./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:39:44,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:39:44,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:39:44,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:39:44,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:39:44,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:39:44,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:39:44,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:39:44,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:39:44,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:39:44,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:39:44,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:39:44,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:39:44,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:39:44,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:39:44,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:39:44,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:39:44,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:39:44,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:39:44,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:39:44,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:39:44,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:39:44,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:39:44,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:39:44,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:39:44,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:39:44,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:39:44,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:39:44,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:39:44,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:39:44,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:39:44,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:39:44,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:39:44,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:39:44,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:39:44,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:39:44,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:39:44,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:39:44,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:39:44,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:39:44,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:39:44,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:39:44,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:39:44,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:39:44,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:39:44,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:39:44,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:39:44,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:39:44,483 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:39:44,484 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:39:44,484 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:39:44,484 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:39:44,484 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:39:44,484 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:39:44,484 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:39:44,484 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:39:44,485 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:39:44,485 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:39:44,485 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:39:44,485 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:39:44,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:39:44,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:39:44,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:39:44,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:39:44,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:39:44,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:39:44,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:39:44,487 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:39:44,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:39:44,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:39:44,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:39:44,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:39:44,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:39:44,488 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:39:44,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:39:44,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:39:44,489 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:39:44,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:39:44,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:39:44,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:39:44,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b [2022-12-14 07:39:44,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:39:44,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:39:44,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:39:44,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:39:44,673 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:39:44,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2022-12-14 07:39:47,218 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:39:47,497 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:39:47,497 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2022-12-14 07:39:47,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/data/94a5e4c4b/8151d71128a74b1e9c80d7dcf983c2c6/FLAGd5e991918 [2022-12-14 07:39:47,541 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/data/94a5e4c4b/8151d71128a74b1e9c80d7dcf983c2c6 [2022-12-14 07:39:47,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:39:47,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:39:47,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:39:47,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:39:47,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:39:47,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:39:47" (1/1) ... [2022-12-14 07:39:47,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3623edd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:47, skipping insertion in model container [2022-12-14 07:39:47,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:39:47" (1/1) ... [2022-12-14 07:39:47,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:39:47,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:39:48,179 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_0d41216c-a166-4111-bff1-3b8b16061967/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2022-12-14 07:39:48,203 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 07:39:48,236 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:39:48,236 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 07:39:48,238 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:39:48,239 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:39:48,240 WARN L623 FunctionHandler]: Unknown extern function usbnet_skb_return [2022-12-14 07:39:48,240 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 07:39:48,241 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 07:39:48,242 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:39:48,248 WARN L623 FunctionHandler]: Unknown extern function skb_copy_expand [2022-12-14 07:39:48,249 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 07:39:48,250 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:39:48,276 WARN L623 FunctionHandler]: Unknown extern function usbnet_probe [2022-12-14 07:39:48,277 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 07:39:48,278 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 07:39:48,278 WARN L623 FunctionHandler]: Unknown extern function usbnet_suspend [2022-12-14 07:39:48,279 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 07:39:48,279 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_1 [2022-12-14 07:39:48,283 WARN L623 FunctionHandler]: Unknown extern function ldv_release_2 [2022-12-14 07:39:48,284 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,284 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,285 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,285 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,285 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,286 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 07:39:48,287 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:39:48,287 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:39:48,327 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 07:39:48,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:39:48,356 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:39:48,447 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_0d41216c-a166-4111-bff1-3b8b16061967/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2022-12-14 07:39:48,448 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 07:39:48,452 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:39:48,452 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 07:39:48,454 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:39:48,454 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:39:48,455 WARN L623 FunctionHandler]: Unknown extern function usbnet_skb_return [2022-12-14 07:39:48,455 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 07:39:48,455 