./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.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_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b2aee7f7e67804021e49e5736bb0f9c1b2e215c216274214a3b77fa62ce19be --- 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 [2022-12-13 18:59:39,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:59:39,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:59:39,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:59:39,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:59:39,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:59:39,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:59:39,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:59:39,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:59:39,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:59:39,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:59:39,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:59:39,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:59:39,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:59:39,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:59:39,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:59:39,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:59:39,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:59:39,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:59:39,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:59:39,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:59:39,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:59:39,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:59:39,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:59:39,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:59:39,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:59:39,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:59:39,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:59:39,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:59:39,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:59:39,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:59:39,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:59:39,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:59:39,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:59:39,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:59:39,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:59:39,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:59:39,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:59:39,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:59:39,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:59:39,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:59:39,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 18:59:39,693 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:59:39,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:59:39,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:59:39,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:59:39,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:59:39,694 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:59:39,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:59:39,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:59:39,695 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:59:39,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:59:39,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:59:39,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:59:39,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:59:39,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:59:39,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:59:39,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:59:39,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:59:39,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:59:39,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:59:39,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:59:39,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:59:39,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:59:39,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:59:39,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:59:39,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:59:39,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:59:39,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:59:39,698 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:59:39,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:59:39,698 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:59:39,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:59:39,698 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:59:39,698 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b2aee7f7e67804021e49e5736bb0f9c1b2e215c216274214a3b77fa62ce19be [2022-12-13 18:59:39,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:59:39,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:59:39,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:59:39,872 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:59:39,872 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:59:39,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2022-12-13 18:59:42,394 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:59:42,712 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:59:42,713 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2022-12-13 18:59:42,745 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/data/c3b3b2855/a39dae3930514440a748a67ff1a312e2/FLAG9440f288d [2022-12-13 18:59:42,943 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/data/c3b3b2855/a39dae3930514440a748a67ff1a312e2 [2022-12-13 18:59:42,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:59:42,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:59:42,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:59:42,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:59:42,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:59:42,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:59:42" (1/1) ... [2022-12-13 18:59:42,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b1a266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:42, skipping insertion in model container [2022-12-13 18:59:42,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:59:42" (1/1) ... [2022-12-13 18:59:42,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:59:43,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:59:43,435 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-13 18:59:43,442 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-13 18:59:43,468 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-13 18:59:43,475 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-13 18:59:43,664 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:43,706 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_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[182154,182167] [2022-12-13 18:59:43,768 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-13 18:59:43,859 WARN L623 FunctionHandler]: Unknown extern function lbs_host_to_card_done [2022-12-13 18:59:43,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,861 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,862 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:43,862 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:43,863 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 18:59:43,863 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,869 WARN L623 FunctionHandler]: Unknown extern function __lbs_cmd [2022-12-13 18:59:43,870 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,871 WARN L623 FunctionHandler]: Unknown extern function lbs_host_sleep_cfg [2022-12-13 18:59:43,872 WARN L623 FunctionHandler]: Unknown extern function __lbs_cmd [2022-12-13 18:59:43,872 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 18:59:43,873 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,875 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 18:59:43,879 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,880 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,881 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 18:59:43,886 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 18:59:43,887 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,890 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,892 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,894 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,895 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,897 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,899 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,900 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,903 WARN L623 FunctionHandler]: Unknown extern function lbs_add_card [2022-12-13 18:59:43,905 WARN L623 FunctionHandler]: Unknown extern function lbs_get_firmware_async [2022-12-13 18:59:43,906 WARN L623 FunctionHandler]: Unknown extern function lbs_remove_card [2022-12-13 18:59:43,910 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,912 WARN L623 FunctionHandler]: Unknown extern function lbs_stop_card [2022-12-13 18:59:43,912 WARN L623 FunctionHandler]: Unknown extern function lbs_remove_card [2022-12-13 18:59:43,913 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,923 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 18:59:43,923 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-12-13 18:59:43,923 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 18:59:43,924 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,928 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,934 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,935 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,940 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,941 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,942 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 18:59:43,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,944 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,945 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,946 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,947 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,948 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,948 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,949 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,950 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,951 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,951 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-12-13 18:59:43,952 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,953 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,953 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,954 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,955 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 18:59:43,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,960 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,960 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 18:59:43,960 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-13 18:59:43,961 WARN L623 FunctionHandler]: Unknown extern function lbs_process_rxed_packet [2022-12-13 18:59:43,964 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,965 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,967 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,967 WARN L623 FunctionHandler]: Unknown extern function lbs_notify_command_response [2022-12-13 18:59:43,968 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,987 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,989 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,991 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,992 WARN L623 FunctionHandler]: Unknown extern function lbs_send_tx_feedback [2022-12-13 18:59:43,992 WARN L623 FunctionHandler]: Unknown extern function lbs_queue_event [2022-12-13 18:59:43,992 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,993 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:43,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,995 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:43,996 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,004 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,005 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,006 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,007 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,008 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,008 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,009 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,010 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-12-13 18:59:44,010 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,010 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,012 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-12-13 18:59:44,012 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 18:59:44,012 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 18:59:44,013 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,013 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,013 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,014 WARN L623 FunctionHandler]: Unknown extern function lbs_start_card [2022-12-13 18:59:44,014 WARN L623 FunctionHandler]: Unknown extern function lbs_host_sleep_cfg [2022-12-13 18:59:44,014 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 18:59:44,015 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,019 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,020 WARN L623 FunctionHandler]: Unknown extern function lbs_suspend [2022-12-13 18:59:44,020 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,020 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,021 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,025 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,026 WARN L623 FunctionHandler]: Unknown extern function lbs_resume [2022-12-13 18:59:44,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,047 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 18:59:44,049 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-13 18:59:44,051 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-13 18:59:44,052 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-13 18:59:44,052 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 18:59:44,052 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 18:59:44,059 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,066 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,080 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,081 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,082 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,082 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,085 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:59:44,104 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:59:44,192 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-13 18:59:44,192 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-13 18:59:44,193 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-13 18:59:44,193 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-13 18:59:44,196 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,198 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_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[182154,182167] [2022-12-13 18:59:44,199 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-13 18:59:44,201 WARN L623 FunctionHandler]: Unknown extern function lbs_host_to_card_done [2022-12-13 18:59:44,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,202 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,202 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,203 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,203 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 18:59:44,203 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,205 WARN L623 FunctionHandler]: Unknown extern function __lbs_cmd [2022-12-13 18:59:44,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,206 WARN L623 FunctionHandler]: Unknown extern function lbs_host_sleep_cfg [2022-12-13 18:59:44,206 WARN L623 FunctionHandler]: Unknown extern function __lbs_cmd [2022-12-13 18:59:44,206 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 18:59:44,207 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,208 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 18:59:44,208 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,209 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,209 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 18:59:44,210 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 18:59:44,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,212 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,215 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,216 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,217 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,219 WARN L623 FunctionHandler]: Unknown extern function lbs_add_card [2022-12-13 18:59:44,232 WARN L623 FunctionHandler]: Unknown extern function lbs_get_firmware_async [2022-12-13 18:59:44,233 WARN L623 FunctionHandler]: Unknown extern function lbs_remove_card [2022-12-13 18:59:44,233 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,234 WARN L623 FunctionHandler]: Unknown extern function lbs_stop_card [2022-12-13 18:59:44,234 WARN L623 FunctionHandler]: Unknown extern function lbs_remove_card [2022-12-13 18:59:44,235 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,237 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,238 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 18:59:44,238 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-12-13 18:59:44,238 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 18:59:44,238 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,239 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,241 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,242 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,242 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,243 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,244 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,245 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,245 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,246 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 18:59:44,246 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,247 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,247 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,249 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,249 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,249 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,250 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,250 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,251 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-12-13 18:59:44,251 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,251 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,252 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,252 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,253 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 18:59:44,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,254 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,254 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 18:59:44,254 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-13 18:59:44,254 WARN L623 FunctionHandler]: Unknown extern function lbs_process_rxed_packet [2022-12-13 18:59:44,255 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,256 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,257 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,257 WARN L623 FunctionHandler]: Unknown extern function lbs_notify_command_response [2022-12-13 18:59:44,257 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,258 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,260 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,260 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,261 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,261 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,262 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,262 WARN L623 FunctionHandler]: Unknown extern function lbs_send_tx_feedback [2022-12-13 18:59:44,262 WARN L623 FunctionHandler]: Unknown extern function lbs_queue_event [2022-12-13 18:59:44,262 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,263 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 18:59:44,263 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,264 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,265 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,267 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,267 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,282 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,283 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,283 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,284 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,284 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,285 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-12-13 18:59:44,286 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,286 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,287 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-12-13 18:59:44,288 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 18:59:44,289 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 18:59:44,289 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,289 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,290 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,290 WARN L623 FunctionHandler]: Unknown extern function lbs_start_card [2022-12-13 18:59:44,290 WARN L623 FunctionHandler]: Unknown extern function lbs_host_sleep_cfg [2022-12-13 18:59:44,291 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 18:59:44,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,293 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,293 WARN L623 FunctionHandler]: Unknown extern function lbs_suspend [2022-12-13 18:59:44,294 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,294 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 18:59:44,294 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,295 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,296 WARN L623 FunctionHandler]: Unknown extern function lbs_resume [2022-12-13 18:59:44,296 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 18:59:44,303 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 18:59:44,305 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-13 18:59:44,308 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-13 18:59:44,308 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-13 18:59:44,309 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 18:59:44,309 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 18:59:44,310 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,312 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,315 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,319 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,321 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,321 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,324 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 18:59:44,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:59:44,359 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:59:44,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44 WrapperNode [2022-12-13 18:59:44,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:59:44,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:59:44,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:59:44,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:59:44,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,470 INFO L138 Inliner]: procedures = 174, calls = 1356, calls flagged for inlining = 82, calls inlined = 66, statements flattened = 2485 [2022-12-13 18:59:44,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:59:44,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:59:44,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:59:44,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:59:44,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,563 