./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.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_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/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_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/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_ca40550c-d57b-4b9c-a7db-669f23bbd867/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 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- 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 07:02:44,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:02:44,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:02:44,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:02:44,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:02:44,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:02:44,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:02:44,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:02:44,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:02:44,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:02:44,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:02:44,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:02:44,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:02:44,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:02:44,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:02:44,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:02:44,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:02:44,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:02:44,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:02:44,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:02:44,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:02:44,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:02:44,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:02:44,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:02:44,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:02:44,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:02:44,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:02:44,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:02:44,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:02:44,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:02:44,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:02:44,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:02:44,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:02:44,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:02:44,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:02:44,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:02:44,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:02:44,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:02:44,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:02:44,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:02:44,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:02:45,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:02:45,040 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:02:45,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:02:45,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:02:45,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:02:45,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:02:45,041 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:02:45,041 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:02:45,042 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:02:45,042 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:02:45,042 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:02:45,042 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:02:45,042 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:02:45,042 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:02:45,042 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:02:45,042 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:02:45,043 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:02:45,043 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:02:45,043 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:02:45,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:02:45,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:02:45,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:02:45,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:02:45,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:02:45,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:02:45,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:02:45,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:02:45,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:02:45,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:02:45,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:02:45,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:02:45,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:02:45,045 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:02:45,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:02:45,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:02:45,046 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:02:45,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:02:45,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:02:45,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:02:45,046 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_ca40550c-d57b-4b9c-a7db-669f23bbd867/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2022-12-14 07:02:45,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:02:45,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:02:45,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:02:45,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:02:45,222 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:02:45,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-12-14 07:02:47,823 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:02:48,152 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:02:48,152 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-12-14 07:02:48,172 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/data/83fb3b224/31d5d156c0044bcfb56a2d1d28d1571d/FLAGc08d24c4a [2022-12-14 07:02:48,183 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/data/83fb3b224/31d5d156c0044bcfb56a2d1d28d1571d [2022-12-14 07:02:48,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:02:48,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:02:48,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:02:48,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:02:48,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:02:48,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:02:48" (1/1) ... [2022-12-14 07:02:48,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b40261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:48, skipping insertion in model container [2022-12-14 07:02:48,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:02:48" (1/1) ... [2022-12-14 07:02:48,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:02:48,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:02:48,853 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:02:48,884 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:02:48,894 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:02:48,902 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:02:48,927 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 07:02:49,027 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 07:02:49,068 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 07:02:49,075 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 07:02:49,148 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:02:49,153 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:02:49,154 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 07:02:49,164 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 07:02:49,188 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-12-14 07:02:49,195 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-14 07:02:49,214 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 07:02:49,307 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-12-14 07:02:49,358 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 07:02:49,363 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 07:02:49,497 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,497 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,504 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:02:49,507 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 07:02:49,509 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,510 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,511 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,511 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,512 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,514 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,517 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,519 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,520 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,520 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:02:49,521 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:02:49,529 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,529 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,530 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,531 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,531 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,533 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,536 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,536 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,539 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 07:02:49,539 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 07:02:49,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,563 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,568 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,570 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,577 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:02:49,584 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,591 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,594 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-12-14 07:02:49,595 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,596 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,597 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,598 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,601 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:02:49,606 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-12-14 07:02:49,607 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,608 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,609 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,610 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,610 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,611 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,615 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:02:49,618 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:02:49,619 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 07:02:49,619 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 07:02:49,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,627 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 07:02:49,627 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 07:02:49,628 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 07:02:49,638 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 07:02:49,641 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,644 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,646 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,649 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:49,650 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:49,651 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,651 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,652 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:49,653 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:49,654 