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 07:39:48,456 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:39:48,458 WARN L623 FunctionHandler]: Unknown extern function skb_copy_expand [2022-12-14 07:39:48,459 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 07:39:48,459 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:39:48,464 WARN L623 FunctionHandler]: Unknown extern function usbnet_probe [2022-12-14 07:39:48,465 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 07:39:48,465 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 07:39:48,465 WARN L623 FunctionHandler]: Unknown extern function usbnet_suspend [2022-12-14 07:39:48,466 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 07:39:48,466 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_1 [2022-12-14 07:39:48,468 WARN L623 FunctionHandler]: Unknown extern function ldv_release_2 [2022-12-14 07:39:48,468 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,469 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,469 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,469 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,470 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 07:39:48,470 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 07:39:48,470 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:39:48,471 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:39:48,475 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 07:39:48,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:39:48,496 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:39:48,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48 WrapperNode [2022-12-14 07:39:48,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:39:48,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:39:48,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:39:48,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:39:48,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,564 INFO L138 Inliner]: procedures = 101, calls = 368, calls flagged for inlining = 41, calls inlined = 38, statements flattened = 961 [2022-12-14 07:39:48,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:39:48,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:39:48,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:39:48,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:39:48,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,635 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:39:48,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:39:48,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:39:48,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:39:48,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (1/1) ... [2022-12-14 07:39:48,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:39:48,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:39:48,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:39:48,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:39:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:39:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 07:39:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 07:39:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 07:39:48,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 07:39:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:39:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-12-14 07:39:48,732 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-12-14 07:39:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 07:39:48,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 07:39:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:39:48,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:39:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-12-14 07:39:48,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-12-14 07:39:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:39:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 07:39:48,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 07:39:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-12-14 07:39:48,733 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-12-14 07:39:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 07:39:48,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 07:39:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 07:39:48,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 07:39:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 07:39:48,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 07:39:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:39:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:39:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:39:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:39:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:39:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_tx_fixup [2022-12-14 07:39:48,735 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_tx_fixup [2022-12-14 07:39:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_rx_fixup [2022-12-14 07:39:48,735 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_rx_fixup [2022-12-14 07:39:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:39:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:39:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 07:39:48,735 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 07:39:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:39:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 07:39:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 07:39:48,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 07:39:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:39:48,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:39:48,964 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:39:48,966 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:39:49,053 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 07:39:50,411 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:39:50,569 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:39:50,569 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:39:50,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:39:50 BoogieIcfgContainer [2022-12-14 07:39:50,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:39:50,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:39:50,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:39:50,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:39:50,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:39:47" (1/3) ... [2022-12-14 07:39:50,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f49959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:39:50, skipping insertion in model container [2022-12-14 07:39:50,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:39:48" (2/3) ... [2022-12-14 07:39:50,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f49959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:39:50, skipping insertion in model container [2022-12-14 07:39:50,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:39:50" (3/3) ... [2022-12-14 07:39:50,578 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2022-12-14 07:39:50,592 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:39:50,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:39:50,632 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:39:50,636 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5dc08832, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:39:50,637 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:39:50,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 125 states have internal predecessors, (175), 36 states have call successors, (36), 14 states have call predecessors, (36), 13 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-12-14 07:39:50,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 07:39:50,648 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:39:50,649 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 07:39:50,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:39:50,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:39:50,653 INFO L85 PathProgramCache]: Analyzing trace with hash -319839148, now seen corresponding path program 1 times [2022-12-14 07:39:50,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:39:50,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361958686] [2022-12-14 07:39:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:39:50,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:39:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:39:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 07:39:51,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:39:51,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361958686] [2022-12-14 07:39:51,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361958686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:39:51,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:39:51,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:39:51,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119718353] [2022-12-14 07:39:51,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:39:51,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:39:51,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:39:51,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:39:51,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:39:51,086 INFO L87 Difference]: Start difference. First operand has 170 