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:59:44,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:59:44,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:59:44,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:59:44,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (1/1) ... [2022-12-13 18:59:44,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:59:44,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:59:44,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:59:44,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:59:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_reset_device [2022-12-13 18:59:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_reset_device [2022-12-13 18:59:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_resume [2022-12-13 18:59:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_resume [2022-12-13 18:59:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 18:59:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-13 18:59:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-13 18:59:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2022-12-13 18:59:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2022-12-13 18:59:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 18:59:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 18:59:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-13 18:59:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-13 18:59:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:59:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-12-13 18:59:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-12-13 18:59:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-12-13 18:59:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-12-13 18:59:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 18:59:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 18:59:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-13 18:59:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-13 18:59:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 18:59:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 18:59:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-12-13 18:59:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-12-13 18:59:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb_fwload [2022-12-13 18:59:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb_fwload [2022-12-13 18:59:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-13 18:59:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-13 18:59:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-12-13 18:59:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-12-13 18:59:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb [2022-12-13 18:59:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb [2022-12-13 18:59:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive_fwload [2022-12-13 18:59:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive_fwload [2022-12-13 18:59:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-13 18:59:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-13 18:59:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_send_fw_pkt [2022-12-13 18:59:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_send_fw_pkt [2022-12-13 18:59:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure __if_usb_submit_rx_urb [2022-12-13 18:59:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __if_usb_submit_rx_urb [2022-12-13 18:59:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:59:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-13 18:59:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-13 18:59:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_free [2022-12-13 18:59:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_free [2022-12-13 18:59:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 18:59:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 18:59:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 18:59:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 18:59:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 18:59:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 18:59:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 18:59:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-12-13 18:59:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-12-13 18:59:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_disconnect [2022-12-13 18:59:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_disconnect [2022-12-13 18:59:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_block [2022-12-13 18:59:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_block [2022-12-13 18:59:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:59:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-12-13 18:59:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-12-13 18:59:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2022-12-13 18:59:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2022-12-13 18:59:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-13 18:59:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-13 18:59:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:59:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 18:59:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-13 18:59:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 18:59:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 18:59:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2022-12-13 18:59:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2022-12-13 18:59:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-12-13 18:59:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-12-13 18:59:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 18:59:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2022-12-13 18:59:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2022-12-13 18:59:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-13 18:59:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-13 18:59:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-12-13 18:59:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-12-13 18:59:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2022-12-13 18:59:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2022-12-13 18:59:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:59:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 18:59:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-12-13 18:59:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-12-13 18:59:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_card [2022-12-13 18:59:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_card [2022-12-13 18:59:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-13 18:59:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-13 18:59:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-12-13 18:59:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-12-13 18:59:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive [2022-12-13 18:59:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive [2022-12-13 18:59:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-12-13 18:59:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-12-13 18:59:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:59:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-12-13 18:59:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-12-13 18:59:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 18:59:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-13 18:59:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-13 18:59:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:59:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:59:45,059 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:59:45,063 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:59:45,298 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-13 18:59:45,925 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-12-13 18:59:46,598 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:59:46,606 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:59:46,616 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:59:46,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:59:46 BoogieIcfgContainer [2022-12-13 18:59:46,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:59:46,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:59:46,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:59:46,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:59:46,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:59:42" (1/3) ... [2022-12-13 18:59:46,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66107cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:59:46, skipping insertion in model container [2022-12-13 18:59:46,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:44" (2/3) ... [2022-12-13 18:59:46,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66107cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:59:46, skipping insertion in model container [2022-12-13 18:59:46,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:59:46" (3/3) ... [2022-12-13 18:59:46,629 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2022-12-13 18:59:46,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:59:46,646 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 18:59:46,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:59:46,728 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31b473f6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:59:46,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 18:59:46,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 750 states, 527 states have (on average 1.3567362428842504) internal successors, (715), 557 states have internal predecessors, (715), 178 states have call successors, (178), 45 states have call predecessors, (178), 43 states have return successors, (172), 166 states have call predecessors, (172), 172 states have call successors, (172) [2022-12-13 18:59:46,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 18:59:46,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:59:46,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:59:46,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:59:46,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:59:46,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1782780063, now seen corresponding path program 1 times [2022-12-13 18:59:46,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:59:46,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521406151] [2022-12-13 18:59:46,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:59:46,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:59:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:47,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:59:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 18:59:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:47,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:59:47,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:59:47,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521406151] [2022-12-13 18:59:47,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521406151] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:59:47,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:59:47,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:59:47,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590538052] [2022-12-13 18:59:47,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:59:47,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:59:47,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:59:47,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:59:47,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:59:47,275 INFO L87 Difference]: Start difference. First operand has 750 states, 527 states have (on average 1.3567362428842504) internal successors, (715), 557 states have internal predecessors, (715), 178 states have call successors, (178), 45 states have call predecessors, (178), 43 states have return successors, (172), 166 states have call predecessors, (172), 172 states have call successors, (172) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:59:50,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:59:50,409 INFO L93 Difference]: Finished difference Result 2529 states and 3735 transitions. [2022-12-13 18:59:50,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:59:50,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-12-13 18:59:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:59:50,428 INFO L225 Difference]: With dead ends: 2529 [2022-12-13 18:59:50,428 INFO L226 Difference]: Without dead ends: 1756 [2022-12-13 18:59:50,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:59:50,441 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 2158 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 1145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1145 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:59:50,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2269 Valid, 2687 Invalid, 2726 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1145 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 18:59:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2022-12-13 18:59:50,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1433. [2022-12-13 18:59:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1013 states have (on average 1.3405725567620927) internal successors, (1358), 1053 states have internal predecessors, (1358), 336 states have call successors, (336), 84 states have call predecessors, (336), 83 states have return successors, (331), 319 states have call predecessors, (331), 331 states have call successors, (331) [2022-12-13 18:59:50,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2025 transitions. [2022-12-13 18:59:50,553 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2025 transitions. Word has length 29 [2022-12-13 18:59:50,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:59:50,553 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 2025 transitions. [2022-12-13 18:59:50,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:59:50,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2025 transitions. [2022-12-13 18:59:50,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-13 18:59:50,556 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:59:50,556 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 18:59:50,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:59:50,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:59:50,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:59:50,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1459439698, now seen corresponding path program 1 times [2022-12-13 18:59:50,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:59:50,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210697846] [2022-12-13 18:59:50,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:59:50,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:59:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:50,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:59:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:50,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 18:59:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:50,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 18:59:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:59:50,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:59:50,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210697846] [2022-12-13 18:59:50,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210697846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:59:50,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:59:50,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:59:50,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564215620] [2022-12-13 18:59:50,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:59:50,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:59:50,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:59:50,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:59:50,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:59:50,707 INFO L87 Difference]: Start difference. First operand 1433 states and 2025 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 18:59:52,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:59:52,187 INFO L93 Difference]: Finished difference Result 1782 states and 2557 transitions. [2022-12-13 18:59:52,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:59:52,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-12-13 18:59:52,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:59:52,198 INFO L225 Difference]: With dead ends: 1782 [2022-12-13 18:59:52,198 INFO L226 Difference]: Without dead ends: 1769 [2022-12-13 18:59:52,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:59:52,201 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 1606 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 675 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 675 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:59:52,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 1634 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [675 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 18:59:52,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2022-12-13 18:59:52,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1433. [2022-12-13 18:59:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1013 states have (on average 1.3395853899308983) internal successors, (1357), 1053 states have internal predecessors, (1357), 336 states have call successors, (336), 84 states have call predecessors, (336), 83 states have return successors, (331), 319 states have call predecessors, (331), 331 states have call successors, (331) [2022-12-13 18:59:52,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2024 transitions. [2022-12-13 18:59:52,310 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2024 transitions. Word has length 39 [2022-12-13 18:59:52,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:59:52,311 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 2024 transitions. [2022-12-13 18:59:52,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 18:59:52,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2024 transitions. [2022-12-13 18:59:52,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-13 18:59:52,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:59:52,313 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 18:59:52,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:59:52,314 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:59:52,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:59:52,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1516698000, now seen corresponding path program 1 times [2022-12-13 18:59:52,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:59:52,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728556746] [2022-12-13 18:59:52,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:59:52,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:59:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:52,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:59:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 18:59:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:52,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 18:59:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:59:52,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:59:52,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728556746] [2022-12-13 18:59:52,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728556746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:59:52,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:59:52,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:59:52,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900534716] [2022-12-13 18:59:52,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:59:52,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:59:52,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:59:52,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:59:52,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:59:52,719 INFO L87 Difference]: Start difference. First operand 1433 states and 2024 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 18:59:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:59:55,506 INFO L93 Difference]: Finished difference Result 4901 states and 7229 transitions. [2022-12-13 18:59:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:59:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-12-13 18:59:55,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:59:55,530 INFO L225 Difference]: With dead ends: 4901 [2022-12-13 18:59:55,530 INFO L226 Difference]: Without dead ends: 3487 [2022-12-13 18:59:55,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:59:55,536 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 2239 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 1139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 2684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1139 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 18:59:55,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2335 Valid, 2641 Invalid, 2684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1139 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 18:59:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2022-12-13 18:59:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 2986. [2022-12-13 18:59:55,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2119 states have (on average 1.335063709296838) internal successors, (2829), 2195 states have internal predecessors, (2829), 678 states have call successors, (678), 165 states have call predecessors, (678), 188 states have return successors, (793), 669 states have call predecessors, (793), 673 states have call successors, (793) [2022-12-13 18:59:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 4300 transitions. [2022-12-13 18:59:55,672 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 4300 transitions. Word has length 39 [2022-12-13 18:59:55,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:59:55,673 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 4300 transitions. [2022-12-13 18:59:55,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 18:59:55,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 4300 transitions. [2022-12-13 18:59:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-13 18:59:55,676 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:59:55,676 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:59:55,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:59:55,676 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:59:55,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:59:55,677 INFO L85 PathProgramCache]: Analyzing trace with hash -227405644, now seen corresponding path program 1 times [2022-12-13 18:59:55,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:59:55,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436566603] [2022-12-13 18:59:55,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:59:55,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:59:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:59:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:55,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 18:59:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 18:59:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:55,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:59:55,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:59:55,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436566603] [2022-12-13 18:59:55,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436566603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:59:55,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:59:55,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:59:55,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001270892] [2022-12-13 18:59:55,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:59:55,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:59:55,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:59:55,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:59:55,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:59:55,975 INFO L87 Difference]: Start difference. First operand 2986 states and 4300 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 18:59:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:59:58,536 