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:49,657 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:49,660 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:49,661 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:49,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,663 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,663 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,666 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,667 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,672 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 07:02:49,673 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 07:02:49,677 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:02:49,678 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 07:02:49,679 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:02:49,684 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:02:49,726 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:02:49,727 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:49,727 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:49,727 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:49,728 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:02:49,728 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:02:49,729 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:49,729 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:49,729 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:49,729 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_4 [2022-12-14 07:02:49,730 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_4 [2022-12-14 07:02:49,731 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:49,731 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:49,732 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:49,732 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:02:49,732 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:02:49,733 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:49,733 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:49,734 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:49,734 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_3 [2022-12-14 07:02:49,734 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_3 [2022-12-14 07:02:49,735 WARN L623 FunctionHandler]: Unknown extern function ldv_shutdown_2 [2022-12-14 07:02:49,735 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 07:02:49,738 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 07:02:49,739 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:02:49,739 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 07:02:49,739 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 07:02:49,740 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 07:02:49,740 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 07:02:49,740 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 07:02:49,744 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_ca40550c-d57b-4b9c-a7db-669f23bbd867/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-12-14 07:02:49,766 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 07:02:49,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:02:49,816 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:02:49,915 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:02:49,916 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:02:49,916 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:02:49,917 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:02:49,918 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 07:02:49,920 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 07:02:49,921 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 07:02:49,925 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 07:02:49,932 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:02:49,933 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:02:49,933 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 07:02:49,935 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 07:02:49,936 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-12-14 07:02:49,937 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-14 07:02:49,939 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 07:02:49,941 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-12-14 07:02:49,943 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 07:02:49,943 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 07:02:49,946 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,947 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:49,950 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:02:49,953 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 07:02:49,955 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,957 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,957 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,960 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,961 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,962 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:02:49,962 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:02:49,966 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,967 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,967 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,968 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,968 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,969 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,973 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,973 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,974 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 07:02:49,974 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 07:02:49,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,984 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,989 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:02:49,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,995 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,996 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-12-14 07:02:49,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:49,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,001 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:02:50,004 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-12-14 07:02:50,005 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,005 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,006 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,006 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,007 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:50,007 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:50,009 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:02:50,011 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:02:50,012 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 07:02:50,012 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 07:02:50,014 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,014 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 07:02:50,015 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 07:02:50,015 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 07:02:50,021 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 07:02:50,023 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,027 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,028 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,032 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:50,033 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:50,033 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:50,033 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:50,034 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:50,035 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:50,036 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:50,038 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:50,040 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:50,041 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:02:50,041 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,042 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,042 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,043 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,044 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:02:50,045 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:50,046 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:02:50,046 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 07:02:50,047 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 07:02:50,047 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:02:50,047 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 07:02:50,050 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:02:50,051 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:02:50,056 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:02:50,056 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:50,056 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:50,057 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:50,057 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:02:50,058 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:02:50,058 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:50,059 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:50,059 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:50,059 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_4 [2022-12-14 07:02:50,060 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_4 [2022-12-14 07:02:50,061 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:50,061 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:50,062 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:02:50,062 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:02:50,062 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:02:50,063 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:50,063 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:50,064 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:02:50,064 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_3 [2022-12-14 07:02:50,064 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_3 [2022-12-14 07:02:50,065 WARN L623 FunctionHandler]: Unknown extern function ldv_shutdown_2 [2022-12-14 07:02:50,065 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 07:02:50,067 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 07:02:50,068 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:02:50,069 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 07:02:50,069 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 07:02:50,069 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 07:02:50,069 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 07:02:50,070 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 07:02:50,070 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_ca40550c-d57b-4b9c-a7db-669f23bbd867/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-12-14 07:02:50,071 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 07:02:50,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:02:50,177 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:02:50,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50 WrapperNode [2022-12-14 07:02:50,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:02:50,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:02:50,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:02:50,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:02:50,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,289 INFO L138 Inliner]: procedures = 225, calls = 1464, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 3737 [2022-12-14 07:02:50,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:02:50,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:02:50,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:02:50,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:02:50,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,386 