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 125 states have internal predecessors, (175), 36 states have call successors, (36), 14 states have call predecessors, (36), 13 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 07:39:52,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:39:52,771 INFO L93 Difference]: Finished difference Result 470 states and 684 transitions. [2022-12-14 07:39:52,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:39:52,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2022-12-14 07:39:52,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:39:52,784 INFO L225 Difference]: With dead ends: 470 [2022-12-14 07:39:52,784 INFO L226 Difference]: Without dead ends: 300 [2022-12-14 07:39:52,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:39:52,791 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 202 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:39:52,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 429 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 07:39:52,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-12-14 07:39:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2022-12-14 07:39:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 220 states have (on average 1.4227272727272726) internal successors, (313), 220 states have internal predecessors, (313), 56 states have call successors, (56), 24 states have call predecessors, (56), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-12-14 07:39:52,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 424 transitions. [2022-12-14 07:39:52,854 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 424 transitions. Word has length 33 [2022-12-14 07:39:52,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:39:52,855 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 424 transitions. [2022-12-14 07:39:52,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 07:39:52,855 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 424 transitions. [2022-12-14 07:39:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 07:39:52,858 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:39:52,858 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:39:52,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:39:52,859 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:39:52,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:39:52,859 INFO L85 PathProgramCache]: Analyzing trace with hash 615510906, now seen corresponding path program 1 times [2022-12-14 07:39:52,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:39:52,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748571403] [2022-12-14 07:39:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:39:52,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:39:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:39:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 07:39:53,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:39:53,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748571403] [2022-12-14 07:39:53,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748571403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:39:53,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:39:53,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:39:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713715817] [2022-12-14 07:39:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:39:53,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:39:53,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:39:53,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:39:53,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:39:53,092 INFO L87 Difference]: Start difference. First operand 300 states and 424 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 07:39:54,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:39:54,377 INFO L93 Difference]: Finished difference Result 588 states and 838 transitions. [2022-12-14 07:39:54,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:39:54,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2022-12-14 07:39:54,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:39:54,383 INFO L225 Difference]: With dead ends: 588 [2022-12-14 07:39:54,383 INFO L226 Difference]: Without dead ends: 583 [2022-12-14 07:39:54,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:39:54,385 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 208 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:39:54,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 640 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 07:39:54,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-12-14 07:39:54,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 581. [2022-12-14 07:39:54,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 428 states have (on average 1.425233644859813) internal successors, (610), 428 states have internal predecessors, (610), 107 states have call successors, (107), 46 states have call predecessors, (107), 45 states have return successors, (112), 106 states have call predecessors, (112), 106 states have call successors, (112) [2022-12-14 07:39:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 829 transitions. [2022-12-14 07:39:54,435 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 829 transitions. Word has length 42 [2022-12-14 07:39:54,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:39:54,436 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 829 transitions. [2022-12-14 07:39:54,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 07:39:54,436 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 829 transitions. [2022-12-14 07:39:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 07:39:54,443 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:39:54,443 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-14 07:39:54,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:39:54,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:39:54,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:39:54,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1557853715, now seen corresponding path program 1 times [2022-12-14 07:39:54,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:39:54,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443237996] [2022-12-14 07:39:54,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:39:54,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:39:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:39:54,586 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-14 07:39:54,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:39:54,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443237996] [2022-12-14 07:39:54,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443237996] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:39:54,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:39:54,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:39:54,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565578936] [2022-12-14 07:39:54,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:39:54,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:39:54,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:39:54,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:39:54,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:39:54,589 INFO L87 Difference]: Start difference. First operand 581 states and 829 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 07:39:55,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:39:55,363 INFO L93 Difference]: Finished difference Result 1307 states and 1868 transitions. [2022-12-14 07:39:55,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:39:55,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-12-14 07:39:55,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:39:55,367 INFO L225 Difference]: With dead ends: 1307 [2022-12-14 07:39:55,367 INFO L226 Difference]: Without dead ends: 738 [2022-12-14 07:39:55,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:39:55,369 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 75 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:39:55,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 371 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 07:39:55,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-12-14 07:39:55,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 733. [2022-12-14 07:39:55,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 557 states have (on average 1.4398563734290843) internal successors, (802), 557 states have internal predecessors, (802), 120 states have call successors, (120), 56 states have call predecessors, (120), 55 states have return successors, (125), 119 states have call predecessors, (125), 119 states have call successors, (125) [2022-12-14 07:39:55,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1047 transitions. [2022-12-14 07:39:55,402 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1047 transitions. Word has length 105 [2022-12-14 07:39:55,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:39:55,402 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 1047 transitions. [2022-12-14 07:39:55,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 07:39:55,402 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1047 transitions. [2022-12-14 07:39:55,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 07:39:55,405 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:39:55,406 