INFO L93 Difference]: Finished difference Result 9888 states and 14915 transitions. [2022-12-13 18:59:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:59:58,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-12-13 18:59:58,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:59:58,565 INFO L225 Difference]: With dead ends: 9888 [2022-12-13 18:59:58,565 INFO L226 Difference]: Without dead ends: 6921 [2022-12-13 18:59:58,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:59:58,575 INFO L413 NwaCegarLoop]: 978 mSDtfsCounter, 2242 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 1162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2345 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1162 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:59:58,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2345 Valid, 2533 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1162 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 18:59:58,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6921 states. [2022-12-13 18:59:58,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6921 to 6085. [2022-12-13 18:59:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 4324 states have (on average 1.3304810360777057) internal successors, (5753), 4472 states have internal predecessors, (5753), 1362 states have call successors, (1362), 327 states have call predecessors, (1362), 398 states have return successors, (1817), 1369 states have call predecessors, (1817), 1357 states have call successors, (1817) [2022-12-13 18:59:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 8932 transitions. [2022-12-13 18:59:58,839 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 8932 transitions. Word has length 40 [2022-12-13 18:59:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:59:58,839 INFO L495 AbstractCegarLoop]: Abstraction has 6085 states and 8932 transitions. [2022-12-13 18:59:58,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 18:59:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 8932 transitions. [2022-12-13 18:59:58,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-13 18:59:58,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:59:58,841 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 18:59:58,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:59:58,841 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:59:58,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:59:58,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1539961107, now seen corresponding path program 1 times [2022-12-13 18:59:58,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:59:58,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532550006] [2022-12-13 18:59:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:59:58,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:59:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:58,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:59:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:59,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 18:59:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 18:59:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:59:59,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:59:59,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532550006] [2022-12-13 18:59:59,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532550006] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:59:59,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:59:59,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:59:59,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495847662] [2022-12-13 18:59:59,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:59:59,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:59:59,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:59:59,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:59:59,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:59:59,037 INFO L87 Difference]: Start difference. First operand 6085 states and 8932 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:00:01,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:01,477 INFO L93 Difference]: Finished difference Result 6919 states and 10282 transitions. [2022-12-13 19:00:01,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:00:01,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-12-13 19:00:01,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:01,502 INFO L225 Difference]: With dead ends: 6919 [2022-12-13 19:00:01,502 INFO L226 Difference]: Without dead ends: 6916 [2022-12-13 19:00:01,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:00:01,504 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 2242 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2345 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 2673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:01,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2345 Valid, 2524 Invalid, 2673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 1520 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 19:00:01,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6916 states. [2022-12-13 19:00:01,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6916 to 6086. [2022-12-13 19:00:01,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6086 states, 4325 states have (on average 1.3304046242774565) internal successors, (5754), 4473 states have internal predecessors, (5754), 1362 states have call successors, (1362), 327 states have call predecessors, (1362), 398 states have return successors, (1817), 1369 states have call predecessors, (1817), 1357 states have call successors, (1817) [2022-12-13 19:00:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 8933 transitions. [2022-12-13 19:00:01,789 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 8933 transitions. Word has length 41 [2022-12-13 19:00:01,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:01,790 INFO L495 AbstractCegarLoop]: Abstraction has 6086 states and 8933 transitions. [2022-12-13 19:00:01,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:00:01,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 8933 transitions. [2022-12-13 19:00:01,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-13 19:00:01,791 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:01,791 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 19:00:01,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:00:01,791 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:01,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:01,791 INFO L85 PathProgramCache]: Analyzing trace with hash 493760407, now seen corresponding path program 1 times [2022-12-13 19:00:01,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:01,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101079949] [2022-12-13 19:00:01,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:01,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:01,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:01,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:01,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 19:00:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:00:01,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:01,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101079949] [2022-12-13 19:00:01,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101079949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:01,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:01,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:00:01,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851595415] [2022-12-13 19:00:01,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:01,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:00:01,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:01,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:00:01,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:00:01,919 INFO L87 Difference]: Start difference. First operand 6086 states and 8933 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:00:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:03,496 INFO L93 Difference]: Finished difference Result 6915 states and 10278 transitions. [2022-12-13 19:00:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:00:03,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-12-13 19:00:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:03,531 INFO L225 Difference]: With dead ends: 6915 [2022-12-13 19:00:03,532 INFO L226 Difference]: Without dead ends: 6912 [2022-12-13 19:00:03,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:00:03,537 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 1585 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:03,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 1576 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [669 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 19:00:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6912 states. [2022-12-13 19:00:03,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6912 to 6085. [2022-12-13 19:00:03,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 4325 states have (on average 1.3301734104046243) internal successors, (5753), 4472 states have internal predecessors, (5753), 1361 states have call successors, (1361), 327 states have call predecessors, (1361), 398 states have return successors, (1817), 1369 states have call predecessors, (1817), 1357 states have call successors, (1817) [2022-12-13 19:00:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 8931 transitions. [2022-12-13 19:00:03,881 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 8931 transitions. Word has length 42 [2022-12-13 19:00:03,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:03,882 INFO L495 AbstractCegarLoop]: Abstraction has 6085 states and 8931 transitions. [2022-12-13 19:00:03,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:00:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 8931 transitions. [2022-12-13 19:00:03,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 19:00:03,883 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:03,883 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:03,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:00:03,884 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:03,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:03,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1873685354, now seen corresponding path program 1 times [2022-12-13 19:00:03,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:03,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829739849] [2022-12-13 19:00:03,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:03,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:03,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 19:00:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:04,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:00:04,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:04,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829739849] [2022-12-13 19:00:04,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829739849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:04,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:04,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:00:04,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255821431] [2022-12-13 19:00:04,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:04,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:00:04,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:04,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:00:04,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:00:04,013 INFO L87 Difference]: Start difference. First operand 6085 states and 8931 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:00:05,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:05,407 INFO L93 Difference]: Finished difference Result 6914 states and 10276 transitions. [2022-12-13 19:00:05,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:00:05,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2022-12-13 19:00:05,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:05,427 INFO L225 Difference]: With dead ends: 6914 [2022-12-13 19:00:05,427 INFO L226 Difference]: Without dead ends: 6902 [2022-12-13 19:00:05,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:00:05,430 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 1580 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:05,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 1573 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 19:00:05,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6902 states. [2022-12-13 19:00:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6902 to 6075. [2022-12-13 19:00:05,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6075 states, 4316 states have (on average 1.329935125115848) internal successors, (5740), 4462 states have internal predecessors, (5740), 1360 states have call successors, (1360), 327 states have call predecessors, (1360), 398 states have return successors, (1817), 1369 states have call predecessors, (1817), 1357 states have call successors, (1817) [2022-12-13 19:00:05,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6075 states to 6075 states and 8917 transitions. [2022-12-13 19:00:05,702 INFO L78 Accepts]: Start accepts. Automaton has 6075 states and 8917 transitions. Word has length 43 [2022-12-13 19:00:05,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:05,703 INFO L495 AbstractCegarLoop]: Abstraction has 6075 states and 8917 transitions. [2022-12-13 19:00:05,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:00:05,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6075 states and 8917 transitions. [2022-12-13 19:00:05,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 19:00:05,710 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:05,710 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:05,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:00:05,711 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:05,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:05,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1836418368, now seen corresponding path program 1 times [2022-12-13 19:00:05,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:05,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691716660] [2022-12-13 19:00:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:05,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 19:00:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 19:00:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 19:00:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:00:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 19:00:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:06,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:06,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:06,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:00:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:06,036 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 19:00:06,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:06,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691716660] [2022-12-13 19:00:06,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691716660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:06,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:06,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 19:00:06,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463514883] [2022-12-13 19:00:06,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:06,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 19:00:06,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:06,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 19:00:06,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:00:06,038 INFO L87 Difference]: Start difference. First operand 6075 states and 8917 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 19:00:08,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:08,701 INFO L93 Difference]: Finished difference Result 14644 states and 21643 transitions. [2022-12-13 19:00:08,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 19:00:08,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2022-12-13 19:00:08,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:08,725 INFO L225 Difference]: With dead ends: 14644 [2022-12-13 19:00:08,725 INFO L226 Difference]: Without dead ends: 8588 [2022-12-13 19:00:08,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-12-13 19:00:08,739 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 2974 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 2183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3038 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 3807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2183 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:08,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3038 Valid, 2724 Invalid, 3807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2183 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 19:00:08,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8588 states. [2022-12-13 19:00:09,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8588 to 7239. [2022-12-13 19:00:09,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7239 states, 5161 states have (on average 1.326487114900213) internal successors, (6846), 5339 states have internal predecessors, (6846), 1550 states have call successors, (1550), 352 states have call predecessors, (1550), 527 states have return successors, (2169), 1643 states have call predecessors, (2169), 1547 states have call successors, (2169) [2022-12-13 19:00:09,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7239 states to 7239 states and 10565 transitions. [2022-12-13 19:00:09,187 INFO L78 Accepts]: Start accepts. Automaton has 7239 states and 10565 transitions. Word has length 143 [2022-12-13 19:00:09,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:09,187 INFO L495 AbstractCegarLoop]: Abstraction has 7239 states and 10565 transitions. [2022-12-13 19:00:09,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 19:00:09,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7239 states and 10565 transitions. [2022-12-13 19:00:09,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 19:00:09,197 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:09,197 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:09,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 19:00:09,197 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:09,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:09,198 INFO L85 PathProgramCache]: Analyzing trace with hash 747404625, now seen corresponding path program 1 times [2022-12-13 19:00:09,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:09,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285349297] [2022-12-13 19:00:09,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:09,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 19:00:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 19:00:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 19:00:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 19:00:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:00:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 19:00:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 19:00:09,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:09,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285349297] [2022-12-13 19:00:09,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285349297] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:09,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:09,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 19:00:09,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553987837] [2022-12-13 19:00:09,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:09,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 19:00:09,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:09,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 19:00:09,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:00:09,515 INFO L87 Difference]: Start difference. First operand 7239 states and 10565 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 19:00:12,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:12,728 INFO L93 Difference]: Finished difference Result 15788 states and 23271 transitions. [2022-12-13 19:00:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:00:12,729 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2022-12-13 19:00:12,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:12,752 INFO L225 Difference]: With dead ends: 15788 [2022-12-13 19:00:12,752 INFO L226 Difference]: Without dead ends: 8572 [2022-12-13 19:00:12,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:00:12,766 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 1706 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 2174 mSolverCounterSat, 1248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 3422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1248 IncrementalHoareTripleChecker+Valid, 2174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:12,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 3495 Invalid, 3422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1248 Valid, 2174 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 19:00:12,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8572 states. [2022-12-13 19:00:13,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8572 to 7247. [2022-12-13 19:00:13,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7247 states, 5169 states have (on average 1.3259818146643452) internal successors, (6854), 5347 states have internal predecessors, (6854), 1550 states have call successors, (1550), 352 states have call predecessors, (1550), 527 states have return successors, (2169), 1643 states have call predecessors, (2169), 1547 states have call successors, (2169) [2022-12-13 19:00:13,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7247 states to 7247 states and 10573 transitions. [2022-12-13 19:00:13,158 INFO L78 Accepts]: Start accepts. Automaton has 7247 states and 10573 transitions. Word has length 152 [2022-12-13 19:00:13,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:13,158 INFO L495 AbstractCegarLoop]: Abstraction has 7247 states and 10573 transitions. [2022-12-13 19:00:13,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 19:00:13,159 INFO L276 IsEmpty]: Start isEmpty. Operand 7247 states and 10573 transitions. [2022-12-13 19:00:13,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 19:00:13,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:13,168 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:13,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 19:00:13,168 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:13,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:13,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1634627471, now seen corresponding path program 1 times [2022-12-13 19:00:13,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:13,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893716804] [2022-12-13 19:00:13,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:13,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 19:00:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 19:00:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 19:00:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 19:00:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:00:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 19:00:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:13,939 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 19:00:13,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:13,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893716804] [2022-12-13 19:00:13,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893716804] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:00:13,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23619347] [2022-12-13 19:00:13,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:13,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:13,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:00:13,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:00:13,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:00:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:14,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 