./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.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_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:27:57,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:27:57,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:27:57,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:27:57,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:27:57,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:27:57,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:27:57,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:27:57,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:27:57,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:27:57,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:27:57,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:27:57,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:27:57,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:27:57,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:27:57,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:27:57,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:27:57,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:27:57,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:27:57,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:27:57,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:27:57,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:27:57,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:27:57,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:27:57,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:27:57,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:27:57,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:27:57,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:27:57,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:27:57,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:27:57,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:27:57,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:27:57,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:27:57,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:27:57,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:27:57,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:27:57,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:27:57,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:27:57,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:27:57,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:27:57,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:27:57,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 22:27:57,368 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:27:57,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:27:57,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:27:57,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:27:57,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:27:57,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:27:57,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:27:57,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:27:57,370 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:27:57,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:27:57,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:27:57,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:27:57,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:27:57,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:27:57,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:27:57,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:27:57,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:27:57,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:27:57,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:27:57,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:27:57,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:27:57,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:27:57,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:27:57,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:27:57,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:27:57,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:27:57,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:27:57,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:27:57,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:27:57,373 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:27:57,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:27:57,374 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:27:57,374 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 [2022-12-13 22:27:57,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:27:57,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:27:57,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:27:57,575 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:27:57,576 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:27:57,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2022-12-13 22:28:00,160 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:28:00,465 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:28:00,465 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2022-12-13 22:28:00,482 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/data/9111ae87b/1932dcaee0e047d0949faaee0bde6fa2/FLAG9b0dfeb4b [2022-12-13 22:28:00,737 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/data/9111ae87b/1932dcaee0e047d0949faaee0bde6fa2 [2022-12-13 22:28:00,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:28:00,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:28:00,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:28:00,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:28:00,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:28:00,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:28:00" (1/1) ... [2022-12-13 22:28:00,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b06700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:00, skipping insertion in model container [2022-12-13 22:28:00,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:28:00" (1/1) ... [2022-12-13 22:28:00,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:28:00,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:28:01,220 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-12-13 22:28:01,354 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 22:28:01,358 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 22:28:01,362 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,364 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,366 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,368 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,369 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,371 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,372 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 22:28:01,376 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,379 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,380 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,382 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,384 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,394 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,399 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,400 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,403 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,404 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,406 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,409 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,424 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-13 22:28:01,424 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 22:28:01,428 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,429 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,430 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,434 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,435 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 22:28:01,436 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 22:28:01,437 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_register [2022-12-13 22:28:01,438 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 22:28:01,439 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 22:28:01,442 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_unregister [2022-12-13 22:28:01,442 