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:02:50,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:02:50,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:02:50,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:02:50,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (1/1) ... [2022-12-14 07:02:50,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:02:50,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:50,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:02:50,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:02:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-12-14 07:02:50,482 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-12-14 07:02:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 07:02:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 07:02:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 07:02:50,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 07:02:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 07:02:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 07:02:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 07:02:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 07:02:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-12-14 07:02:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-12-14 07:02:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:02:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:02:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 07:02:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 07:02:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 07:02:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 07:02:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 07:02:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 07:02:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 07:02:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 07:02:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 07:02:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 07:02:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-12-14 07:02:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-12-14 07:02:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-12-14 07:02:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-12-14 07:02:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-12-14 07:02:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-12-14 07:02:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 07:02:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 07:02:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:02:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 07:02:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-12-14 07:02:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-12-14 07:02:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-12-14 07:02:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-12-14 07:02:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:02:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2022-12-14 07:02:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2022-12-14 07:02:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 07:02:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 07:02:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-12-14 07:02:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-12-14 07:02:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-12-14 07:02:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-12-14 07:02:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 07:02:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 07:02:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 07:02:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 07:02:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:02:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-12-14 07:02:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-12-14 07:02:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:02:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-12-14 07:02:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-12-14 07:02:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-12-14 07:02:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-12-14 07:02:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-12-14 07:02:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-12-14 07:02:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 07:02:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 07:02:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-12-14 07:02:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-12-14 07:02:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 07:02:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 07:02:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 07:02:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 07:02:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-12-14 07:02:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-12-14 07:02:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-12-14 07:02:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-12-14 07:02:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2022-12-14 07:02:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2022-12-14 07:02:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 07:02:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 07:02:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 07:02:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:02:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-12-14 07:02:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-12-14 07:02:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-12-14 07:02:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-12-14 07:02:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:02:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 07:02:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 07:02:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 07:02:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 07:02:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 07:02:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 07:02:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-12-14 07:02:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-12-14 07:02:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-12-14 07:02:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-12-14 07:02:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 07:02:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 07:02:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-12-14 07:02:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-12-14 07:02:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-12-14 07:02:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-12-14 07:02:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 07:02:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 07:02:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-12-14 07:02:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-12-14 07:02:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:02:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 07:02:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 07:02:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2022-12-14 07:02:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2022-12-14 07:02:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-12-14 07:02:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-12-14 07:02:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 07:02:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 07:02:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-12-14 07:02:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-12-14 07:02:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 07:02:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 07:02:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-12-14 07:02:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-12-14 07:02:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-12-14 07:02:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-12-14 07:02:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-12-14 07:02:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-12-14 07:02:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:02:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-12-14 07:02:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-12-14 07:02:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 07:02:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 07:02:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:02:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 07:02:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 07:02:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:02:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 07:02:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-12-14 07:02:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-12-14 07:02:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-12-14 07:02:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-12-14 07:02:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-12-14 07:02:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-12-14 07:02:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-12-14 07:02:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-12-14 07:02:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 07:02:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 07:02:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-12-14 07:02:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-12-14 07:02:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-12-14 07:02:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-12-14 07:02:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-12-14 07:02:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-12-14 07:02:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:02:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-12-14 07:02:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-12-14 07:02:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:02:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:02:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-12-14 07:02:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-12-14 07:02:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-12-14 07:02:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-12-14 07:02:50,956 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:02:50,959 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:02:51,394 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 07:02:53,303 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-14 07:02:53,460 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 2096896 == ~tmp___4~7#1 then ~tmp___4~7#1 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-12-14 07:02:53,460 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 2096896 == ~tmp___4~7#1 then ~tmp___4~7#1 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-12-14 07:02:53,460 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret666#1 && #t~ret666#1 <= 9223372036854775807;havoc #t~ret666#1; [2022-12-14 07:02:53,460 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret666#1 := schedule_timeout_interruptible(1); srcloc: null [2022-12-14 07:02:53,460 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-12-14 07:02:53,460 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-12-14 07:02:53,563 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:02:54,373 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:02:54,373 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-14 07:02:54,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:02:54 BoogieIcfgContainer [2022-12-14 07:02:54,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:02:54,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:02:54,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:02:54,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:02:54,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:02:48" (1/3) ... [2022-12-14 