19:00:14,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:00:14,505 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 19:00:14,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:00:14,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23619347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:14,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:00:14,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-12-13 19:00:14,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593581716] [2022-12-13 19:00:14,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:14,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:00:14,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:14,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:00:14,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:00:14,507 INFO L87 Difference]: Start difference. First operand 7247 states and 10573 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 19:00:14,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:14,992 INFO L93 Difference]: Finished difference Result 14701 states and 21497 transitions. [2022-12-13 19:00:14,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:00:14,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2022-12-13 19:00:14,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:15,010 INFO L225 Difference]: With dead ends: 14701 [2022-12-13 19:00:15,010 INFO L226 Difference]: Without dead ends: 7477 [2022-12-13 19:00:15,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:00:15,023 INFO L413 NwaCegarLoop]: 1169 mSDtfsCounter, 223 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:15,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 2016 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:00:15,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7477 states. [2022-12-13 19:00:15,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7477 to 7247. [2022-12-13 19:00:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7247 states, 5169 states have (on average 1.3244341265235056) internal successors, (6846), 5339 states have internal predecessors, (6846), 1550 states have call successors, (1550), 352 states have call predecessors, (1550), 527 states have return successors, (2169), 1643 states have call predecessors, (2169), 1547 states have call successors, (2169) [2022-12-13 19:00:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7247 states to 7247 states and 10565 transitions. [2022-12-13 19:00:15,390 INFO L78 Accepts]: Start accepts. Automaton has 7247 states and 10565 transitions. Word has length 152 [2022-12-13 19:00:15,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:15,390 INFO L495 AbstractCegarLoop]: Abstraction has 7247 states and 10565 transitions. [2022-12-13 19:00:15,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 19:00:15,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7247 states and 10565 transitions. [2022-12-13 19:00:15,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-13 19:00:15,397 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:15,397 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:15,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:00:15,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 19:00:15,598 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:15,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:15,598 INFO L85 PathProgramCache]: Analyzing trace with hash -796703472, now seen corresponding path program 1 times [2022-12-13 19:00:15,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:15,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386071515] [2022-12-13 19:00:15,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:15,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 19:00:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 19:00:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 19:00:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 19:00:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 19:00:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:00:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 19:00:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 19:00:16,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:16,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386071515] [2022-12-13 19:00:16,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386071515] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:00:16,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171800759] [2022-12-13 19:00:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:16,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:16,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:00:16,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:00:16,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:00:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:16,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-13 19:00:16,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:00:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 19:00:17,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:00:17,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171800759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:17,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:00:17,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 23 [2022-12-13 19:00:17,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055367834] [2022-12-13 19:00:17,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:17,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 19:00:17,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:17,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 19:00:17,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2022-12-13 19:00:17,089 INFO L87 Difference]: Start difference. First operand 7247 states and 10565 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 19:00:18,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:18,396 INFO L93 Difference]: Finished difference Result 23673 states and 34941 transitions. [2022-12-13 19:00:18,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 19:00:18,397 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2022-12-13 19:00:18,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:18,441 INFO L225 Difference]: With dead ends: 23673 [2022-12-13 19:00:18,441 INFO L226 Difference]: Without dead ends: 16449 [2022-12-13 19:00:18,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=1138, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 19:00:18,459 INFO L413 NwaCegarLoop]: 1341 mSDtfsCounter, 1513 mSDsluCounter, 12897 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 14238 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:18,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 14238 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:00:18,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16449 states. [2022-12-13 19:00:19,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16449 to 7311. [2022-12-13 19:00:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 5221 states have (on average 1.321202834705995) internal successors, (6898), 5387 states have internal predecessors, (6898), 1550 states have call successors, (1550), 352 states have call predecessors, (1550), 539 states have return successors, (2217), 1659 states have call predecessors, (2217), 1547 states have call successors, (2217) [2022-12-13 19:00:19,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 10665 transitions. [2022-12-13 19:00:19,026 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 10665 transitions. Word has length 157 [2022-12-13 19:00:19,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:19,026 INFO L495 AbstractCegarLoop]: Abstraction has 7311 states and 10665 transitions. [2022-12-13 19:00:19,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 19:00:19,027 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 10665 transitions. [2022-12-13 19:00:19,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 19:00:19,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:19,032 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:19,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:00:19,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 19:00:19,234 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:19,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1329675430, now seen corresponding path program 1 times [2022-12-13 19:00:19,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:19,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208891573] [2022-12-13 19:00:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:19,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 19:00:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 19:00:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 19:00:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 19:00:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 19:00:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:00:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 19:00:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:19,907 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 19:00:19,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:19,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208891573] [2022-12-13 19:00:19,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208891573] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:00:19,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864282593] [2022-12-13 19:00:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:19,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:19,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:00:19,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:00:19,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:00:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:20,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 2861 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 19:00:20,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:00:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 19:00:20,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:00:20,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864282593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:20,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:00:20,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2022-12-13 19:00:20,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98333156] [2022-12-13 19:00:20,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:20,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:00:20,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:00:20,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-12-13 19:00:20,422 INFO L87 Difference]: Start difference. First operand 7311 states and 10665 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 19:00:20,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:20,986 INFO L93 Difference]: Finished difference Result 14604 states and 21311 transitions. [2022-12-13 19:00:20,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:00:20,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2022-12-13 19:00:20,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:21,007 INFO L225 Difference]: With dead ends: 14604 [2022-12-13 19:00:21,007 INFO L226 Difference]: Without dead ends: 7312 [2022-12-13 19:00:21,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-12-13 19:00:21,022 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 2 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:21,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3076 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:00:21,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2022-12-13 19:00:21,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7312. [2022-12-13 19:00:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7312 states, 5222 states have (on average 1.3211413251627728) internal successors, (6899), 5388 states have internal predecessors, (6899), 1550 states have call successors, (1550), 352 states have call predecessors, (1550), 539 states have return successors, (2217), 1659 states have call predecessors, (2217), 1547 states have call successors, (2217) [2022-12-13 19:00:21,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 10666 transitions. [2022-12-13 19:00:21,459 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 10666 transitions. Word has length 163 [2022-12-13 19:00:21,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:21,459 INFO L495 AbstractCegarLoop]: Abstraction has 7312 states and 10666 transitions. [2022-12-13 19:00:21,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 19:00:21,459 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 10666 transitions. [2022-12-13 19:00:21,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-13 19:00:21,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:21,465 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:21,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 19:00:21,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:21,666 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1018686141, now seen corresponding path program 1 times [2022-12-13 19:00:21,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:21,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951325985] [2022-12-13 19:00:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:21,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 19:00:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 19:00:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 19:00:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 19:00:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:00:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 19:00:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,341 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 19:00:22,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:22,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951325985] [2022-12-13 19:00:22,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951325985] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:00:22,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835993573] [2022-12-13 19:00:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:22,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:22,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:00:22,343 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:00:22,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 19:00:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:22,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 2876 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-13 19:00:22,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:00:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 19:00:22,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:00:22,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835993573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:22,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:00:22,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2022-12-13 19:00:22,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561845737] [2022-12-13 19:00:22,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:22,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:00:22,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:22,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:00:22,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-12-13 19:00:22,959 INFO L87 Difference]: Start difference. First operand 7312 states and 10666 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 19:00:23,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:23,449 INFO L93 Difference]: Finished difference Result 14900 states and 21802 transitions. [2022-12-13 19:00:23,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:00:23,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 164 [2022-12-13 19:00:23,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:23,472 INFO L225 Difference]: With dead ends: 14900 [2022-12-13 19:00:23,472 INFO L226 Difference]: Without dead ends: 7612 [2022-12-13 19:00:23,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-12-13 19:00:23,487 INFO L413 NwaCegarLoop]: 1170 mSDtfsCounter, 227 mSDsluCounter, 4345 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 5515 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:23,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 5515 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:00:23,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7612 states. [2022-12-13 19:00:23,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7612 to 7352. [2022-12-13 19:00:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7352 states, 5254 states have (on average 1.3207080319756377) internal successors, (6939), 5412 states have internal predecessors, (6939), 1558 states have call successors, (1558), 352 states have call predecessors, (1558), 539 states have return successors, (2225), 1675 states have call predecessors, (2225), 1555 states have call successors, (2225) [2022-12-13 19:00:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 10722 transitions. [2022-12-13 19:00:23,920 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 10722 transitions. Word has length 164 [2022-12-13 19:00:23,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:23,920 INFO L495 AbstractCegarLoop]: Abstraction has 7352 states and 10722 transitions. [2022-12-13 19:00:23,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 19:00:23,921 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 10722 transitions. [2022-12-13 19:00:23,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-12-13 19:00:23,926 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:23,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:23,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 19:00:24,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:24,128 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:24,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:24,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1879769671, now seen corresponding path program 2 times [2022-12-13 19:00:24,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:24,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18188407] [2022-12-13 19:00:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:24,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 19:00:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 19:00:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 19:00:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 19:00:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 19:00:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:24,764 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-13 19:00:24,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:24,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18188407] [2022-12-13 19:00:24,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18188407] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:00:24,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979372186] [2022-12-13 19:00:24,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:00:24,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:24,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:00:24,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:00:24,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 19:00:25,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:00:25,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:00:25,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 2902 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 19:00:25,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:00:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 19:00:25,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:00:25,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979372186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:25,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:00:25,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-12-13 19:00:25,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658973256] [2022-12-13 19:00:25,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:25,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:00:25,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:25,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:00:25,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-12-13 19:00:25,509 INFO L87 Difference]: Start difference. First operand 7352 states and 10722 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 19:00:26,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:26,065 INFO L93 Difference]: Finished difference Result 14696 states and 21958 transitions. [2022-12-13 19:00:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:00:26,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2022-12-13 19:00:26,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:26,087 INFO L225 Difference]: With dead ends: 14696 [2022-12-13 19:00:26,088 INFO L226 Difference]: Without dead ends: 7352 [2022-12-13 19:00:26,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-12-13 19:00:26,105 INFO L413 NwaCegarLoop]: 1028 mSDtfsCounter, 0 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:26,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4098 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:00:26,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2022-12-13 19:00:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 7352. [2022-12-13 19:00:26,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7352 states, 5254 states have (on average 1.3207080319756377) internal successors, (6939), 5412 states have internal predecessors, (6939), 1558 states have call successors, (1558), 352 states have call predecessors, (1558), 539 states have return successors, (2217), 1675 states have call predecessors, (2217), 1555 states have call successors, (2217) [2022-12-13 19:00:26,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 10714 transitions. [2022-12-13 19:00:26,558 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 10714 transitions. Word has length 170 [2022-12-13 19:00:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:26,558 INFO L495 AbstractCegarLoop]: Abstraction has 7352 states and 10714 transitions. [2022-12-13 19:00:26,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 19:00:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 10714 transitions. [2022-12-13 19:00:26,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-13 19:00:26,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:26,565 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:26,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 19:00:26,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 19:00:26,767 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:26,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:26,768 INFO L85 PathProgramCache]: Analyzing trace with hash 222400003, now seen corresponding path program 1 times [2022-12-13 19:00:26,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:26,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244850630] [2022-12-13 19:00:26,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:26,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 19:00:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 19:00:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 19:00:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 19:00:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 19:00:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 19:00:27,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:27,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244850630] [2022-12-13 19:00:27,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244850630] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:00:27,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018028027] [2022-12-13 19:00:27,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:27,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:27,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:00:27,404 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:00:27,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 