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 22:28:01,443 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 22:28:01,454 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-12-13 22:28:01,455 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-12-13 22:28:01,455 WARN L623 FunctionHandler]: Unknown extern function strcspn [2022-12-13 22:28:01,457 WARN L623 FunctionHandler]: Unknown extern function strncasecmp [2022-12-13 22:28:01,461 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,462 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,465 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,466 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-13 22:28:01,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,467 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_resources [2022-12-13 22:28:01,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,468 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-13 22:28:01,468 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,468 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-13 22:28:01,471 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-13 22:28:01,504 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 22:28:01,508 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_late_2 [2022-12-13 22:28:01,508 WARN L623 FunctionHandler]: Unknown extern function ldv_restore_early_2 [2022-12-13 22:28:01,509 WARN L623 FunctionHandler]: Unknown extern function ldv_resume_early_2 [2022-12-13 22:28:01,509 WARN L623 FunctionHandler]: Unknown extern function ldv_thaw_early_2 [2022-12-13 22:28:01,510 WARN L623 FunctionHandler]: Unknown extern function ldv_resume_noirq_2 [2022-12-13 22:28:01,510 WARN L623 FunctionHandler]: Unknown extern function ldv_freeze_noirq_2 [2022-12-13 22:28:01,510 WARN L623 FunctionHandler]: Unknown extern function ldv_prepare_2 [2022-12-13 22:28:01,511 WARN L623 FunctionHandler]: Unknown extern function ldv_freeze_late_2 [2022-12-13 22:28:01,511 WARN L623 FunctionHandler]: Unknown extern function ldv_thaw_noirq_2 [2022-12-13 22:28:01,512 WARN L623 FunctionHandler]: Unknown extern function ldv_poweroff_noirq_2 [2022-12-13 22:28:01,512 WARN L623 FunctionHandler]: Unknown extern function ldv_poweroff_late_2 [2022-12-13 22:28:01,513 WARN L623 FunctionHandler]: Unknown extern function ldv_restore_noirq_2 [2022-12-13 22:28:01,513 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_noirq_2 [2022-12-13 22:28:01,513 WARN L623 FunctionHandler]: Unknown extern function ldv_complete_2 [2022-12-13 22:28:01,515 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 22:28:01,515 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 22:28:01,516 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 22:28:01,516 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-13 22:28:01,517 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 22:28:01,517 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 22:28:01,517 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 22:28:01,518 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 22:28:01,518 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 22:28:01,518 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-12-13 22:28:01,519 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-13 22:28:01,519 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-13 22:28:01,522 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_ac3237f8-5491-429a-a756-dec170b57810/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2022-12-13 22:28:01,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:28:01,687 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:28:01,748 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-12-13 22:28:01,786 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 22:28:01,787 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 22:28:01,790 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,791 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,793 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,794 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,796 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,797 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,798 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-13 22:28:01,801 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,803 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,805 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,806 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,808 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,812 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,815 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,815 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,816 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,817 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,817 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,818 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-13 22:28:01,828 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-13 22:28:01,828 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 22:28:01,830 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,830 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,834 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 22:28:01,835 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-13 22:28:01,835 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_register [2022-12-13 22:28:01,836 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 22:28:01,837 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 22:28:01,838 WARN L623 FunctionHandler]: Unknown extern function hwmon_device_unregister [2022-12-13 22:28:01,838 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 22:28:01,839 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-13 22:28:01,843 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-12-13 22:28:01,844 WARN L623 FunctionHandler]: Unknown extern function dmi_get_system_info [2022-12-13 22:28:01,844 WARN L623 FunctionHandler]: Unknown extern function strcspn [2022-12-13 22:28:01,845 WARN L623 FunctionHandler]: Unknown extern function strncasecmp [2022-12-13 22:28:01,847 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-13 22:28:01,848 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,849 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,850 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-13 22:28:01,850 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,850 WARN L623 FunctionHandler]: Unknown extern function platform_device_add_resources [2022-12-13 22:28:01,851 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,851 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-13 22:28:01,851 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 22:28:01,852 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-13 22:28:01,852 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-13 22:28:01,854 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 22:28:01,857 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_late_2 [2022-12-13 22:28:01,858 WARN L623 FunctionHandler]: Unknown extern function ldv_restore_early_2 [2022-12-13 22:28:01,858 WARN L623 FunctionHandler]: Unknown extern function ldv_resume_early_2 [2022-12-13 22:28:01,858 WARN L623 FunctionHandler]: Unknown extern function ldv_thaw_early_2 [2022-12-13 22:28:01,859 WARN L623 FunctionHandler]: Unknown extern function ldv_resume_noirq_2 [2022-12-13 22:28:01,859 WARN L623 FunctionHandler]: Unknown extern function ldv_freeze_noirq_2 [2022-12-13 22:28:01,859 WARN L623 FunctionHandler]: Unknown extern function ldv_prepare_2 [2022-12-13 22:28:01,860 WARN L623 FunctionHandler]: Unknown extern function ldv_freeze_late_2 [2022-12-13 22:28:01,860 WARN L623 FunctionHandler]: Unknown extern function ldv_thaw_noirq_2 [2022-12-13 22:28:01,861 WARN L623 FunctionHandler]: Unknown extern function ldv_poweroff_noirq_2 [2022-12-13 22:28:01,861 WARN L623 FunctionHandler]: Unknown extern function ldv_poweroff_late_2 [2022-12-13 22:28:01,861 WARN L623 FunctionHandler]: Unknown extern function ldv_restore_noirq_2 [2022-12-13 22:28:01,862 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_noirq_2 [2022-12-13 22:28:01,862 WARN L623 FunctionHandler]: Unknown extern function ldv_complete_2 [2022-12-13 22:28:01,863 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 22:28:01,864 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 