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:39:55,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:39:55,406 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:39:55,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:39:55,406 INFO L85 PathProgramCache]: Analyzing trace with hash -703016475, now seen corresponding path program 1 times [2022-12-14 07:39:55,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:39:55,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874430831] [2022-12-14 07:39:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:39:55,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:39:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:39:55,536 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-12-14 07:39:55,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:39:55,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874430831] [2022-12-14 07:39:55,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874430831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:39:55,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:39:55,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:39:55,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209906003] [2022-12-14 07:39:55,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:39:55,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:39:55,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:39:55,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:39:55,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:39:55,539 INFO L87 Difference]: Start difference. First operand 733 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 07:39:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:39:56,420 INFO L93 Difference]: Finished difference Result 1949 states and 2788 transitions. [2022-12-14 07:39:56,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:39:56,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2022-12-14 07:39:56,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:39:56,425 INFO L225 Difference]: With dead ends: 1949 [2022-12-14 07:39:56,425 INFO L226 Difference]: Without dead ends: 1236 [2022-12-14 07:39:56,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:39:56,427 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 185 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:39:56,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 446 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 07:39:56,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-12-14 07:39:56,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1231. [2022-12-14 07:39:56,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 941 states have (on average 1.4261424017003188) internal successors, (1342), 941 states have internal predecessors, (1342), 194 states have call successors, (194), 96 states have call predecessors, (194), 95 states have return successors, (201), 193 states have call predecessors, (201), 193 states have call successors, (201) [2022-12-14 07:39:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1737 transitions. [2022-12-14 07:39:56,477 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1737 transitions. Word has length 123 [2022-12-14 07:39:56,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:39:56,477 INFO L495 AbstractCegarLoop]: Abstraction has 1231 states and 1737 transitions. [2022-12-14 07:39:56,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 07:39:56,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1737 transitions. [2022-12-14 07:39:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 07:39:56,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:39:56,480 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:39:56,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:39:56,480 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:39:56,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:39:56,481 INFO L85 PathProgramCache]: Analyzing trace with hash -671362383, now seen corresponding path program 1 times [2022-12-14 07:39:56,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:39:56,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305635329] [2022-12-14 07:39:56,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:39:56,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:39:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:39:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-14 07:39:56,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:39:56,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305635329] [2022-12-14 07:39:56,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305635329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:39:56,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:39:56,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:39:56,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995968568] [2022-12-14 07:39:56,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:39:56,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:39:56,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:39:56,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:39:56,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:39:56,772 INFO L87 Difference]: Start difference. First operand 1231 states and 1737 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:39:58,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:39:58,900 INFO L93 Difference]: Finished difference Result 2496 states and 3545 transitions. [2022-12-14 07:39:58,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:39:58,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2022-12-14 07:39:58,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:39:58,911 INFO L225 Difference]: With dead ends: 2496 [2022-12-14 07:39:58,912 INFO L226 Difference]: Without dead ends: 1285 [2022-12-14 07:39:58,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:39:58,918 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 2 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:39:58,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 765 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 07:39:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2022-12-14 07:39:58,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1271. [2022-12-14 07:39:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 969 states have (on average 1.413828689370485) internal successors, (1370), 973 states have internal predecessors, (1370), 194 states have call successors, (194), 96 states have call predecessors, (194), 107 states have return successors, (221), 201 states have call predecessors, (221), 193 states have call successors, (221) [2022-12-14 07:39:58,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1785 transitions. [2022-12-14 07:39:58,976 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1785 transitions. Word has length 123 [2022-12-14 07:39:58,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:39:58,976 INFO L495 AbstractCegarLoop]: Abstraction has 1271 states and 1785 transitions. [2022-12-14 07:39:58,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 07:39:58,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1785 transitions. [2022-12-14 07:39:58,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-14 07:39:58,981 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:39:58,981 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:39:58,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:39:58,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:39:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:39:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1467353829, now seen corresponding path program 1 times [2022-12-14 07:39:58,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:39:58,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015548686] [2022-12-14 07:39:58,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:39:58,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:39:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:39:59,278 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-14 07:39:59,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:39:59,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015548686] [2022-12-14 07:39:59,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015548686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:39:59,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:39:59,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 07:39:59,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144360760] [2022-12-14 07:39:59,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:39:59,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 07:39:59,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:39:59,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 07:39:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:39:59,280 INFO L87 Difference]: Start difference. First operand 1271 states and 1785 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 7 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 07:40:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:40:04,918 INFO L93 Difference]: Finished difference Result 2728 states and 3881 transitions. [2022-12-14 07:40:04,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 07:40:04,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 7 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2022-12-14 07:40:04,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:40:04,925 