19:00:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:27,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-13 19:00:27,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:00:27,952 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 19:00:27,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:00:27,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018028027] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:27,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:00:27,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 22 [2022-12-13 19:00:27,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87935674] [2022-12-13 19:00:27,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:27,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 19:00:27,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:27,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 19:00:27,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-12-13 19:00:27,954 INFO L87 Difference]: Start difference. First operand 7352 states and 10714 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 9 states have internal predecessors, (114), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-13 19:00:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:29,542 INFO L93 Difference]: Finished difference Result 17180 states and 25497 transitions. [2022-12-13 19:00:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 19:00:29,543 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 9 states have internal predecessors, (114), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 176 [2022-12-13 19:00:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:29,568 INFO L225 Difference]: With dead ends: 17180 [2022-12-13 19:00:29,569 INFO L226 Difference]: Without dead ends: 9852 [2022-12-13 19:00:29,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 19:00:29,582 INFO L413 NwaCegarLoop]: 2015 mSDtfsCounter, 2252 mSDsluCounter, 17325 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 19340 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:29,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2294 Valid, 19340 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 19:00:29,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9852 states. [2022-12-13 19:00:30,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9852 to 7327. [2022-12-13 19:00:30,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7327 states, 5237 states have (on average 1.320030551842658) internal successors, (6913), 5395 states have internal predecessors, (6913), 1550 states have call successors, (1550), 352 states have call predecessors, (1550), 539 states have return successors, (2209), 1667 states have call predecessors, (2209), 1547 states have call successors, (2209) [2022-12-13 19:00:30,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 10672 transitions. [2022-12-13 19:00:30,110 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 10672 transitions. Word has length 176 [2022-12-13 19:00:30,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:30,111 INFO L495 AbstractCegarLoop]: Abstraction has 7327 states and 10672 transitions. [2022-12-13 19:00:30,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 9 states have internal predecessors, (114), 4 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-13 19:00:30,111 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 10672 transitions. [2022-12-13 19:00:30,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-12-13 19:00:30,117 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:30,117 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:30,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 19:00:30,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 19:00:30,319 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:30,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:30,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1907114897, now seen corresponding path program 1 times [2022-12-13 19:00:30,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:30,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028975066] [2022-12-13 19:00:30,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:30,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 19:00:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 19:00:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 19:00:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 19:00:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:00:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 19:00:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 19:00:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-12-13 19:00:31,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:31,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028975066] [2022-12-13 19:00:31,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028975066] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:00:31,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369682985] [2022-12-13 19:00:31,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:31,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:31,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:00:31,140 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:00:31,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 19:00:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:31,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 3032 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-13 19:00:31,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:00:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 19:00:32,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:00:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 19:00:32,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369682985] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:00:32,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:00:32,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 24 [2022-12-13 19:00:32,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320457200] [2022-12-13 19:00:32,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:00:32,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 19:00:32,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:32,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 19:00:32,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2022-12-13 19:00:32,409 INFO L87 Difference]: Start difference. First operand 7327 states and 10672 transitions. Second operand has 24 states, 24 states have (on average 10.166666666666666) internal successors, (244), 15 states have internal predecessors, (244), 6 states have call successors, (60), 12 states have call predecessors, (60), 6 states have return successors, (50), 8 states have call predecessors, (50), 6 states have call successors, (50) [2022-12-13 19:00:42,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:00:42,796 INFO L93 Difference]: Finished difference Result 17235 states and 25720 transitions. [2022-12-13 19:00:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 19:00:42,797 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 10.166666666666666) internal successors, (244), 15 states have internal predecessors, (244), 6 states have call successors, (60), 12 states have call predecessors, (60), 6 states have return successors, (50), 8 states have call predecessors, (50), 6 states have call successors, (50) Word has length 196 [2022-12-13 19:00:42,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:00:42,822 INFO L225 Difference]: With dead ends: 17235 [2022-12-13 19:00:42,822 INFO L226 Difference]: Without dead ends: 9932 [2022-12-13 19:00:42,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=280, Invalid=1280, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 19:00:42,835 INFO L413 NwaCegarLoop]: 1188 mSDtfsCounter, 6137 mSDsluCounter, 11719 mSDsCounter, 0 mSdLazyCounter, 10426 mSolverCounterSat, 4013 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6248 SdHoareTripleChecker+Valid, 12907 SdHoareTripleChecker+Invalid, 14439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4013 IncrementalHoareTripleChecker+Valid, 10426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-12-13 19:00:42,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6248 Valid, 12907 Invalid, 14439 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4013 Valid, 10426 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-12-13 19:00:42,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9932 states. [2022-12-13 19:00:43,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9932 to 7099. [2022-12-13 19:00:43,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7099 states, 5085 states have (on average 1.32055063913471) internal successors, (6715), 5235 states have internal predecessors, (6715), 1480 states have call successors, (1480), 348 states have call predecessors, (1480), 533 states have return successors, (2119), 1599 states have call predecessors, (2119), 1477 states have call successors, (2119) [2022-12-13 19:00:43,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7099 states to 7099 states and 10314 transitions. [2022-12-13 19:00:43,586 INFO L78 Accepts]: Start accepts. Automaton has 7099 states and 10314 transitions. Word has length 196 [2022-12-13 19:00:43,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:00:43,586 INFO L495 AbstractCegarLoop]: Abstraction has 7099 states and 10314 transitions. [2022-12-13 19:00:43,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.166666666666666) internal successors, (244), 15 states have internal predecessors, (244), 6 states have call successors, (60), 12 states have call predecessors, (60), 6 states have return successors, (50), 8 states have call predecessors, (50), 6 states have call successors, (50) [2022-12-13 19:00:43,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7099 states and 10314 transitions. [2022-12-13 19:00:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-12-13 19:00:43,591 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:00:43,591 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:43,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 19:00:43,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 19:00:43,794 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:00:43,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:43,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2083453667, now seen corresponding path program 2 times [2022-12-13 19:00:43,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:43,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178090831] [2022-12-13 19:00:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:43,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:00:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 19:00:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 19:00:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 19:00:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 19:00:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:00:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 19:00:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:00:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:00:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 19:00:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:00:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:00:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:00:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:00:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:00:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-12-13 19:00:44,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:44,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178090831] [2022-12-13 19:00:44,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178090831] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:00:44,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981393315] [2022-12-13 19:00:44,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:00:44,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:00:44,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:00:44,388 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:00:44,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 19:00:45,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:00:45,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:00:45,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 3032 conjuncts, 148 conjunts are in the unsatisfiable core [2022-12-13 19:00:45,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:00:45,376 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 13 treesize of output 9 [2022-12-13 19:00:45,381 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 13 treesize of output 9 [2022-12-13 19:00:45,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 19:00:45,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 19:00:45,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-12-13 19:00:45,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-12-13 19:00:45,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2022-12-13 19:00:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 34 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 19:00:46,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:01:02,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981393315] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:01:02,044 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:01:02,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21] total 31 [2022-12-13 19:01:02,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873620024] [2022-12-13 19:01:02,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:01:02,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-13 19:01:02,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:01:02,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-13 19:01:02,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1477, Unknown=1, NotChecked=0, Total=1640 [2022-12-13 19:01:02,046 INFO L87 Difference]: Start difference. First operand 7099 states and 10314 transitions. Second operand has 31 states, 30 states have (on average 7.166666666666667) internal successors, (215), 21 states have internal predecessors, (215), 9 states have call successors, (41), 13 states have call predecessors, (41), 9 states have return successors, (37), 11 states have call predecessors, (37), 9 states have call successors, (37) [2022-12-13 19:01:06,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:08,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:10,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:12,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:16,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:19,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:21,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:30,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:32,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:37,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:41,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:47,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:52,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:01:57,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:02:07,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:02:07,942 INFO L93 Difference]: Finished difference Result 29350 states and 45054 transitions. [2022-12-13 19:02:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-12-13 19:02:07,944 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 7.166666666666667) internal successors, (215), 21 states have internal predecessors, (215), 9 states have call successors, (41), 13 states have call predecessors, (41), 9 states have return successors, (37), 11 states have call predecessors, (37), 9 states have call successors, (37) Word has length 196 [2022-12-13 19:02:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:02:08,005 INFO L225 Difference]: With dead ends: 29350 [2022-12-13 19:02:08,005 INFO L226 Difference]: Without dead ends: 22261 [2022-12-13 19:02:08,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 301 SyntacticMatches, 2 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4826 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=2601, Invalid=14428, Unknown=1, NotChecked=0, Total=17030 [2022-12-13 19:02:08,026 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 9165 mSDsluCounter, 24561 mSDsCounter, 0 mSdLazyCounter, 31754 mSolverCounterSat, 7111 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9288 SdHoareTripleChecker+Valid, 26087 SdHoareTripleChecker+Invalid, 38879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7111 IncrementalHoareTripleChecker+Valid, 31754 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:02:08,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9288 Valid, 26087 Invalid, 38879 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7111 Valid, 31754 Invalid, 14 Unknown, 0 Unchecked, 56.9s Time] [2022-12-13 19:02:08,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22261 states. [2022-12-13 19:02:10,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22261 to 17790. [2022-12-13 19:02:10,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17790 states, 12772 states have (on average 1.3328374569370498) internal successors, (17023), 13254 states have internal predecessors, (17023), 3582 states have call successors, (3582), 896 states have call predecessors, (3582), 1435 states have return successors, (6359), 3823 states have call predecessors, (6359), 3579 states have call successors, (6359) [2022-12-13 19:02:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17790 states to 17790 states and 26964 transitions. [2022-12-13 19:02:10,167 INFO L78 Accepts]: Start accepts. Automaton has 17790 states and 26964 transitions. Word has length 196 [2022-12-13 19:02:10,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:02:10,168 INFO L495 AbstractCegarLoop]: Abstraction has 17790 states and 26964 transitions. [2022-12-13 19:02:10,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 7.166666666666667) internal successors, (215), 21 states have internal predecessors, (215), 9 states have call successors, (41), 13 states have call predecessors, (41), 9 states have return successors, (37), 11 states have call predecessors, (37), 9 states have call successors, (37) [2022-12-13 19:02:10,168 INFO L276 IsEmpty]: Start isEmpty. Operand 17790 states and 26964 transitions. [2022-12-13 19:02:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-12-13 19:02:10,179 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:02:10,179 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:02:10,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 19:02:10,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 19:02:10,382 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:02:10,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:02:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash 20655744, now seen corresponding path program 1 times [2022-12-13 19:02:10,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:02:10,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131405456] [2022-12-13 19:02:10,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:02:10,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:02:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:02:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 19:02:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 19:02:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 19:02:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 19:02:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 19:02:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:02:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 19:02:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:02:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 19:02:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:02:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:02:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:02:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:02:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:02:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-12-13 19:02:10,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:02:10,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131405456] [2022-12-13 19:02:10,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131405456] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:02:10,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938500914] [2022-12-13 19:02:10,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:02:10,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:02:10,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:02:10,970 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:02:10,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 19:02:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:11,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 19:02:11,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:02:11,710 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 19:02:11,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:02:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-12-13 19:02:11,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938500914] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:02:11,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:02:11,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 21 [2022-12-13 19:02:11,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175100580] [2022-12-13 19:02:11,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:02:11,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 19:02:11,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:02:11,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 19:02:11,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2022-12-13 19:02:11,895 INFO L87 Difference]: Start difference. First operand 17790 states and 26964 transitions. Second operand has 21 states, 21 states have (on average 8.523809523809524) internal successors, (179), 13 states have internal predecessors, (179), 2 states have call successors, (52), 10 states have call predecessors, (52), 5 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-13 19:02:20,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:02:20,396 INFO L93 Difference]: Finished difference Result 37171 states and 56551 transitions. [2022-12-13 19:02:20,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 19:02:20,397 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.523809523809524) internal successors, (179), 13 states have internal predecessors, (179), 2 states have call successors, (52), 10 states have call predecessors, (52), 5 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 204 [2022-12-13 19:02:20,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:02:20,450 INFO L225 Difference]: With dead ends: 37171 [2022-12-13 19:02:20,450 INFO L226 Difference]: Without dead ends: 19400 [2022-12-13 19:02:20,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 442 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=216, Invalid=840, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 19:02:20,485 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 2364 mSDsluCounter, 7333 mSDsCounter, 0 mSdLazyCounter, 5113 mSolverCounterSat, 1844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 8118 SdHoareTripleChecker+Invalid, 6957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1844 IncrementalHoareTripleChecker+Valid, 5113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-13 19:02:20,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 8118 Invalid, 6957 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1844 Valid, 5113 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-13 19:02:20,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19400 states. [2022-12-13 19:02:22,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19400 to 17794. [2022-12-13 19:02:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17794 states, 12776 states have (on average 1.3328115216030056) internal successors, (17028), 13258 states have internal predecessors, (17028), 3582 states have call successors, (3582), 896 states have call predecessors, (3582), 1435 states have return successors, (6359), 3823 states have call predecessors, (6359), 3579 states have