07:02:54,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a396fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:02:54, skipping insertion in model container [2022-12-14 07:02:54,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:50" (2/3) ... [2022-12-14 07:02:54,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a396fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:02:54, skipping insertion in model container [2022-12-14 07:02:54,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:02:54" (3/3) ... [2022-12-14 07:02:54,386 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-12-14 07:02:54,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:02:54,405 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:02:54,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:02:54,484 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;@6268b662, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:02:54,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:02:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 1366 states, 762 states have (on average 1.3648293963254594) internal successors, (1040), 816 states have internal predecessors, (1040), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) [2022-12-14 07:02:54,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 07:02:54,516 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:54,517 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 07:02:54,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:54,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:54,522 INFO L85 PathProgramCache]: Analyzing trace with hash -612323602, now seen corresponding path program 1 times [2022-12-14 07:02:54,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:54,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959818661] [2022-12-14 07:02:54,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:54,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-12-14 07:02:55,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:55,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959818661] [2022-12-14 07:02:55,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959818661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:02:55,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:02:55,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:02:55,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731261912] [2022-12-14 07:02:55,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:55,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:02:55,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:55,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:02:55,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:02:55,265 INFO L87 Difference]: Start difference. First operand has 1366 states, 762 states have (on average 1.3648293963254594) internal successors, (1040), 816 states have internal predecessors, (1040), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 07:02:57,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:57,458 INFO L93 Difference]: Finished difference Result 4042 states and 6298 transitions. [2022-12-14 07:02:57,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:02:57,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 130 [2022-12-14 07:02:57,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:57,484 INFO L225 Difference]: With dead ends: 4042 [2022-12-14 07:02:57,484 INFO L226 Difference]: Without dead ends: 2671 [2022-12-14 07:02:57,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:02:57,499 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 2056 mSDsluCounter, 7634 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 10494 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:57,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 10494 Invalid, 654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 07:02:57,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2022-12-14 07:02:57,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2657. [2022-12-14 07:02:57,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 1484 states have (on average 1.355121293800539) internal successors, (2011), 1578 states have internal predecessors, (2011), 1037 states have call successors, (1037), 137 states have call predecessors, (1037), 135 states have return successors, (1036), 997 states have call predecessors, (1036), 1036 states have call successors, (1036) [2022-12-14 07:02:57,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 4084 transitions. [2022-12-14 07:02:57,712 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 4084 transitions. Word has length 130 [2022-12-14 07:02:57,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:57,713 INFO L495 AbstractCegarLoop]: Abstraction has 2657 states and 4084 transitions. [2022-12-14 07:02:57,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 07:02:57,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 4084 transitions. [2022-12-14 07:02:57,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-14 07:02:57,719 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:57,719 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 07:02:57,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:02:57,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:57,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1655093945, now seen corresponding path program 1 times [2022-12-14 07:02:57,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:57,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125792477] [2022-12-14 07:02:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:57,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-12-14 07:02:58,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:58,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125792477] [2022-12-14 07:02:58,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125792477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:02:58,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:02:58,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:02:58,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449577017] [2022-12-14 07:02:58,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:58,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:02:58,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:58,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:02:58,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:02:58,095 INFO L87 Difference]: Start difference. First operand 2657 states and 4084 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 07:03:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:00,391 INFO L93 Difference]: Finished difference Result 5560 states and 8485 transitions. [2022-12-14 07:03:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:03:00,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2022-12-14 07:03:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:00,432 INFO L225 Difference]: With dead ends: 5560 [2022-12-14 07:03:00,433 INFO L226 Difference]: Without dead ends: 3989 [2022-12-14 07:03:00,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:03:00,448 INFO L413 NwaCegarLoop]: 2728 mSDtfsCounter, 2030 mSDsluCounter, 7348 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 10076 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:00,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 10076 Invalid, 649 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 07:03:00,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3989 states. [2022-12-14 07:03:00,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3989 to 3970. [2022-12-14 07:03:00,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3970 states, 2220 states have (on average 1.3558558558558558) internal successors, (3010), 2359 states have internal predecessors, (3010), 1547 states have call successors, (1547), 205 states have call predecessors, (1547), 202 states have return successors, (1546), 1489 states have call predecessors, (1546), 1546 states have call successors, (1546) [2022-12-14 07:03:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 6103 transitions. [2022-12-14 07:03:00,663 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 6103 transitions. Word has length 131 [2022-12-14 07:03:00,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:00,663 INFO L495 AbstractCegarLoop]: Abstraction has 3970 states and 6103 transitions. [2022-12-14 07:03:00,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 07:03:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 6103 transitions. [2022-12-14 07:03:00,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-14 07:03:00,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:00,668 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:03:00,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:03:00,669 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:00,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:00,669 INFO L85 PathProgramCache]: Analyzing trace with hash -723168111, now seen corresponding path program 1 times [2022-12-14 07:03:00,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:00,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578197883] [2022-12-14 07:03:00,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:00,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:00,957 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-12-14 07:03:00,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:00,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578197883] [2022-12-14 07:03:00,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578197883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:00,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:00,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:03:00,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709070039] [2022-12-14 07:03:00,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:00,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:03:00,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:00,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:03:00,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:03:00,959 INFO L87 Difference]: Start difference. First operand 3970 states and 6103 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 07:03:03,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:03,960 INFO L93 Difference]: Finished difference Result 6878 states and 10506 transitions. [2022-12-14 07:03:03,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:03:03,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2022-12-14 07:03:03,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:03,982 INFO L225 Difference]: With dead ends: 6878 [2022-12-14 07:03:03,982 INFO L226 Difference]: Without dead ends: 3993 [2022-12-14 07:03:04,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:03:04,001 INFO L413 NwaCegarLoop]: 2724 mSDtfsCounter, 2028 mSDsluCounter, 7340 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2032 SdHoareTripleChecker+Valid, 10064 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:04,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2032 Valid, 10064 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 07:03:04,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2022-12-14 07:03:04,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3974. [2022-12-14 07:03:04,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3974 states, 2224 states have (on average 1.3552158273381294) internal successors, (3014), 2362 states have internal predecessors, (3014), 1546 states have call successors, (1546), 206 states have call predecessors, (1546), 203 states have return successors, (1545), 1489 states have call predecessors, (1545), 1545 states have call successors, (1545) [2022-12-14 07:03:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3974 states to 3974 states and 6105 transitions. [2022-12-14 07:03:04,350 INFO L78 Accepts]: Start accepts. Automaton has 3974 states and 6105 transitions. Word has length 132 [2022-12-14 07:03:04,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:04,351 INFO