INFO L225 Difference]: With dead ends: 2728 [2022-12-14 07:40:04,925 INFO L226 Difference]: Without dead ends: 1477 [2022-12-14 07:40:04,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 07:40:04,929 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 28 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:40:04,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1752 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 07:40:04,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-12-14 07:40:04,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1295. [2022-12-14 07:40:04,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 989 states have (on average 1.39737108190091) internal successors, (1382), 989 states have internal predecessors, (1382), 194 states have call successors, (194), 96 states have call predecessors, (194), 111 states have return successors, (225), 209 states have call predecessors, (225), 193 states have call successors, (225) [2022-12-14 07:40:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1801 transitions. [2022-12-14 07:40:04,970 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1801 transitions. Word has length 127 [2022-12-14 07:40:04,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:40:04,970 INFO L495 AbstractCegarLoop]: Abstraction has 1295 states and 1801 transitions. [2022-12-14 07:40:04,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 7 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 07:40:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1801 transitions. [2022-12-14 07:40:04,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 07:40:04,972 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:40:04,973 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 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] [2022-12-14 07:40:04,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:40:04,973 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:40:04,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:40:04,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1814223554, now seen corresponding path program 1 times [2022-12-14 07:40:04,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:40:04,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708140178] [2022-12-14 07:40:04,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:40:04,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:40:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:40:05,292 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-12-14 07:40:05,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:40:05,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708140178] [2022-12-14 07:40:05,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708140178] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:40:05,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185256550] [2022-12-14 07:40:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:40:05,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:40:05,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:40:05,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:40:05,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:40:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:40:05,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:40:05,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:40:05,704 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-14 07:40:05,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:40:05,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185256550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:40:05,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:40:05,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-12-14 07:40:05,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526739599] [2022-12-14 07:40:05,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:40:05,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:40:05,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:40:05,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:40:05,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:40:05,706 INFO L87 Difference]: Start difference. First operand 1295 states and 1801 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 07:40:07,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:40:08,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:40:08,035 INFO L93 Difference]: Finished difference Result 2578 states and 3589 transitions. [2022-12-14 07:40:08,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:40:08,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2022-12-14 07:40:08,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:40:08,039 INFO L225 Difference]: With dead ends: 2578 [2022-12-14 07:40:08,039 INFO L226 Difference]: Without dead ends: 1296 [2022-12-14 07:40:08,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:40:08,042 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:40:08,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 582 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 07:40:08,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2022-12-14 07:40:08,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1296. [2022-12-14 07:40:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 990 states have (on average 1.396969696969697) internal successors, (1383), 990 states have internal predecessors, (1383), 194 states have call successors, (194), 96 states have call predecessors, (194), 111 states have return successors, (225), 209 states have call predecessors, (225), 193 states have call successors, (225) [2022-12-14 07:40:08,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1802 transitions. [2022-12-14 07:40:08,094 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1802 transitions. Word has length 133 [2022-12-14 07:40:08,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:40:08,094 INFO L495 AbstractCegarLoop]: Abstraction has 1296 states and 1802 transitions. [2022-12-14 07:40:08,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 07:40:08,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1802 transitions. [2022-12-14 07:40:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-14 07:40:08,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:40:08,098 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 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] [2022-12-14 07:40:08,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:40:08,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:40:08,299 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:40:08,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:40:08,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1115223570, now seen corresponding path program 1 times [2022-12-14 07:40:08,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:40:08,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223683455] [2022-12-14 07:40:08,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:40:08,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:40:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:40:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-14 07:40:08,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:40:08,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223683455] [2022-12-14 07:40:08,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223683455] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:40:08,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155886371] [2022-12-14 07:40:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:40:08,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:40:08,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:40:08,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:40:08,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d41216c-a166-4111-bff1-3b8b16061967/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:40:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:40:09,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 07:40:09,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:40:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-14 07:40:09,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:40:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-14 07:40:09,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155886371] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:40:09,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1064979416] [2022-12-14 07:40:09,476 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-12-14 07:40:09,476 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:40:09,479 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:40:09,483 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:40:09,483 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:40:10,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 44 select indices, 44 select index equivalence classes, 624 disjoint index pairs (out of 946 index pairs), introduced 45 new quantified variables, introduced 0 case distinctions, treesize of input 468 treesize of output 647 [2022-12-14 07:40:10,652 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 400 treesize of output 321 [2022-12-14 07:40:10,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:10,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:11,824 INFO L321 Elim1Store]: treesize reduction 896, result has 25.4 percent of original size [2022-12-14 