call successors, (6359) [2022-12-13 19:02:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17794 states to 17794 states and 26969 transitions. [2022-12-13 19:02:22,642 INFO L78 Accepts]: Start accepts. Automaton has 17794 states and 26969 transitions. Word has length 204 [2022-12-13 19:02:22,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:02:22,642 INFO L495 AbstractCegarLoop]: Abstraction has 17794 states and 26969 transitions. [2022-12-13 19:02:22,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.523809523809524) internal successors, (179), 13 states have internal predecessors, (179), 2 states have call successors, (52), 10 states have call predecessors, (52), 5 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-13 19:02:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 17794 states and 26969 transitions. [2022-12-13 19:02:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-12-13 19:02:22,650 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:02:22,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:02:22,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 19:02:22,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 19:02:22,852 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:02:22,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:02:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1851771552, now seen corresponding path program 2 times [2022-12-13 19:02:22,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:02:22,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754573872] [2022-12-13 19:02:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:02:22,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:02:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:02:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:02:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:02:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:02:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:02:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:02:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:02:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:02:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:02:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 19:02:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:02:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:02:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:02:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:02:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:02:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-12-13 19:02:24,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:02:24,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754573872] [2022-12-13 19:02:24,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754573872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:02:24,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:02:24,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-13 19:02:24,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578225940] [2022-12-13 19:02:24,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:02:24,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 19:02:24,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:02:24,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 19:02:24,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-12-13 19:02:24,933 INFO L87 Difference]: Start difference. First operand 17794 states and 26969 transitions. Second operand has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 13 states have internal predecessors, (123), 8 states have call successors, (22), 10 states have call predecessors, (22), 5 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2022-12-13 19:02:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:02:40,859 INFO L93 Difference]: Finished difference Result 51430 states and 79246 transitions. [2022-12-13 19:02:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-13 19:02:40,861 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 13 states have internal predecessors, (123), 8 states have call successors, (22), 10 states have call predecessors, (22), 5 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) Word has length 206 [2022-12-13 19:02:40,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:02:40,956 INFO L225 Difference]: With dead ends: 51430 [2022-12-13 19:02:40,956 INFO L226 Difference]: Without dead ends: 33660 [2022-12-13 19:02:41,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=649, Invalid=2321, Unknown=0, NotChecked=0, Total=2970 [2022-12-13 19:02:41,002 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 7441 mSDsluCounter, 7925 mSDsCounter, 0 mSdLazyCounter, 8941 mSolverCounterSat, 4890 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7507 SdHoareTripleChecker+Valid, 8774 SdHoareTripleChecker+Invalid, 13831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4890 IncrementalHoareTripleChecker+Valid, 8941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:02:41,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7507 Valid, 8774 Invalid, 13831 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4890 Valid, 8941 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-12-13 19:02:41,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33660 states. [2022-12-13 19:02:44,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33660 to 29214. [2022-12-13 19:02:44,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29214 states, 20992 states have (on average 1.3344131097560976) internal successors, (28012), 21802 states have internal predecessors, (28012), 5902 states have call successors, (5902), 1504 states have call predecessors, (5902), 2319 states have return successors, (10159), 6211 states have call predecessors, (10159), 5899 states have call successors, (10159) [2022-12-13 19:02:44,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29214 states to 29214 states and 44073 transitions. [2022-12-13 19:02:44,985 INFO L78 Accepts]: Start accepts. Automaton has 29214 states and 44073 transitions. Word has length 206 [2022-12-13 19:02:44,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:02:44,985 INFO L495 AbstractCegarLoop]: Abstraction has 29214 states and 44073 transitions. [2022-12-13 19:02:44,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.590909090909091) internal successors, (123), 13 states have internal predecessors, (123), 8 states have call successors, (22), 10 states have call predecessors, (22), 5 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2022-12-13 19:02:44,985 INFO L276 IsEmpty]: Start isEmpty. Operand 29214 states and 44073 transitions. [2022-12-13 19:02:44,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-12-13 19:02:44,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:02:44,995 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:02:44,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 19:02:44,995 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:02:44,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:02:44,995 INFO L85 PathProgramCache]: Analyzing trace with hash 2099838639, now seen corresponding path program 1 times [2022-12-13 19:02:44,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:02:44,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229392731] [2022-12-13 19:02:44,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:02:44,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:02:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:02:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:02:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:02:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:02:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:02:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:02:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:02:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:02:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:02:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 19:02:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 19:02:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 19:02:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 19:02:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:45,327 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-12-13 19:02:45,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:02:45,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229392731] [2022-12-13 19:02:45,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229392731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:02:45,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:02:45,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 19:02:45,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239355213] [2022-12-13 19:02:45,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:02:45,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 19:02:45,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:02:45,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 19:02:45,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:02:45,329 INFO L87 Difference]: Start difference. First operand 29214 states and 44073 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-13 19:03:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:01,409 INFO L93 Difference]: Finished difference Result 100793 states and 155159 transitions. [2022-12-13 19:03:01,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 19:03:01,411 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 202 [2022-12-13 19:03:01,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:01,645 INFO L225 Difference]: With dead ends: 100793 [2022-12-13 19:03:01,645 INFO L226 Difference]: Without dead ends: 71608 [2022-12-13 19:03:01,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-12-13 19:03:01,718 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 5300 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 3454 mSolverCounterSat, 3556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5404 SdHoareTripleChecker+Valid, 4355 SdHoareTripleChecker+Invalid, 7010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3556 IncrementalHoareTripleChecker+Valid, 3454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:01,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5404 Valid, 4355 Invalid, 7010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3556 Valid, 3454 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-12-13 19:03:01,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71608 states. [2022-12-13 19:03:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71608 to 28816. [2022-12-13 19:03:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28816 states, 20684 states have (on average 1.336008508992458) internal successors, (27634), 21464 states have internal predecessors, (27634), 5872 states have call successors, (5872), 1504 states have call predecessors, (5872), 2259 states have return successors, (9875), 6151 states have call predecessors, (9875), 5869 states have call successors, (9875) [2022-12-13 19:03:07,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28816 states to 28816 states and 43381 transitions. [2022-12-13 19:03:07,009 INFO L78 Accepts]: Start accepts. Automaton has 28816 states and 43381 transitions. Word has length 202 [2022-12-13 19:03:07,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:07,010 INFO L495 AbstractCegarLoop]: Abstraction has 28816 states and 43381 transitions. [2022-12-13 19:03:07,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-12-13 19:03:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 28816 states and 43381 transitions. [2022-12-13 19:03:07,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-12-13 19:03:07,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:07,020 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:03:07,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 19:03:07,020 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:07,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:07,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1184011407, now seen corresponding path program 1 times [2022-12-13 19:03:07,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:03:07,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776495881] [2022-12-13 19:03:07,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:07,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:03:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:03:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:03:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:03:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:03:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:03:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:03:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:03:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:03:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:03:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 19:03:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 19:03:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 19:03:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 19:03:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-12-13 19:03:07,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:07,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776495881] [2022-12-13 19:03:07,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776495881] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:03:07,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575108164] [2022-12-13 19:03:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:07,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:07,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:03:07,364 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:03:07,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 19:03:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:07,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 3256 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:03:07,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:07,992 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-12-13 19:03:07,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:03:07,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575108164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:07,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:03:07,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 11 [2022-12-13 19:03:07,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601317275] [2022-12-13 19:03:07,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:07,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:03:07,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:03:07,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:03:07,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 19:03:07,993 INFO L87 Difference]: Start difference. First operand 28816 states and 43381 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 19:03:21,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:21,288 INFO L93 Difference]: Finished difference Result 86395 states and 130084 transitions. [2022-12-13 19:03:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:03:21,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 202 [2022-12-13 19:03:21,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:21,571 INFO L225 Difference]: With dead ends: 86395 [2022-12-13 19:03:21,571 INFO L226 Difference]: Without dead ends: 86378 [2022-12-13 19:03:21,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 19:03:21,607 INFO L413 NwaCegarLoop]: 2186 mSDtfsCounter, 1911 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 3876 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:21,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 3876 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 19:03:21,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86378 states. [2022-12-13 19:03:34,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86378 to 86284. [2022-12-13 19:03:34,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86284 states, 61908 states have (on average 1.3364670155714933) internal successors, (82738), 64284 states have internal predecessors, (82738), 17604 states have call successors, (17604), 4504 states have call predecessors, (17604), 6771 states have return successors, (29619), 18407 states have call predecessors, (29619), 17601 states have call successors, (29619) [2022-12-13 19:03:35,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86284 states to 86284 states and 129961 transitions. [2022-12-13 19:03:35,220 INFO L78 Accepts]: Start accepts. Automaton has 86284 states and 129961 transitions. Word has length 202 [2022-12-13 19:03:35,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:35,221 INFO L495 AbstractCegarLoop]: Abstraction has 86284 states and 129961 transitions. [2022-12-13 19:03:35,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 19:03:35,221 INFO L276 IsEmpty]: Start isEmpty. Operand 86284 states and 129961 transitions. [2022-12-13 19:03:35,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-12-13 19:03:35,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:35,250 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:03:35,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 19:03:35,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:35,452 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:35,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:35,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1070365049, now seen corresponding path program 1 times [2022-12-13 19:03:35,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:03:35,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628178716] [2022-12-13 19:03:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:35,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:03:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:03:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:03:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:03:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:03:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:03:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:03:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:03:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:03:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:03:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 19:03:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-12-13 19:03:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:03:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:03:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:03:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:40,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:03:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:03:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-12-13 19:03:40,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:40,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628178716] [2022-12-13 19:03:40,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628178716] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:03:40,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283060198] [2022-12-13 19:03:40,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:40,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:40,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:03:40,250 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:03:40,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 19:03:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:42,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 3183 conjuncts, 150 conjunts are in the unsatisfiable core [2022-12-13 19:03:42,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:43,465 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 13 treesize of output 9 [2022-12-13 19:03:43,471 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 13 treesize of output 9 [2022-12-13 19:03:43,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 19:03:43,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 19:03:44,237 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 49 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-13 19:03:44,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:03:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-12-13 19:03:47,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283060198] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:03:47,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:03:47,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 29, 20] total 62 [2022-12-13 19:03:47,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248591822] [2022-12-13 19:03:47,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:03:47,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-12-13 19:03:47,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:03:47,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-12-13 19:03:47,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=3555, Unknown=1, NotChecked=0, Total=3782 [2022-12-13 19:03:47,765 INFO L87 Difference]: Start difference. First operand 86284 states and 129961 transitions. Second operand has 62 states, 58 states have (on average 3.6206896551724137) internal successors, (210), 42 states have internal predecessors, (210), 18 states have call successors, (49), 14 states have call predecessors, (49), 14 states have return successors, (43), 23 states have call predecessors, (43), 17 states have call successors, (43) [2022-12-13 19:04:44,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:04:44,827 INFO L93 Difference]: Finished difference Result 132641 states and 202021 transitions. [2022-12-13 19:04:44,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-12-13 19:04:44,828 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 58 states have (on average 3.6206896551724137) internal successors, (210), 42 states have internal predecessors, (210), 18 states have call successors, (49), 14 states have call predecessors, (49), 14 states have return successors, (43), 23 states have call predecessors, (43), 17 states have call successors, (43) Word has length 219 [2022-12-13 19:04:44,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:04:45,042 INFO L225 Difference]: With dead ends: 132641 [2022-12-13 19:04:45,042 INFO L226 Difference]: Without dead ends: 45114 [2022-12-13 19:04:45,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 469 SyntacticMatches, 1 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6259 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=2139, Invalid=21116, Unknown=1, NotChecked=0, Total=23256 [2022-12-13 19:04:45,194 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 5062 mSDsluCounter, 44668 mSDsCounter, 0 mSdLazyCounter, 43638 mSolverCounterSat, 3947 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5128 SdHoareTripleChecker+Valid, 46090 SdHoareTripleChecker+Invalid, 47585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3947 IncrementalHoareTripleChecker+Valid, 43638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2022-12-13 19:04:45,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5128 Valid, 46090 Invalid, 47585 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3947 Valid, 43638 Invalid, 0 Unknown, 0 Unchecked, 39.5s Time] [2022-12-13 19:04:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45114 states. [2022-12-13 19:04:51,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45114 to 36724. [2022-12-13 19:04:51,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36724 states, 26310 states have (on average 1.3276320790573926) internal successors, (34930), 27240 states have internal predecessors, (34930), 7356 states have call successors, (7356), 1972 states have call predecessors, (7356), 3057 states have return successors, (13173), 7871 states have call predecessors, (13173), 7353 states have call successors, (13173) [2022-12-13 19:04:51,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36724 states to 36724 states and 55459 transitions. [2022-12-13 19:04:51,601 INFO L78 Accepts]: Start accepts. Automaton has 36724 states and 55459 transitions. Word has length 219 [2022-12-13 19:04:51,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:04:51,601 INFO L495 AbstractCegarLoop]: Abstraction has 36724 states and 55459 transitions. [2022-12-13 19:04:51,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 