L495 AbstractCegarLoop]: Abstraction has 3974 states and 6105 transitions. [2022-12-14 07:03:04,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 07:03:04,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3974 states and 6105 transitions. [2022-12-14 07:03:04,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 07:03:04,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:04,362 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 07:03:04,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:03:04,362 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:04,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:04,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1294797066, now seen corresponding path program 1 times [2022-12-14 07:03:04,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:04,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5200887] [2022-12-14 07:03:04,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:04,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:04,723 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-12-14 07:03:04,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:04,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5200887] [2022-12-14 07:03:04,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5200887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:04,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:04,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:03:04,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651342353] [2022-12-14 07:03:04,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:04,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:03:04,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:04,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:03:04,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:03:04,725 INFO L87 Difference]: Start difference. First operand 3974 states and 6105 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 07:03:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:06,797 INFO L93 Difference]: Finished difference Result 6749 states and 10307 transitions. [2022-12-14 07:03:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:03:06,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2022-12-14 07:03:06,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:06,810 INFO L225 Difference]: With dead ends: 6749 [2022-12-14 07:03:06,810 INFO L226 Difference]: Without dead ends: 3859 [2022-12-14 07:03:06,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:03:06,818 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2026 mSDsluCounter, 7342 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 10067 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:06,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 10067 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 07:03:06,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2022-12-14 07:03:07,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3843. [2022-12-14 07:03:07,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 2145 states have (on average 1.3552447552447553) internal successors, (2907), 2276 states have internal predecessors, (2907), 1500 states have call successors, (1500), 200 states have call predecessors, (1500), 197 states have return successors, (1499), 1444 states have call predecessors, (1499), 1499 states have call successors, (1499) [2022-12-14 07:03:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 5906 transitions. [2022-12-14 07:03:07,071 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 5906 transitions. Word has length 133 [2022-12-14 07:03:07,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:07,071 INFO L495 AbstractCegarLoop]: Abstraction has 3843 states and 5906 transitions. [2022-12-14 07:03:07,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 07:03:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 5906 transitions. [2022-12-14 07:03:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-14 07:03:07,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:07,078 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 07:03:07,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:03:07,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:07,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:07,080 INFO L85 PathProgramCache]: Analyzing trace with hash -257664161, now seen corresponding path program 1 times [2022-12-14 07:03:07,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:07,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055998394] [2022-12-14 07:03:07,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:07,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:07,527 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-14 07:03:07,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:07,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055998394] [2022-12-14 07:03:07,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055998394] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:03:07,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929667092] [2022-12-14 07:03:07,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:07,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:07,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:07,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:07,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:03:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:08,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:03:08,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-12-14 07:03:08,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:03:08,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929667092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:08,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:03:08,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-12-14 07:03:08,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587799641] [2022-12-14 07:03:08,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:08,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:03:08,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:08,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:03:08,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:03:08,195 INFO L87 Difference]: Start difference. First operand 3843 states and 5906 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-14 07:03:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:09,162 INFO L93 Difference]: Finished difference Result 6513 states and 10009 transitions. [2022-12-14 07:03:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:03:09,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2022-12-14 07:03:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:09,179 INFO L225 Difference]: With dead ends: 6513 [2022-12-14 07:03:09,179 INFO L226 Difference]: Without dead ends: 3861 [2022-12-14 07:03:09,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:03:09,189 INFO L413 NwaCegarLoop]: 1929 mSDtfsCounter, 7 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:09,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3849 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 07:03:09,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2022-12-14 07:03:09,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3845. [2022-12-14 07:03:09,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 2147 states have (on average 1.3549138332557056) internal successors, (2909), 2278 states have internal predecessors, (2909), 1500 states have call successors, (1500), 200 states have call predecessors, (1500), 197 states have return successors, (1499), 1444 states have call predecessors, (1499), 1499 states have call successors, (1499) [2022-12-14 07:03:09,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 5908 transitions. [2022-12-14 07:03:09,462 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 5908 transitions. Word has length 143 [2022-12-14 07:03:09,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:09,462 INFO L495 AbstractCegarLoop]: Abstraction has 3845 states and 5908 transitions. [2022-12-14 07:03:09,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-14 07:03:09,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 5908 transitions. [2022-12-14 07:03:09,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-14 07:03:09,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:09,469 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 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] [2022-12-14 07:03:09,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:03:09,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:09,670 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:09,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:09,672 INFO L85 PathProgramCache]: Analyzing trace with hash 705942418, now seen corresponding path program 1 times [2022-12-14 07:03:09,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:09,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630315571] [2022-12-14 07:03:09,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:09,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:09,844 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:03:09,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589383133] [2022-12-14 07:03:09,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:09,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:09,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:09,846 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:09,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:03:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:10,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:03:10,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-14 07:03:10,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:03:10,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:10,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630315571] [2022-12-14 07:03:10,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:03:10,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589383133] [2022-12-14 07:03:10,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589383133] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:10,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:10,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:03:10,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583465310] [2022-12-14 07:03:10,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:10,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:03:10,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:10,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:03:10,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:03:10,444 INFO L87 Difference]: Start difference. First operand 3845 states and 5908 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:03:16,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:03:16,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:16,314 INFO L93 Difference]: Finished difference Result 9031 states and 13869 transitions. [2022-12-14 07:03:16,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:03:16,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2022-12-14 07:03:16,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:16,340 INFO L225 Difference]: With dead ends: 9031 [2022-12-14 07:03:16,340 INFO L226 Difference]: Without dead ends: 6377 [2022-12-14 07:03:16,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-14 07:03:16,350 INFO L413 NwaCegarLoop]: 2865 mSDtfsCounter, 2062 mSDsluCounter, 13358 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 16223 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:16,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 16223 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1128 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 07:03:16,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6377 states. [2022-12-14 07:03:16,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6377 to 6344. [2022-12-14 07:03:16,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6344 