07:40:11,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 27 select indices, 27 select index equivalence classes, 304 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 72 case distinctions, treesize of input 149 treesize of output 405 [2022-12-14 07:40:12,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 320 [2022-12-14 07:40:12,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:12,850 INFO L217 Elim1Store]: Index analysis took 235 ms [2022-12-14 07:40:13,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 115 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 225 [2022-12-14 07:40:13,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 85 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 182 [2022-12-14 07:40:13,631 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 400 treesize of output 321 [2022-12-14 07:40:13,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:13,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 24 select indices, 24 select index equivalence classes, 327 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 203 [2022-12-14 07:40:14,376 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 7 treesize of output 6 [2022-12-14 07:40:14,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 07:40:14,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 07:40:14,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:14,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:14,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 82 [2022-12-14 07:40:15,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 360 [2022-12-14 07:40:15,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-14 07:40:15,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-12-14 07:40:15,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:15,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:15,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 327 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 79 [2022-12-14 07:40:16,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:16,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:16,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 82 [2022-12-14 07:40:16,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:16,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:16,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 327 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 79 [2022-12-14 07:40:16,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 360 [2022-12-14 07:40:16,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-14 07:40:16,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-12-14 07:40:21,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:40:21,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:40:21,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:40:26,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:40:26,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:40:26,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:40:26,773 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 11 treesize of output 7 [2022-12-14 07:40:26,777 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 11 treesize of output 7 [2022-12-14 07:40:26,780 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 [2022-12-14 07:40:26,808 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 07:40:26,808 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 1 case distinctions, treesize of input 51 treesize of output 54 [2022-12-14 07:40:26,831 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 07:40:26,831 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 1 case distinctions, treesize of input 49 treesize of output 52 [2022-12-14 07:40:26,852 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 07:40:26,853 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 1 case distinctions, treesize of input 43 treesize of output 46 [2022-12-14 07:40:26,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 07:40:26,878 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 14 treesize of output 10 [2022-12-14 07:40:26,882 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 14 treesize of output 10 [2022-12-14 07:40:32,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:40:32,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:40:32,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:40:35,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-12-14 07:40:35,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:40:35,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:40:38,459 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-12-14 07:40:38,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 16 [2022-12-14 07:40:38,482 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-12-14 07:40:38,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 37 [2022-12-14 07:40:38,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 07:40:38,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 07:40:38,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 07:40:38,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 07:40:38,698 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 15 treesize of output 11 [2022-12-14 07:40:38,703 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 23 treesize of output 1 [2022-12-14 07:40:38,709 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 15 treesize of output 11 [2022-12-14 07:40:38,759 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:40:38,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 43 treesize of output 45 [2022-12-14 07:40:38,785 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:40:38,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 37 treesize of output 39 [2022-12-14 07:40:38,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:38,866 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:40:38,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 86 [2022-12-14 07:40:40,016 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:40:40,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 43 treesize of output 45 [2022-12-14 07:40:40,037 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:40:40,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 37 treesize of output 39 [2022-12-14 07:40:40,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:40:40,123 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:40:40,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 86 [2022-12-14 07:40:40,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-12-14 07:40:40,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 07:40:40,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-12-14 07:40:41,037 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 7 treesize of output 3 [2022-12-14 07:40:41,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:40:41,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:40:41,082 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 7 treesize of output 3 [2022-12-14 07:40:41,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:40:41,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:40:41,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-12-14 07:40:41,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 07:40:41,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-12-14 07:40:47,340 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 187 DAG size of output: 121 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 07:40:47,341 INFO L321 Elim1Store]: treesize reduction 784, result has 26.9 percent of original size [2022-12-14 07:40:47,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 17 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 285 treesize of output 546 [2022-12-14 07:40:47,568 INFO L217 Elim1Store]: Index analysis took 173 ms [2022-12-14 07:40:54,662 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 173 DAG size of output: 121 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 07:40:54,663 INFO L321 Elim1Store]: treesize reduction 784, result has 26.9 percent of original size [2022-12-14 07:40:54,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 261 treesize of output 522 [2022-12-14 07:40:56,251 INFO L321 Elim1Store]: treesize reduction 88, result has 63.2 percent of original size [2022-12-14 07:40:56,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 326 [2022-12-14 07:40:57,254 INFO L321 Elim1Store]: treesize reduction 396, result has 16.3 percent of original size [2022-12-14 07:40:57,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 274 treesize of output 319 [2022-12-14 07:40:58,025 INFO L321 Elim1Store]: treesize reduction 396, result has 16.3 percent of original size [2022-12-14 07:40:58,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 274 treesize of output 319 [2022-12-14 07:40:58,670 INFO L321 Elim1Store]: treesize reduction 294, result has 27.0 percent of original size [2022-12-14 07:40:58,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 166 [2022-12-14 07:40:59,238 INFO L321 Elim1Store]: treesize reduction 418, result has 25.8 percent of original size [2022-12-14 07:40:59,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 260 [2022-12-14 07:51:44,492 WARN L233 SmtUtils]: Spent 1.48m on a formula simplification that was a NOOP. DAG size: 560 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 07:52:47,148 WARN L233 SmtUtils]: Spent 38.73s on a formula simplification that was a NOOP. DAG size: 549 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)