30,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69453 to 69453. [2022-12-14 14:29:30,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69453 states, 36353 states have (on average 1.2202569251506066) internal successors, (44360), 37585 states have internal predecessors, (44360), 28254 states have call successors, (28254), 4859 states have call predecessors, (28254), 4845 states have return successors, (28488), 27498 states have call predecessors, (28488), 28254 states have call successors, (28488) [2022-12-14 14:29:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69453 states to 69453 states and 101102 transitions. [2022-12-14 14:29:30,607 INFO L78 Accepts]: Start accepts. Automaton has 69453 states and 101102 transitions. Word has length 671 [2022-12-14 14:29:30,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:29:30,608 INFO L495 AbstractCegarLoop]: Abstraction has 69453 states and 101102 transitions. [2022-12-14 14:29:30,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 3 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (85), 3 states have call predecessors, (85), 3 states have call successors, (85) [2022-12-14 14:29:30,608 INFO L276 IsEmpty]: Start isEmpty. Operand 69453 states and 101102 transitions. [2022-12-14 14:29:30,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2022-12-14 14:29:30,831 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:29:30,832 INFO L195 NwaCegarLoop]: trace histogram [52, 24, 22, 22, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:29:30,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 14:29:30,832 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:29:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:29:30,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1912610600, now seen corresponding path program 1 times [2022-12-14 14:29:30,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:29:30,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583509395] [2022-12-14 14:29:30,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:29:30,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:29:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:29:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4893 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 4745 trivial. 0 not checked. [2022-12-14 14:29:31,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:29:31,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583509395] [2022-12-14 14:29:31,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583509395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:29:31,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:29:31,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:29:31,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684174072] [2022-12-14 14:29:31,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:29:31,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:29:31,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:29:31,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:29:31,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:29:31,618 INFO L87 Difference]: Start difference. First operand 69453 states and 101102 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 3 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) [2022-12-14 14:29:33,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:29:35,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:29:44,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:29:44,467 INFO L93 Difference]: Finished difference Result 139446 states and 203378 transitions. [2022-12-14 14:29:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:29:44,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 3 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) Word has length 877 [2022-12-14 14:29:44,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:29:44,981 INFO L225 Difference]: With dead ends: 139446 [2022-12-14 14:29:44,981 INFO L226 Difference]: Without dead ends: 85695 [2022-12-14 14:29:45,153 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 [2022-12-14 14:29:45,154 INFO L413 NwaCegarLoop]: 3884 mSDtfsCounter, 1950 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:29:45,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 5926 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 14:29:45,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85695 states. [2022-12-14 14:29:50,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85695 to 85279. [2022-12-14 14:29:50,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85279 states, 44822 states have (on average 1.2186203203783856) internal successors, (54621), 46341 states have internal predecessors, (54621), 34480 states have call successors, (34480), 5989 states have call predecessors, (34480), 5976 states have return successors, (34790), 33542 states have call predecessors, (34790), 34480 states have call successors, (34790) [2022-12-14 14:29:50,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85279 states to 85279 states and 123891 transitions. [2022-12-14 14:29:50,814 INFO L78 Accepts]: Start accepts. Automaton has 85279 states and 123891 transitions. Word has length 877 [2022-12-14 14:29:50,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:29:50,814 INFO L495 AbstractCegarLoop]: Abstraction has 85279 states and 123891 transitions. [2022-12-14 14:29:50,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 3 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) [2022-12-14 14:29:50,815 INFO L276 IsEmpty]: Start isEmpty. Operand 85279 states and 123891 transitions. [2022-12-14 14:29:51,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 894 [2022-12-14 14:29:51,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:29:51,085 INFO L195 NwaCegarLoop]: trace histogram [52, 26, 22, 22, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:29:51,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 14:29:51,085 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:29:51,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:29:51,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1046516274, now seen corresponding path program 1 times [2022-12-14 14:29:51,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:29:51,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523459174] [2022-12-14 14:29:51,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:29:51,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:29:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:29:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5023 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 4897 trivial. 0 not checked. [2022-12-14 14:29:51,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:29:51,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523459174] [2022-12-14 14:29:51,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523459174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:29:51,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:29:51,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:29:51,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885103350] [2022-12-14 14:29:51,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:29:51,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:29:51,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:29:51,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:29:51,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:29:51,910 INFO L87 Difference]: Start difference. First operand 85279 states and 123891 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 3 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (113), 3 states have call predecessors, (113), 3 states have call successors, (113) [2022-12-14 14:29:53,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:29:55,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:30:00,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:30:03,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:30:09,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:30:09,087 INFO L93 Difference]: Finished difference Result 171318 states and 249220 transitions. [2022-12-14 14:30:09,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:30:09,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 3 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (113), 3 states have call predecessors, (113), 3 states have call successors, (113) Word has length 893 [2022-12-14 14:30:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:30:09,513 INFO L225 Difference]: With dead ends: 171318 [2022-12-14 14:30:09,513 INFO L226 Difference]: Without dead ends: 101741 [2022-12-14 14:30:09,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:30:09,760 INFO L413 NwaCegarLoop]: 3881 mSDtfsCounter, 1998 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 6628 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:30:09,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 6628 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 14:30:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101741 states. [2022-12-14 14:30:15,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101741 to 101325. [2022-12-14 14:30:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101325 states, 53467 states have (on average 1.2176108627751698) internal successors, (65102), 55273 states have internal predecessors, (65102), 40706 states have call successors, (40706), 7163 states have call predecessors, (40706), 7151 states have return successors, (41092), 39586 states have call predecessors, (41092), 40706 states have call successors, (41092) [2022-12-14 14:30:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101325 states to 101325 states and 146900 transitions. [2022-12-14 14:30:16,242 INFO L78 Accepts]: Start accepts. Automaton has 101325 states and 146900 transitions. Word has length 893 [2022-12-14 14:30:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:30:16,242 INFO L495 AbstractCegarLoop]: Abstraction has 101325 states and 146900 transitions. [2022-12-14 14:30:16,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 3 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (113), 3 states have call predecessors, (113), 3 states have call successors, (113) [2022-12-14 14:30:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 101325 states and 146900 transitions. [2022-12-14 14:30:16,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2022-12-14 14:30:16,554 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:30:16,554 INFO L195 NwaCegarLoop]: trace histogram [26, 23, 23, 16, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:30:16,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 14:30:16,554 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:30:16,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:30:16,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1153166863, now seen corresponding path program 1 times [2022-12-14 14:30:16,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:30:16,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926651689] [2022-12-14 14:30:16,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:30:16,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:30:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:30:18,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2299 backedges. 148 proven. 6 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2022-12-14 14:30:18,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:30:18,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926651689] [2022-12-14 14:30:18,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926651689] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:30:18,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523756296] [2022-12-14 14:30:18,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:30:18,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:30:18,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:30:18,444 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:30:18,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422009e8-8eee-46f9-becd-5e4154a6e2ab/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:30:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:30:19,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 7874 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 14:30:19,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:32:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2299 backedges. 774 proven. 1 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2022-12-14 14:32:07,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:32:09,716 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 8191 disjunctions. This might take some time... [2022-12-14 14:32:14,488 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 8191 disjunctions. [2022-12-14 14:32:14,604 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 16383 disjunctions. This might take some time... [2022-12-14 14:32:33,225 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 16383 disjunctions. [2022-12-14 14:32:33,332 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 32767 disjunctions. This might take some time... [2022-12-14 14:33:45,176 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 32767 disjunctions.