states, 3543 states have (on average 1.3567598080722552) internal successors, (4807), 3765 states have internal predecessors, (4807), 2474 states have call successors, (2474), 329 states have call predecessors, (2474), 326 states have return successors, (2478), 2377 states have call predecessors, (2478), 2473 states have call successors, (2478) [2022-12-14 07:03:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6344 states to 6344 states and 9759 transitions. [2022-12-14 07:03:16,691 INFO L78 Accepts]: Start accepts. Automaton has 6344 states and 9759 transitions. Word has length 147 [2022-12-14 07:03:16,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:16,691 INFO L495 AbstractCegarLoop]: Abstraction has 6344 states and 9759 transitions. [2022-12-14 07:03:16,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:03:16,692 INFO L276 IsEmpty]: Start isEmpty. Operand 6344 states and 9759 transitions. [2022-12-14 07:03:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-14 07:03:16,700 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:16,700 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 07:03:16,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:03:16,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:16,901 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:16,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:16,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1163397022, now seen corresponding path program 1 times [2022-12-14 07:03:16,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:16,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593807333] [2022-12-14 07:03:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:16,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:16,952 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:03:16,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [233671963] [2022-12-14 07:03:16,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:16,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:16,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:16,953 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:16,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:03:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:17,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 2232 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:03:17,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:17,532 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-14 07:03:17,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:03:17,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:17,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593807333] [2022-12-14 07:03:17,533 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:03:17,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233671963] [2022-12-14 07:03:17,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233671963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:17,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:17,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:03:17,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979107740] [2022-12-14 07:03:17,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:17,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:03:17,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:17,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:03:17,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:03:17,535 INFO L87 Difference]: Start difference. First operand 6344 states and 9759 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:03:22,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:03:22,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:22,822 INFO L93 Difference]: Finished difference Result 14040 states and 21581 transitions. [2022-12-14 07:03:22,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:03:22,822 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2022-12-14 07:03:22,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:22,848 INFO L225 Difference]: With dead ends: 14040 [2022-12-14 07:03:22,849 INFO L226 Difference]: Without dead ends: 8887 [2022-12-14 07:03:22,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-14 07:03:22,864 INFO L413 NwaCegarLoop]: 3112 mSDtfsCounter, 2062 mSDsluCounter, 14334 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 17446 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:22,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 17446 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 07:03:22,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8887 states. [2022-12-14 07:03:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8887 to 8848. [2022-12-14 07:03:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8848 states, 4942 states have (on average 1.3573452043707002) internal successors, (6708), 5258 states have internal predecessors, (6708), 3448 states have call successors, (3448), 458 states have call predecessors, (3448), 457 states have return successors, (3460), 3309 states have call predecessors, (3460), 3447 states have call successors, (3460) [2022-12-14 07:03:23,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8848 states to 8848 states and 13616 transitions. [2022-12-14 07:03:23,408 INFO L78 Accepts]: Start accepts. Automaton has 8848 states and 13616 transitions. Word has length 148 [2022-12-14 07:03:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:23,408 INFO L495 AbstractCegarLoop]: Abstraction has 8848 states and 13616 transitions. [2022-12-14 07:03:23,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:03:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 8848 states and 13616 transitions. [2022-12-14 07:03:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-14 07:03:23,437 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:23,437 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 07:03:23,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:03:23,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:23,637 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:23,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:23,638 INFO L85 PathProgramCache]: Analyzing trace with hash 379429593, now seen corresponding path program 1 times [2022-12-14 07:03:23,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:23,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555154384] [2022-12-14 07:03:23,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:23,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:23,738 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:03:23,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116819034] [2022-12-14 07:03:23,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:23,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:23,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:23,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:23,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:03:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:24,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 2234 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:03:24,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:24,358 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-14 07:03:24,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:03:24,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:24,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555154384] [2022-12-14 07:03:24,359 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:03:24,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116819034] [2022-12-14 07:03:24,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116819034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:24,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:24,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:03:24,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604257260] [2022-12-14 07:03:24,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:24,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:03:24,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:24,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:03:24,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:03:24,361 INFO L87 Difference]: Start difference. First operand 8848 states and 13616 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:03:28,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:28,658 INFO L93 Difference]: Finished difference Result 19046 states and 29291 transitions. [2022-12-14 07:03:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:03:28,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2022-12-14 07:03:28,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:28,706 INFO L225 Difference]: With dead ends: 19046 [2022-12-14 07:03:28,706 INFO L226 Difference]: Without dead ends: 11389 [2022-12-14 07:03:28,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-14 07:03:28,727 INFO L413 NwaCegarLoop]: 2944 mSDtfsCounter, 2062 mSDsluCounter, 13662 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 16606 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:28,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 16606 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 07:03:28,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11389 states. [2022-12-14 07:03:29,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11389 to 8849. [2022-12-14 07:03:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8849 states, 4943 states have (on average 1.357272911187538) internal successors, (6709), 5258 states have internal predecessors, (6709), 3448 states have call successors, (3448), 458 states have call predecessors, (3448), 457 states have return successors, (3460), 3310 states have call predecessors, (3460), 3447 states have call successors, (3460) [2022-12-14 07:03:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8849 states to 8849 states and 13617 transitions. [2022-12-14 07:03:29,282 INFO L78 Accepts]: Start accepts. Automaton has 8849 states and 13617 transitions. Word has length 149 [2022-12-14 07:03:29,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:29,282 INFO L495 AbstractCegarLoop]: Abstraction has 8849 states and 13617 transitions. [2022-12-14 07:03:29,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:03:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 8849 states and 13617 transitions. [2022-12-14 07:03:29,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-14 07:03:29,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:29,293 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-14 07:03:29,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:03:29,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:29,494 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:29,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:29,494 INFO L85 PathProgramCache]: Analyzing trace with hash -233915195, now seen corresponding path program 1 times [2022-12-14 07:03:29,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:29,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731552904] [2022-12-14 07:03:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:29,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:29,572 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:03:29,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662842308] [2022-12-14 07:03:29,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:29,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:29,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:29,574 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:29,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:03:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:30,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 2236 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:03:30,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:30,139 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-14 07:03:30,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:03:30,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:30,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731552904] [2022-12-14 