22:28:01,864 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 22:28:01,864 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-13 22:28:01,865 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 22:28:01,865 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 22:28:01,865 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 22:28:01,866 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-13 22:28:01,866 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 22:28:01,866 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-12-13 22:28:01,867 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-13 22:28:01,867 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-13 22:28:01,868 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_ac3237f8-5491-429a-a756-dec170b57810/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2022-12-13 22:28:01,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:28:02,015 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:28:02,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02 WrapperNode [2022-12-13 22:28:02,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:28:02,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:28:02,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:28:02,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:28:02,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,205 INFO L138 Inliner]: procedures = 165, calls = 5858, calls flagged for inlining = 57, calls inlined = 52, statements flattened = 7002 [2022-12-13 22:28:02,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:28:02,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:28:02,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:28:02,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:28:02,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,328 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:28:02,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:28:02,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:28:02,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:28:02,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (1/1) ... [2022-12-13 22:28:02,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:28:02,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:28:02,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:28:02,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:28:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2022-12-13 22:28:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2022-12-13 22:28:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-12-13 22:28:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-12-13 22:28:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2022-12-13 22:28:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2022-12-13 22:28:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-13 22:28:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-13 22:28:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-12-13 22:28:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-12-13 22:28:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_remove [2022-12-13 22:28:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_remove [2022-12-13 22:28:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2022-12-13 22:28:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2022-12-13 22:28:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-13 22:28:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-13 22:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 22:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-13 22:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-13 22:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2022-12-13 22:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2022-12-13 22:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 22:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 22:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-13 22:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-13 22:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-13 22:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-13 22:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_probe [2022-12-13 22:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_probe [2022-12-13 22:28:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-12-13 22:28:02,415 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2022-12-13 22:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 22:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2022-12-13 22:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-13 22:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 22:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2022-12-13 22:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-12-13 22:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-13 22:28:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:28:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2022-12-13 22:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-13 22:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2022-12-13 22:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-12-13 22:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-12-13 22:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:28:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-12-13 22:28:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-12-13 22:28:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:28:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:28:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2022-12-13 22:28:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2022-12-13 22:28:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-13 22:28:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-13 22:28:02,648 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:28:02,650 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:28:05,241 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-13 22:28:14,466 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:28:14,474 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:28:14,474 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:28:14,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:28:14 BoogieIcfgContainer [2022-12-13 22:28:14,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:28:14,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:28:14,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:28:14,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:28:14,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:28:00" (1/3) ... [2022-12-13 22:28:14,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b79070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:28:14, skipping insertion in model container [2022-12-13 22:28:14,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:28:02" (2/3) ... [2022-12-13 22:28:14,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b79070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:28:14, skipping insertion in model container [2022-12-13 22:28:14,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:28:14" (3/3) ... [2022-12-13 22:28:14,482 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2022-12-13 22:28:14,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:28:14,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 22:28:14,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:28:14,545 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3edb445d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:28:14,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 22:28:14,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 558 states, 425 states have (on average 1.4376470588235295) internal successors, (611), 438 states have internal predecessors, (611), 101 states have call successors, (101), 31 states have call predecessors, (101), 30 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2022-12-13 22:28:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 22:28:14,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:14,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:14,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:14,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:14,564 INFO L85 PathProgramCache]: Analyzing trace with hash -57567707, now seen corresponding path program 1 times [2022-12-13 