58 states have (on average 3.6206896551724137) internal successors, (210), 42 states have internal predecessors, (210), 18 states have call successors, (49), 14 states have call predecessors, (49), 14 states have return successors, (43), 23 states have call predecessors, (43), 17 states have call successors, (43) [2022-12-13 19:04:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 36724 states and 55459 transitions. [2022-12-13 19:04:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-12-13 19:04:51,622 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:04:51,622 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:04:51,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 19:04:51,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:04:51,824 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:04:51,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:51,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1225285216, now seen corresponding path program 1 times [2022-12-13 19:04:51,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:51,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039941744] [2022-12-13 19:04:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:51,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:04:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:04:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:04:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:04:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:04:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:04:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:04:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:04:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:04:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:04:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:04:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:04:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:04:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 19:04:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 19:04:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 19:04:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 19:04:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-12-13 19:04:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-12-13 19:04:52,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:52,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039941744] [2022-12-13 19:04:52,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039941744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:52,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:52,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 19:04:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353519598] [2022-12-13 19:04:52,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:52,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 19:04:52,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:52,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 19:04:52,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 19:04:52,205 INFO L87 Difference]: Start difference. First operand 36724 states and 55459 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 19:05:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:06,408 INFO L93 Difference]: Finished difference Result 79331 states and 121064 transitions. [2022-12-13 19:05:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 19:05:06,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 212 [2022-12-13 19:05:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:06,545 INFO L225 Difference]: With dead ends: 79331 [2022-12-13 19:05:06,545 INFO L226 Difference]: Without dead ends: 41988 [2022-12-13 19:05:06,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2022-12-13 19:05:06,622 INFO L413 NwaCegarLoop]: 1122 mSDtfsCounter, 4173 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 3433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4259 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 5887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3433 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-13 19:05:06,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4259 Valid, 3360 Invalid, 5887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3433 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-13 19:05:06,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41988 states. [2022-12-13 19:05:13,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41988 to 35532. [2022-12-13 19:05:13,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35532 states, 25340 states have (on average 1.3172849250197316) internal successors, (33380), 26170 states have internal predecessors, (33380), 7212 states have call successors, (7212), 1906 states have call predecessors, (7212), 2979 states have return successors, (12933), 7793 states have call predecessors, (12933), 7209 states have call successors, (12933) [2022-12-13 19:05:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35532 states to 35532 states and 53525 transitions. [2022-12-13 19:05:13,641 INFO L78 Accepts]: Start accepts. Automaton has 35532 states and 53525 transitions. Word has length 212 [2022-12-13 19:05:13,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:13,642 INFO L495 AbstractCegarLoop]: Abstraction has 35532 states and 53525 transitions. [2022-12-13 19:05:13,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 19:05:13,642 INFO L276 IsEmpty]: Start isEmpty. Operand 35532 states and 53525 transitions. [2022-12-13 19:05:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-12-13 19:05:13,661 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:13,661 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:13,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 19:05:13,662 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:13,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:13,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1205744094, now seen corresponding path program 1 times [2022-12-13 19:05:13,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:13,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438537254] [2022-12-13 19:05:13,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:13,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:05:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:05:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:05:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:05:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:05:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:05:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:05:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:05:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:05:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 19:05:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 19:05:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 19:05:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 19:05:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-12-13 19:05:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-12-13 19:05:13,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:13,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438537254] [2022-12-13 19:05:13,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438537254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:13,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:13,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 19:05:13,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832052235] [2022-12-13 19:05:13,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:13,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 19:05:13,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:13,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 19:05:13,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 19:05:13,916 INFO L87 Difference]: Start difference. First operand 35532 states and 53525 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 19:05:20,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:20,398 INFO L93 Difference]: Finished difference Result 55535 states and 84338 transitions. [2022-12-13 19:05:20,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:05:20,399 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 212 [2022-12-13 19:05:20,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:20,457 INFO L225 Difference]: With dead ends: 55535 [2022-12-13 19:05:20,458 INFO L226 Difference]: Without dead ends: 20031 [2022-12-13 19:05:20,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-12-13 19:05:20,522 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 2380 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 1872 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 3418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1872 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 19:05:20,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 2544 Invalid, 3418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1872 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 19:05:20,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20031 states. [2022-12-13 19:05:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20031 to 17084. [2022-12-13 19:05:23,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17084 states, 12117 states have (on average 1.312040934224643) internal successors, (15898), 12487 states have internal predecessors, (15898), 3521 states have call successors, (3521), 915 states have call predecessors, (3521), 1445 states have return successors, (6332), 3840 states have call predecessors, (6332), 3518 states have call successors, (6332) [2022-12-13 19:05:23,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17084 states to 17084 states and 25751 transitions. [2022-12-13 19:05:23,587 INFO L78 Accepts]: Start accepts. Automaton has 17084 states and 25751 transitions. Word has length 212 [2022-12-13 19:05:23,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:23,587 INFO L495 AbstractCegarLoop]: Abstraction has 17084 states and 25751 transitions. [2022-12-13 19:05:23,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 19:05:23,587 INFO L276 IsEmpty]: Start isEmpty. Operand 17084 states and 25751 transitions. [2022-12-13 19:05:23,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-12-13 19:05:23,599 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:23,599 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:23,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 19:05:23,599 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:23,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:23,599 INFO L85 PathProgramCache]: Analyzing trace with hash -320746635, now seen corresponding path program 1 times [2022-12-13 19:05:23,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:23,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129670166] [2022-12-13 19:05:23,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:23,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:05:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:05:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:05:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:05:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:05:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:05:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:05:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:05:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:05:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 19:05:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-12-13 19:05:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 19:05:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:05:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 19:05:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:05:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 19:05:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:05:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:05:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:05:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:05:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:05:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:24,823 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-12-13 19:05:24,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:24,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129670166] [2022-12-13 19:05:24,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129670166] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:05:24,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601494925] [2022-12-13 19:05:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:24,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:24,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:05:24,824 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:05:24,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 19:05:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:25,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 3581 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-13 19:05:25,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:05:25,493 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-12-13 19:05:25,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:05:25,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601494925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:25,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:05:25,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 18 [2022-12-13 19:05:25,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100327479] [2022-12-13 19:05:25,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:25,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 19:05:25,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:25,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 19:05:25,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-12-13 19:05:25,495 INFO L87 Difference]: Start difference. First operand 17084 states and 25751 transitions. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 4 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 19:05:28,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:28,681 INFO L93 Difference]: Finished difference Result 34660 states and 52350 transitions. [2022-12-13 19:05:28,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 19:05:28,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 4 states have call predecessors, (26), 2 states have call successors, (26) Word has length 254 [2022-12-13 19:05:28,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:28,732 INFO L225 Difference]: With dead ends: 34660 [2022-12-13 19:05:28,732 INFO L226 Difference]: Without dead ends: 17676 [2022-12-13 19:05:28,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 305 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-12-13 19:05:28,763 INFO L413 NwaCegarLoop]: 1141 mSDtfsCounter, 211 mSDsluCounter, 7670 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 8811 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:05:28,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 8811 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:05:28,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17676 states. [2022-12-13 19:05:31,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17676 to 17180. [2022-12-13 19:05:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17180 states, 12189 states have (on average 1.310197719255066) internal successors, (15970), 12559 states have internal predecessors, (15970), 3521 states have call successors, (3521), 915 states have call predecessors, (3521), 1469 states have return successors, (6368), 3864 states have call predecessors, (6368), 3518 states have call successors, (6368) [2022-12-13 19:05:31,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17180 states to 17180 states and 25859 transitions. [2022-12-13 19:05:31,774 INFO L78 Accepts]: Start accepts. Automaton has 17180 states and 25859 transitions. Word has length 254 [2022-12-13 19:05:31,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:31,775 INFO L495 AbstractCegarLoop]: Abstraction has 17180 states and 25859 transitions. [2022-12-13 19:05:31,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 4 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 19:05:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 17180 states and 25859 transitions. [2022-12-13 19:05:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-12-13 19:05:31,786 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:31,786 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:31,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 19:05:31,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:31,989 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:31,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:31,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1379203519, now seen corresponding path program 2 times [2022-12-13 19:05:31,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:31,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054016168] [2022-12-13 19:05:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:31,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:05:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:05:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:05:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:05:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:05:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:37,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:05:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:38,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:38,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:38,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:05:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:05:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:38,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:38,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:05:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:38,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 19:05:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:38,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:39,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-12-13 19:05:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 19:05:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:40,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:05:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 19:05:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:40,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:05:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 19:05:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:05:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:05:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:05:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:05:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:42,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:05:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:42,026 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 43 proven. 41 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-12-13 19:05:42,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:42,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054016168] [2022-12-13 19:05:42,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054016168] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:05:42,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094327490] [2022-12-13 19:05:42,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:05:42,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:42,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:05:42,027 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:05:42,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 19:05:44,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:05:44,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:05:44,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 3607 conjuncts, 243 conjunts are in the unsatisfiable core [2022-12-13 19:05:44,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:05:44,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 19:05:45,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-12-13 19:05:45,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-12-13 19:05:45,395 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 19:05:45,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 19:05:45,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-12-13 19:05:46,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-12-13 19:05:46,412 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 19:05:46,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 19:05:46,624 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 13 treesize of output 9 [2022-12-13 19:05:46,629 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 13 treesize of output 9 [2022-12-13 19:05:46,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-12-13 19:05:47,694 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 19:05:47,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 19:05:47,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 19:05:47,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 19:05:48,627 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 19:05:48,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 32 [2022-12-13 19:05:48,630 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 10 treesize of output 9 [2022-12-13 19:05:48,658 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 19:05:48,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 32 [2022-12-13 19:05:48,661 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 10 treesize of output 9 [2022-12-13 19:05:48,702 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 19:05:48,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 53 [2022-12-13 19:05:48,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 24 [2022-12-13 19:05:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 79 proven. 