07:03:30,140 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:03:30,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662842308] [2022-12-14 07:03:30,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662842308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:30,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:30,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:03:30,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698791908] [2022-12-14 07:03:30,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:30,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:03:30,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:30,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:03:30,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:03:30,142 INFO L87 Difference]: Start difference. First operand 8849 states and 13617 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:03:36,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 07:03:36,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:36,349 INFO L93 Difference]: Finished difference Result 19049 states and 29294 transitions. [2022-12-14 07:03:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:03:36,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2022-12-14 07:03:36,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:36,384 INFO L225 Difference]: With dead ends: 19049 [2022-12-14 07:03:36,384 INFO L226 Difference]: Without dead ends: 11391 [2022-12-14 07:03:36,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-12-14 07:03:36,405 INFO L413 NwaCegarLoop]: 3119 mSDtfsCounter, 2062 mSDsluCounter, 14362 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 17481 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:36,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 17481 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1160 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 07:03:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2022-12-14 07:03:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 8850. [2022-12-14 07:03:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8850 states, 4944 states have (on average 1.3572006472491909) internal successors, (6710), 5258 states have internal predecessors, (6710), 3448 states have call successors, (3448), 458 states have call predecessors, (3448), 457 states have return successors, (3460), 3311 states have call predecessors, (3460), 3447 states have call successors, (3460) [2022-12-14 07:03:36,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8850 states to 8850 states and 13618 transitions. [2022-12-14 07:03:36,947 INFO L78 Accepts]: Start accepts. Automaton has 8850 states and 13618 transitions. Word has length 150 [2022-12-14 07:03:36,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:36,947 INFO L495 AbstractCegarLoop]: Abstraction has 8850 states and 13618 transitions. [2022-12-14 07:03:36,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 07:03:36,947 INFO L276 IsEmpty]: Start isEmpty. Operand 8850 states and 13618 transitions. [2022-12-14 07:03:36,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-14 07:03:36,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:36,957 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-12-14 07:03:36,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 07:03:37,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 07:03:37,158 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:37,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:37,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1492072592, now seen corresponding path program 1 times [2022-12-14 07:03:37,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:37,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790114980] [2022-12-14 07:03:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:37,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:37,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:37,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790114980] [2022-12-14 07:03:37,286 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 07:03:37,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024379202] [2022-12-14 07:03:37,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:37,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:37,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:37,287 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:37,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 07:03:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:37,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 2459 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:03:37,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-12-14 07:03:37,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:03:37,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024379202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:37,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:37,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:03:37,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240567574] [2022-12-14 07:03:37,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:37,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:03:37,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:37,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:03:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:03:37,811 INFO L87 Difference]: Start difference. First operand 8850 states and 13618 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 07:03:39,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:39,282 INFO L93 Difference]: Finished difference Result 25769 states and 39618 transitions. [2022-12-14 07:03:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:03:39,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 157 [2022-12-14 07:03:39,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:39,338 INFO L225 Difference]: With dead ends: 25769 [2022-12-14 07:03:39,338 INFO L226 Difference]: Without dead ends: 16938 [2022-12-14 07:03:39,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 07:03:39,365 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 1887 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 SdHoareTripleChecker+Valid, 4206 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:39,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1887 Valid, 4206 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 07:03:39,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16938 states. [2022-12-14 07:03:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16938 to 16914. [2022-12-14 07:03:40,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16914 states, 9449 states have (on average 1.350089956609165) internal successors, (12757), 10071 states have internal predecessors, (12757), 6551 states have call successors, (6551), 914 states have call predecessors, (6551), 913 states have return successors, (6576), 6277 states have call predecessors, (6576), 6550 states have call successors, (6576) [2022-12-14 07:03:40,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16914 states to 16914 states and 25884 transitions. [2022-12-14 07:03:40,213 INFO L78 Accepts]: Start accepts. Automaton has 16914 states and 25884 transitions. Word has length 157 [2022-12-14 07:03:40,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:40,213 INFO L495 AbstractCegarLoop]: Abstraction has 16914 states and 25884 transitions. [2022-12-14 07:03:40,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 07:03:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand 16914 states and 25884 transitions. [2022-12-14 07:03:40,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-14 07:03:40,221 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:40,221 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:03:40,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-14 07:03:40,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:40,423 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:40,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:40,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1660942539, now seen corresponding path program 1 times [2022-12-14 07:03:40,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:40,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404933775] [2022-12-14 07:03:40,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:40,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:40,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:40,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404933775] [2022-12-14 07:03:40,509 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 07:03:40,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498897160] [2022-12-14 07:03:40,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:40,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:40,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:40,511 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:40,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 07:03:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:41,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 2459 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:03:41,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-12-14 07:03:41,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:03:41,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498897160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:41,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:41,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:03:41,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564692452] [2022-12-14 07:03:41,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:41,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:03:41,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:41,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:03:41,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:03:41,093 INFO L87 Difference]: Start difference. First operand 16914 states and 25884 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 07:03:42,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:42,084 INFO L93 Difference]: Finished difference Result 30879 states and 47224 transitions. [2022-12-14 07:03:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:03:42,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 157 [2022-12-14 07:03:42,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:42,135 INFO L225 Difference]: With dead ends: 30879 [2022-12-14 07:03:42,135 INFO L226 Difference]: Without dead ends: 13984 [2022-12-14 07:03:42,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 07:03:42,193 INFO L413 NwaCegarLoop]: 1728 mSDtfsCounter, 1862 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:42,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 1728 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 07:03:42,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13984 states. [2022-12-14 07:03:42,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13984 to 13984. [2022-12-14 07:03:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13984 states, 7989 states have (on average 1.334710226561522) internal successors, (10663), 8505 states have internal predecessors, (10663), 5220 states have call successors, (5220), 769 states have call predecessors, (5220), 774 states have return successors, (5245), 5020 states have call predecessors, (5245), 5219 states have call successors, (5245) [2022-12-14 07:03:42,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13984 states to 13984 states and 21128 transitions. [2022-12-14 07:03:42,875 INFO L78 Accepts]: Start accepts. Automaton has 13984 states and 21128 transitions. Word has length 157 [2022-12-14 07:03:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:42,875 INFO L495 AbstractCegarLoop]: Abstraction has 13984 states and 21128 transitions. [2022-12-14 07:03:42,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 07:03:42,876 INFO L276 IsEmpty]: Start isEmpty. Operand 13984 states and 21128 transitions. [2022-12-14 