22:28:14,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:14,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633820796] [2022-12-13 22:28:14,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:14,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:15,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 22:28:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:15,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:28:15,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:15,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633820796] [2022-12-13 22:28:15,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633820796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:15,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:15,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:28:15,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101916894] [2022-12-13 22:28:15,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:15,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:28:15,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:15,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:28:15,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:28:15,566 INFO L87 Difference]: Start difference. First operand has 558 states, 425 states have (on average 1.4376470588235295) internal successors, (611), 438 states have internal predecessors, (611), 101 states have call successors, (101), 31 states have call predecessors, (101), 30 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:28:16,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:16,032 INFO L93 Difference]: Finished difference Result 1557 states and 2280 transitions. [2022-12-13 22:28:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:28:16,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-12-13 22:28:16,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:16,053 INFO L225 Difference]: With dead ends: 1557 [2022-12-13 22:28:16,053 INFO L226 Difference]: Without dead ends: 985 [2022-12-13 22:28:16,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:28:16,063 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 615 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:16,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 1638 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:28:16,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2022-12-13 22:28:16,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 971. [2022-12-13 22:28:16,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 738 states have (on average 1.4010840108401084) internal successors, (1034), 749 states have internal predecessors, (1034), 176 states have call successors, (176), 57 states have call predecessors, (176), 56 states have return successors, (171), 170 states have call predecessors, (171), 171 states have call successors, (171) [2022-12-13 22:28:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1381 transitions. [2022-12-13 22:28:16,174 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1381 transitions. Word has length 23 [2022-12-13 22:28:16,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:16,174 INFO L495 AbstractCegarLoop]: Abstraction has 971 states and 1381 transitions. [2022-12-13 22:28:16,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:28:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1381 transitions. [2022-12-13 22:28:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 22:28:16,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:16,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:16,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:28:16,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:16,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:16,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1979915478, now seen corresponding path program 1 times [2022-12-13 22:28:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:16,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075228131] [2022-12-13 22:28:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:16,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:17,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:28:17,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:17,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075228131] [2022-12-13 22:28:17,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075228131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:17,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:17,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:28:17,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863841690] [2022-12-13 22:28:17,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:17,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:28:17,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:17,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:28:17,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:28:17,051 INFO L87 Difference]: Start difference. First operand 971 states and 1381 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:28:17,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:17,419 INFO L93 Difference]: Finished difference Result 2748 states and 3913 transitions. [2022-12-13 22:28:17,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:28:17,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-12-13 22:28:17,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:17,436 INFO L225 Difference]: With dead ends: 2748 [2022-12-13 22:28:17,436 INFO L226 Difference]: Without dead ends: 1780 [2022-12-13 22:28:17,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:28:17,443 INFO L413 NwaCegarLoop]: 1343 mSDtfsCounter, 756 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:17,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 2026 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:28:17,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2022-12-13 22:28:17,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1771. [2022-12-13 22:28:17,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1340 states have (on average 1.4029850746268657) internal successors, (1880), 1356 states have internal predecessors, (1880), 323 states have call successors, (323), 108 states have call predecessors, (323), 107 states have return successors, (318), 318 states have call predecessors, (318), 318 states have call successors, (318) [2022-12-13 22:28:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2521 transitions. [2022-12-13 22:28:17,545 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2521 transitions. Word has length 21 [2022-12-13 22:28:17,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:17,545 INFO L495 AbstractCegarLoop]: Abstraction has 1771 states and 2521 transitions. [2022-12-13 22:28:17,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:28:17,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2521 transitions. [2022-12-13 22:28:17,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 22:28:17,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:17,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:17,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:28:17,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:17,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:17,549 INFO L85 PathProgramCache]: Analyzing trace with hash 987012277, now seen corresponding path program 1 times [2022-12-13 22:28:17,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:17,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952641107] [2022-12-13 22:28:17,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:17,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:18,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:28:18,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:18,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952641107] [2022-12-13 22:28:18,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952641107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:18,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:18,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:28:18,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101934107] [2022-12-13 22:28:18,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:18,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:28:18,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:18,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:28:18,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:28:18,354 