57 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 19:05:49,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:05:50,953 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (+ c_~usb_urb~0.offset c_~usb_urb~0.base) 18446744073709551616))) (and (not (= .cse0 0)) (forall ((v_ArrVal_3385 (Array Int Int)) (v_ArrVal_3386 (Array Int Int))) (= (mod (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.base|) (+ 51 |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.offset|))) (.cse2 (+ 20 |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_3386) |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.base|) .cse2) (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_3385) |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.base|) .cse2))) 18446744073709551616) .cse0)))) is different from false [2022-12-13 19:05:50,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094327490] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:05:50,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:05:50,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 45] total 86 [2022-12-13 19:05:50,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745806635] [2022-12-13 19:05:50,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:05:50,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-12-13 19:05:50,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:50,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-12-13 19:05:50,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=8165, Unknown=16, NotChecked=182, Total=8742 [2022-12-13 19:05:50,958 INFO L87 Difference]: Start difference. First operand 17180 states and 25859 transitions. Second operand has 86 states, 81 states have (on average 3.271604938271605) internal successors, (265), 66 states have internal predecessors, (265), 31 states have call successors, (60), 16 states have call predecessors, (60), 25 states have return successors, (55), 35 states have call predecessors, (55), 30 states have call successors, (55) [2022-12-13 19:06:31,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:07:43,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:07:43,539 INFO L93 Difference]: Finished difference Result 60217 states and 102065 transitions. [2022-12-13 19:07:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-12-13 19:07:43,540 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 81 states have (on average 3.271604938271605) internal successors, (265), 66 states have internal predecessors, (265), 31 states have call successors, (60), 16 states have call predecessors, (60), 25 states have return successors, (55), 35 states have call predecessors, (55), 30 states have call successors, (55) Word has length 260 [2022-12-13 19:07:43,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:07:43,717 INFO L225 Difference]: With dead ends: 60217 [2022-12-13 19:07:43,717 INFO L226 Difference]: Without dead ends: 43083 [2022-12-13 19:07:43,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 335 SyntacticMatches, 6 SemanticMatches, 202 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12443 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=3253, Invalid=37663, Unknown=94, NotChecked=402, Total=41412 [2022-12-13 19:07:43,771 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 8742 mSDsluCounter, 42244 mSDsCounter, 0 mSdLazyCounter, 66195 mSolverCounterSat, 7470 mSolverCounterUnsat, 2231 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8858 SdHoareTripleChecker+Valid, 43682 SdHoareTripleChecker+Invalid, 75896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 7470 IncrementalHoareTripleChecker+Valid, 66195 IncrementalHoareTripleChecker+Invalid, 2231 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.5s IncrementalHoareTripleChecker+Time [2022-12-13 19:07:43,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8858 Valid, 43682 Invalid, 75896 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [7470 Valid, 66195 Invalid, 2231 Unknown, 0 Unchecked, 77.5s Time] [2022-12-13 19:07:43,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43083 states. [2022-12-13 19:07:51,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43083 to 33542. [2022-12-13 19:07:51,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33542 states, 23721 states have (on average 1.3016736225285612) internal successors, (30877), 24577 states have internal predecessors, (30877), 6662 states have call successors, (6662), 1671 states have call predecessors, (6662), 3158 states have return successors, (19604), 7608 states have call predecessors, (19604), 6659 states have call successors, (19604) [2022-12-13 19:07:51,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33542 states to 33542 states and 57143 transitions. [2022-12-13 19:07:51,254 INFO L78 Accepts]: Start accepts. Automaton has 33542 states and 57143 transitions. Word has length 260 [2022-12-13 19:07:51,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:07:51,255 INFO L495 AbstractCegarLoop]: Abstraction has 33542 states and 57143 transitions. [2022-12-13 19:07:51,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 81 states have (on average 3.271604938271605) internal successors, (265), 66 states have internal predecessors, (265), 31 states have call successors, (60), 16 states have call predecessors, (60), 25 states have return successors, (55), 35 states have call predecessors, (55), 30 states have call successors, (55) [2022-12-13 19:07:51,255 INFO L276 IsEmpty]: Start isEmpty. Operand 33542 states and 57143 transitions. [2022-12-13 19:07:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-13 19:07:51,284 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:07:51,284 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:07:51,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 19:07:51,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 19:07:51,485 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:07:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:07:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash -225125351, now seen corresponding path program 1 times [2022-12-13 19:07:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:07:51,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265464982] [2022-12-13 19:07:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:07:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:07:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:07:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:07:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:07:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:56,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:07:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:56,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:56,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:07:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:56,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:07:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:07:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:07:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:07:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:07:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:07:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:07:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 19:07:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 19:07:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:07:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:58,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-12-13 19:07:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:58,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 19:07:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:58,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:07:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 19:07:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:59,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:07:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-12-13 19:07:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:07:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:07:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:00,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:08:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:00,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:08:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:00,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:08:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 30 proven. 46 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-12-13 19:08:00,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:00,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265464982] [2022-12-13 19:08:00,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265464982] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:00,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88833668] [2022-12-13 19:08:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:00,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:00,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:00,305 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:00,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 19:08:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:06,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 3577 conjuncts, 264 conjunts are in the unsatisfiable core [2022-12-13 19:08:06,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:06,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 19:08:07,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 19:08:07,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 19:08:07,831 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 19:08:07,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 19:08:07,952 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 13 treesize of output 9 [2022-12-13 19:08:08,030 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-13 19:08:08,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 19:08:08,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 19:08:08,272 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 13 treesize of output 9 [2022-12-13 19:08:08,483 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 19:08:08,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 19:08:09,488 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-13 19:08:09,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 19:08:09,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 19:08:09,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-12-13 19:08:10,575 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 19:08:10,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 32 [2022-12-13 19:08:10,578 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 10 treesize of output 9 [2022-12-13 19:08:10,607 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 19:08:10,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 32 [2022-12-13 19:08:10,610 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 10 treesize of output 9 [2022-12-13 19:08:10,649 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 19:08:10,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 76 [2022-12-13 19:08:10,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-12-13 19:08:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 64 proven. 54 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-13 19:08:11,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:08:13,003 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (+ c_~usb_urb~0.offset c_~usb_urb~0.base) 18446744073709551616))) (and (not (= .cse0 0)) (forall ((v_ArrVal_3766 (Array Int Int)) (v_ArrVal_3767 (Array Int Int))) (= .cse0 (mod (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.base|) (+ 51 |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.offset|))) (.cse2 (+ 20 |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_3766) |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.base|) .cse2) (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_3767) |c_ULTIMATE.start_if_usb_probe_~cardp~3#1.base|) .cse2))) 18446744073709551616))))) is different from false [2022-12-13 19:08:13,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88833668] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:13,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:08:13,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 47] total 95 [2022-12-13 19:08:13,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958194139] [2022-12-13 19:08:13,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:08:13,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-12-13 19:08:13,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:13,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-12-13 19:08:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=9882, Unknown=15, NotChecked=200, Total=10506 [2022-12-13 19:08:13,008 INFO L87 Difference]: Start difference. First operand 33542 states and 57143 transitions. Second operand has 95 states, 89 states have (on average 2.9101123595505616) internal successors, (259), 71 states have internal predecessors, (259), 32 states have call successors, (59), 17 states have call predecessors, (59), 25 states have return successors, (52), 38 states have call predecessors, (52), 31 states have call successors, (52) [2022-12-13 19:10:08,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:10:08,719 INFO L93 Difference]: Finished difference Result 77806 states and 134920 transitions. [2022-12-13 19:10:08,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-12-13 19:10:08,720 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 89 states have (on average 2.9101123595505616) internal successors, (259), 71 states have internal predecessors, (259), 32 states have call successors, (59), 17 states have call predecessors, (59), 25 states have return successors, (52), 38 states have call predecessors, (52), 31 states have call successors, (52) Word has length 253 [2022-12-13 19:10:08,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:10:08,966 INFO L225 Difference]: With dead ends: 77806 [2022-12-13 19:10:08,966 INFO L226 Difference]: Without dead ends: 44346 [2022-12-13 19:10:09,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 326 SyntacticMatches, 10 SemanticMatches, 217 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14919 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=3492, Invalid=43723, Unknown=95, NotChecked=432, Total=47742 [2022-12-13 19:10:09,064 INFO L413 NwaCegarLoop]: 1061 mSDtfsCounter, 5764 mSDsluCounter, 43330 mSDsCounter, 0 mSdLazyCounter, 89362 mSolverCounterSat, 4478 mSolverCounterUnsat, 2237 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5856 SdHoareTripleChecker+Valid, 44391 SdHoareTripleChecker+Invalid, 96077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 4478 IncrementalHoareTripleChecker+Valid, 89362 IncrementalHoareTripleChecker+Invalid, 2237 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.8s IncrementalHoareTripleChecker+Time [2022-12-13 19:10:09,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5856 Valid, 44391 Invalid, 96077 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [4478 Valid, 89362 Invalid, 2237 Unknown, 0 Unchecked, 85.8s Time] [2022-12-13 19:10:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44346 states. [2022-12-13 19:10:18,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44346 to 39407. [2022-12-13 19:10:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39407 states, 27828 states have (on average 1.2998418858703464) internal successors, (36172), 28882 states have internal predecessors, (36172), 7886 states have call successors, (7886), 2103 states have call predecessors, (7886), 3692 states have return successors, (23963), 8820 states have call predecessors, (23963), 7883 states have call successors, (23963) [2022-12-13 19:10:18,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39407 states to 39407 states and 68021 transitions. [2022-12-13 19:10:18,539 INFO L78 Accepts]: Start accepts. Automaton has 39407 states and 68021 transitions. Word has length 253 [2022-12-13 19:10:18,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:10:18,540 INFO L495 AbstractCegarLoop]: Abstraction has 39407 states and 68021 transitions. [2022-12-13 19:10:18,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 89 states have (on average 2.9101123595505616) internal successors, (259), 71 states have internal predecessors, (259), 32 states have call successors, (59), 17 states have call predecessors, (59), 25 states have return successors, (52), 38 states have call predecessors, (52), 31 states have call successors, (52) [2022-12-13 19:10:18,540 INFO L276 IsEmpty]: Start isEmpty. Operand 39407 states and 68021 transitions. [2022-12-13 19:10:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-12-13 19:10:18,567 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:10:18,568 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:10:18,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 19:10:18,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 19:10:18,770 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:10:18,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:10:18,771 INFO L85 PathProgramCache]: Analyzing trace with hash -823577053, now seen corresponding path program 2 times [2022-12-13 19:10:18,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:10:18,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222561602] [2022-12-13 19:10:18,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:10:18,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:10:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:10:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 19:10:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:10:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 19:10:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:10:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:10:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:10:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:10:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:10:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:10:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:24,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:10:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:10:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:10:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:10:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:10:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:10:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:10:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:10:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 19:10:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:10:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:10:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-12-13 19:10:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:25,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 19:10:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:26,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:10:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:26,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 19:10:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:26,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:10:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:26,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-12-13 19:10:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 19:10:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:10:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:10:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:28,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 19:10:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 19:10:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:10:28,464 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-12-13 19:10:28,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:10:28,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222561602] [2022-12-13 19:10:28,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222561602] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:10:28,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82124765] [2022-12-13 19:10:28,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:10:28,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:10:28,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:10:28,465 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:10:28,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e443d3-fa56-4dc9-84e8-9a4f594bf7f1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 19:10:32,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:10:32,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:10:32,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 3603 conjuncts, 305 conjunts are in the unsatisfiable core [2022-12-13 19:10:32,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:10:33,652 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 13 treesize of output 9 [2022-12-13 19:10:33,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 19:10:34,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 19:10:34,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-12-13 19:10:35,780 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:10:35,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-12-13 19:10:35,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-12-13 19:10:48,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:48,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:48,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:48,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,154 INFO L321 Elim1Store]: treesize reduction 197, result has 23.6 percent of original size [2022-12-13 19:10:49,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 147 [2022-12-13 19:10:49,223 INFO L321 Elim1Store]: treesize reduction 293, result has 17.7 percent of original size [2022-12-13 19:10:49,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 108 treesize of output 160 [2022-12-13 19:10:49,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,530 INFO L321 Elim1Store]: treesize reduction 197, result has 23.6 percent of original size [2022-12-13 19:10:49,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 147 [2022-12-13 19:10:49,608 INFO L321 Elim1Store]: treesize reduction 293, result has 17.7 percent of original size [2022-12-13 19:10:49,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 108 treesize of output 160 [2022-12-13 19:10:49,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:10:49,978 INFO L321 Elim1Store]: treesize reduction 135, result has 25.4 percent of original size [2022-12-13 19:10:49,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 24 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 156 [2022-12-13 19:10:50,165 INFO L321 Elim1Store]: treesize reduction 774, result has 8.5 percent of original size [2022-12-13 19:10:50,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 123 [2022-12-13 19:10:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 103 proven. 25 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 19:10:51,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:11:12,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82124765] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:11:12,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:11:12,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 44] total 97 [2022-12-13 19:11:12,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273599168] [2022-12-13 19:11:12,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:11:12,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-12-13 19:11:12,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:12,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-12-13 19:11:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=10426, Unknown=20, NotChecked=0, Total=10920 [2022-12-13 19:11:12,134 INFO L87 Difference]: Start difference. First operand 39407 states and 68021 transitions. Second operand has 97 states, 91 states have (on average 2.89010989010989) internal successors, (263), 73 states have internal predecessors, (263), 35 states have call successors, (60), 16 states have call predecessors, (60), 25 states have return successors, (55), 41 states have call predecessors, (55), 34 states have call successors, (55) [2022-12-13 19:11:16,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:18,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:20,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:24,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:26,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:28,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:30,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:32,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:34,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:37,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:39,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:41,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:43,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:45,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:49,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:51,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:54,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:56,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:11:58,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:00,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:02,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:04,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:06,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:08,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:10,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:12,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:16,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:18,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:20,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:23,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:25,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:27,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:29,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:31,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:33,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:35,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:37,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 19:12:39,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]