07:03:42,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-14 07:03:42,877 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:42,878 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 07:03:42,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 07:03:43,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:43,080 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:43,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1501810811, now seen corresponding path program 1 times [2022-12-14 07:03:43,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:43,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687754472] [2022-12-14 07:03:43,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:43,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:43,166 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:03:43,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262805985] [2022-12-14 07:03:43,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:43,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:43,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:43,167 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:43,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca40550c-d57b-4b9c-a7db-669f23bbd867/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 07:03:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:43,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 2303 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 07:03:43,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-12-14 07:03:43,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:03:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-12-14 07:03:43,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:43,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687754472] [2022-12-14 07:03:43,905 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:03:43,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262805985] [2022-12-14 07:03:43,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262805985] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:03:43,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2128837141] [2022-12-14 07:03:43,925 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-12-14 07:03:43,926 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:03:43,929 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:03:43,933 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:03:43,933 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:03:45,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-12-14 07:03:45,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-12-14 07:03:45,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-12-14 07:03:46,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:46,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:46,060 INFO L217 Elim1Store]: Index analysis took 129 ms [2022-12-14 07:03:51,826 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 959 DAG size of output: 479 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 07:03:51,828 INFO L321 Elim1Store]: treesize reduction 2264, result has 25.5 percent of original size [2022-12-14 07:03:51,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 63 select indices, 63 select index equivalence classes, 1834 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 180 case distinctions, treesize of input 329 treesize of output 981 [2022-12-14 07:03:52,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-12-14 07:03:52,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:52,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:52,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 60 select indices, 60 select index equivalence classes, 1893 disjoint index pairs (out of 1770 index pairs), introduced 60 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 491 [2022-12-14 07:03:53,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-12-14 07:03:53,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-12-14 07:03:53,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-12-14 07:03:57,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 07:03:57,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 07:03:57,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-14 07:03:59,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:59,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:03:59,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 63 select indices, 63 select index equivalence classes, 1953 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 190 [2022-12-14 07:04:00,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,157 INFO L217 Elim1Store]: Index analysis took 111 ms [2022-12-14 07:04:00,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 113 select indices, 113 select index equivalence classes, 1300 disjoint index pairs (out of 6328 index pairs), introduced 113 new quantified variables, introduced 0 case distinctions, treesize of input 902 treesize of output 340 [2022-12-14 07:04:00,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:00,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1893 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-12-14 07:04:06,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:06,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:06,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 63 select indices, 63 select index equivalence classes, 1953 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 190 [2022-12-14 07:04:07,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1893 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-12-14 07:04:07,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:07,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 113 select indices, 113 select index equivalence classes, 1300 disjoint index pairs (out of 6328 index pairs), introduced 113 new quantified variables, introduced 0 case distinctions, treesize of input 902 treesize of output 340 [2022-12-14 07:04:13,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:04:13,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:04:13,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:04:16,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:04:17,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:04:17,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:04:49,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:04:49,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:04:49,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:04:50,703 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:04:50,707 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:04:50,722 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:05:11,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:05:11,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:05:11,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:05:12,430 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:05:12,445 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:05:12,461 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:05:18,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:05:18,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:05:18,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:05:21,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:05:21,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:05:22,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:05:28,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:05:28,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:05:28,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:05:31,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:05:32,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:05:32,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:07:26,667 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 1408 for LOIs [2022-12-14 07:07:36,953 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 114 for LOIs [2022-12-14 07:07:36,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 07:07:36,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 07:07:37,290 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 135 for LOIs [2022-12-14 07:07:37,300 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 140 for LOIs [2022-12-14 07:07:37,329 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 1408 for LOIs [2022-12-14 07:07:40,691 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:08:29,395 WARN L233 SmtUtils]: Spent 48.26s on a formula simplification. DAG size of input: 2039 DAG size of output: 1807 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:00,299 WARN L233 SmtUtils]: Spent 26.72s on a formula simplification. DAG size of input: 1478 DAG size of output: 1470 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:25,985 WARN L233 SmtUtils]: Spent 25.05s on a formula simplification. DAG size of input: 1481 DAG size of output: 1473 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:10:12,087 WARN L233 SmtUtils]: Spent 45.20s on a formula simplification. DAG size of input: 1614 DAG size of output: 1506 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:10:54,842 WARN L233 SmtUtils]: Spent 41.79s on a formula simplification. DAG size of input: 1618 DAG size of output: 1497 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:11:23,518 WARN L233 SmtUtils]: Spent 27.54s on a formula simplification. DAG size of input: 1514 DAG size of output: 1499 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:11:51,432 WARN L233 SmtUtils]: Spent 27.06s on a formula simplification. DAG size of input: 1517 DAG size of output: 1502 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:12:20,056 WARN L233 SmtUtils]: Spent 27.72s on a formula simplification. DAG size of input: 1532 DAG size of output: 1513 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:12:49,235 WARN L233 SmtUtils]: Spent 28.20s on a formula simplification. DAG size of input: 1535 DAG size of output: 1516 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:13:37,652 WARN L233 SmtUtils]: Spent 47.03s on a formula simplification. DAG size of input: 1674 DAG size of output: 1543 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:14:27,229 WARN L233 SmtUtils]: Spent 48.23s on a formula simplification. DAG size of input: 1678 DAG size of output: 1545 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:14:48,997 WARN L233 SmtUtils]: Spent 20.39s on a formula simplification. DAG size of input: 1408 DAG size of output: 1357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:15:12,095 WARN L233 SmtUtils]: Spent 21.66s on a formula simplification. DAG size of input: 1416 DAG size of output: 1365 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:15:35,510 WARN L233 SmtUtils]: Spent 22.02s on a formula simplification. DAG size of input: 1408 DAG size of output: 1357 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:15:59,298 WARN L233 SmtUtils]: Spent 22.33s on a formula simplification. DAG size of input: 1410 DAG size of output: 1359 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:15:59,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2128837141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:15:59,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:15:59,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [10, 10] total 37 [2022-12-14 07:15:59,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299456994] [2022-12-14 07:15:59,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:15:59,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-14 07:15:59,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:15:59,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-14 07:15:59,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1212, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 07:15:59,344 INFO L87 Difference]: Start difference. First operand 13984 states and 21128 transitions. Second operand has 27 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 10 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (19), 8 states have call predecessors, (19), 10 states have call successors, (19)