INFO L87 Difference]: Start difference. First operand 1771 states and 2521 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:28:19,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:19,264 INFO L93 Difference]: Finished difference Result 1855 states and 2666 transitions. [2022-12-13 22:28:19,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:28:19,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2022-12-13 22:28:19,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:19,276 INFO L225 Difference]: With dead ends: 1855 [2022-12-13 22:28:19,277 INFO L226 Difference]: Without dead ends: 1852 [2022-12-13 22:28:19,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:28:19,279 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 810 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:19,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1133 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 22:28:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-12-13 22:28:19,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1770. [2022-12-13 22:28:19,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1340 states have (on average 1.4022388059701492) internal successors, (1879), 1355 states have internal predecessors, (1879), 322 states have call successors, (322), 108 states have call predecessors, (322), 107 states have return successors, (318), 318 states have call predecessors, (318), 318 states have call successors, (318) [2022-12-13 22:28:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2519 transitions. [2022-12-13 22:28:19,371 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2519 transitions. Word has length 30 [2022-12-13 22:28:19,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:19,371 INFO L495 AbstractCegarLoop]: Abstraction has 1770 states and 2519 transitions. [2022-12-13 22:28:19,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:28:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2519 transitions. [2022-12-13 22:28:19,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-13 22:28:19,372 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:19,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:19,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:28:19,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:19,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:19,373 INFO L85 PathProgramCache]: Analyzing trace with hash 532538279, now seen corresponding path program 1 times [2022-12-13 22:28:19,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:19,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006066481] [2022-12-13 22:28:19,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:19,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:20,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:20,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:28:20,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:20,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006066481] [2022-12-13 22:28:20,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006066481] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:20,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:20,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:28:20,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520794846] [2022-12-13 22:28:20,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:20,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:28:20,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:20,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:28:20,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:28:20,025 INFO L87 Difference]: Start difference. First operand 1770 states and 2519 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:28:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:20,852 INFO L93 Difference]: Finished difference Result 1854 states and 2664 transitions. [2022-12-13 22:28:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:28:20,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2022-12-13 22:28:20,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:20,859 INFO L225 Difference]: With dead ends: 1854 [2022-12-13 22:28:20,859 INFO L226 Difference]: Without dead ends: 1851 [2022-12-13 22:28:20,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:28:20,861 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 807 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:20,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 1130 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 22:28:20,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2022-12-13 22:28:20,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1769. [2022-12-13 22:28:20,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1340 states have (on average 1.4014925373134328) internal successors, (1878), 1354 states have internal predecessors, (1878), 321 states have call successors, (321), 108 states have call predecessors, (321), 107 states have return successors, (318), 318 states have call predecessors, (318), 318 states have call successors, (318) [2022-12-13 22:28:20,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2517 transitions. [2022-12-13 22:28:20,923 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2517 transitions. Word has length 31 [2022-12-13 22:28:20,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:20,923 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 2517 transitions. [2022-12-13 22:28:20,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:28:20,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2517 transitions. [2022-12-13 22:28:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 22:28:20,924 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:20,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:20,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:28:20,925 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:20,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:20,925 INFO L85 PathProgramCache]: Analyzing trace with hash -671248904, now seen corresponding path program 1 times [2022-12-13 22:28:20,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:20,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824849206] [2022-12-13 22:28:20,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:20,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:21,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:21,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:28:21,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:21,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824849206] [2022-12-13 22:28:21,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824849206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:21,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:21,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:28:21,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836700700] [2022-12-13 22:28:21,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:21,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:28:21,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:21,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:28:21,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:28:21,455 INFO L87 Difference]: Start difference. First operand 1769 states and 2517 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:28:22,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:22,711 INFO L93 Difference]: Finished difference Result 5019 states and 7197 transitions. [2022-12-13 22:28:22,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:28:22,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-12-13 22:28:22,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:22,727 INFO L225 Difference]: With dead ends: 5019 [2022-12-13 22:28:22,728 INFO L226 Difference]: Without dead ends: 3241 [2022-12-13 22:28:22,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:28:22,735 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 824 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:22,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 1738 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 22:28:22,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2022-12-13 22:28:22,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3138. [2022-12-13 22:28:22,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 2375 states have (on average 1.3974736842105264) internal successors, (3319), 2412 states have internal predecessors, (3319), 581 states have call successors, (581), 195 states have call predecessors, (581), 181 states have return successors, (575), 554 states have call predecessors, (575), 571 states have call successors, (575) [2022-12-13 22:28:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 4475 transitions. [2022-12-13 22:28:22,868 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 4475 transitions. Word has length 32 [2022-12-13 22:28:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:22,868 INFO L495 AbstractCegarLoop]: Abstraction has 3138 states and 4475 transitions. [2022-12-13 22:28:22,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:28:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 4475 transitions. [2022-12-13 22:28:22,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 22:28:22,870 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:22,870 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 22:28:22,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:28:22,871 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:22,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:22,871 INFO L85 PathProgramCache]: Analyzing trace with hash -131328040, now seen corresponding path program 1 times [2022-12-13 22:28:22,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:22,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038475419] [2022-12-13 22:28:22,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:22,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:24,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:24,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:28:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:24,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:24,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:28:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:24,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 22:28:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:24,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:28:24,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:24,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038475419] [2022-12-13 22:28:24,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038475419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:24,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:24,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:28:24,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234664612] [2022-12-13 22:28:24,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:24,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:28:24,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:24,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:28:24,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:28:24,562 INFO L87 Difference]: Start difference. First operand 3138 states and 4475 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 22:28:27,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:28:30,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:30,295 INFO L93 Difference]: Finished difference Result 7858 states and 11247 transitions. [2022-12-13 22:28:30,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 22:28:30,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2022-12-13 22:28:30,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:30,311 INFO L225 Difference]: With dead ends: 7858 [2022-12-13 22:28:30,312 INFO L226 Difference]: Without dead ends: 4717 [2022-12-13 22:28:30,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:28:30,320 INFO L413 NwaCegarLoop]: 1196 mSDtfsCounter, 1073 mSDsluCounter, 3380 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 416 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 4576 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:30,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 4576 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 1644 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-12-13 22:28:30,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4717 states. [2022-12-13 22:28:30,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4717 to 3960. [2022-12-13 22:28:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 2979 states have (on average 1.3826787512588117) internal successors, (4119), 3026 states have internal predecessors, (4119), 738 states have call successors, (738), 256 states have call predecessors, (738), 242 states have return successors, (732), 707 states have call predecessors, (732), 728 states have call successors, (732) [2022-12-13 22:28:30,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 5589 transitions. [2022-12-13 22:28:30,469 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 5589 transitions. Word has length 63 [2022-12-13 22:28:30,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:30,469 INFO L495 AbstractCegarLoop]: Abstraction has 3960 states and 5589 transitions. [2022-12-13 22:28:30,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 22:28:30,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 5589 transitions. [2022-12-13 22:28:30,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-13 22:28:30,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:30,471 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:30,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 22:28:30,471 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:30,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:30,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2094952206, now seen corresponding path program 1 times [2022-12-13 22:28:30,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:30,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656445126] [2022-12-13 22:28:30,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:30,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 22:28:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 22:28:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:28:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:28:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 22:28:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 22:28:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 22:28:31,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:31,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656445126] [2022-12-13 22:28:31,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656445126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:31,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:31,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 22:28:31,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787485899] [2022-12-13 22:28:31,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:31,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:28:31,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:31,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:28:31,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:28:31,136 INFO L87 Difference]: Start difference. First operand 3960 states and 5589 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-13 22:28:34,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:28:35,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:35,725 INFO L93 Difference]: Finished difference Result 8919 states and 12566 transitions. [2022-12-13 22:28:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 22:28:35,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 85 [2022-12-13 22:28:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:35,743 INFO L225 Difference]: With dead ends: 8919 [2022-12-13 22:28:35,743 INFO L226 Difference]: Without dead ends: 4962 [2022-12-13 22:28:35,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:28:35,754 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 778 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 286 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:35,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 2473 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1424 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-12-13 22:28:35,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2022-12-13 22:28:35,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 4545. [2022-12-13 22:28:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 3476 states have (on average 1.3955696202531647) internal successors, (4851), 3539 states have internal predecessors, (4851), 769 states have call successors, (769), 315 states have call predecessors, (769), 299 states have return successors, (761), 714 states have call predecessors, (761), 753 states have call successors, (761) [2022-12-13 22:28:35,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 6381 transitions. [2022-12-13 22:28:35,969 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 6381 transitions. Word has length 85 [2022-12-13 22:28:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:35,969 INFO L495 AbstractCegarLoop]: Abstraction has 4545 states and 6381 transitions. [2022-12-13 22:28:35,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-13 22:28:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 6381 transitions. [2022-12-13 22:28:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 22:28:35,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:35,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:35,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 22:28:35,972 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:35,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash -408268752, now seen corresponding path program 1 times [2022-12-13 22:28:35,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:35,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129355727] [2022-12-13 22:28:35,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:35,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:28:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:28:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 22:28:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:28:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:28:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 22:28:36,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:36,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129355727] [2022-12-13 22:28:36,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129355727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:36,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:36,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 22:28:36,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155856081] [2022-12-13 22:28:36,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:36,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 22:28:36,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:36,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 22:28:36,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 22:28:36,839 INFO L87 Difference]: Start difference. First operand 4545 states and 6381 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 22:28:40,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:28:43,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:43,429 INFO L93 Difference]: Finished difference Result 9725 states and 13737 transitions. [2022-12-13 22:28:43,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 22:28:43,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 86 [2022-12-13 22:28:43,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:43,461 INFO L225 Difference]: With dead ends: 9725 [2022-12-13 22:28:43,461 INFO L226 Difference]: Without dead ends: 5142 [2022-12-13 22:28:43,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-12-13 22:28:43,476 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 1137 mSDsluCounter, 4287 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 459 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 5449 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:43,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 5449 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 2083 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-13 22:28:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2022-12-13 22:28:43,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 4465. [2022-12-13 22:28:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4465 states, 3414 states have (on average 1.398066783831283) internal successors, (4773), 3477 states have internal predecessors, (4773), 760 states have call successors, (760), 306 states have call predecessors, (760), 290 states have return successors, (752), 705 states have call predecessors, (752), 744 states have call successors, (752) [2022-12-13 22:28:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4465 states to 4465 states and 6285 transitions. [2022-12-13 22:28:43,719 INFO L78 Accepts]: Start accepts. Automaton has 4465 states and 6285 transitions. Word has length 86 [2022-12-13 22:28:43,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:43,719 INFO L495 AbstractCegarLoop]: Abstraction has 4465 states and 6285 transitions. [2022-12-13 22:28:43,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 22:28:43,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4465 states and 6285 transitions. [2022-12-13 22:28:43,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 22:28:43,722 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:43,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:43,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 22:28:43,722 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:43,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:43,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1505865912, now seen corresponding path program 1 times [2022-12-13 22:28:43,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:43,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884699078] [2022-12-13 22:28:43,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:43,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:28:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:28:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:28:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:28:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:28:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 22:28:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 22:28:44,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:44,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884699078] [2022-12-13 22:28:44,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884699078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:44,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:44,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 22:28:44,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405480857] [2022-12-13 22:28:44,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:44,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:28:44,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:44,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:28:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:28:44,475 INFO L87 Difference]: Start difference. First operand 4465 states and 6285 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 22:28:47,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:28:49,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:49,533 INFO L93 Difference]: Finished difference Result 11949 states and 17066 transitions. [2022-12-13 22:28:49,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:28:49,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 97 [2022-12-13 22:28:49,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:49,562 INFO L225 Difference]: With dead ends: 11949 [2022-12-13 22:28:49,562 INFO L226 Difference]: Without dead ends: 7502 [2022-12-13 22:28:49,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:28:49,577 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 1289 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 724 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:49,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 2485 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 1096 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-13 22:28:49,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2022-12-13 22:28:49,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 6603. [2022-12-13 22:28:49,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6603 states, 5088 states have (on average 1.3863993710691824) internal successors, (7054), 5171 states have internal predecessors, (7054), 1092 states have call successors, (1092), 440 states have call predecessors, (1092), 422 states have return successors, (1088), 1027 states have call predecessors, (1088), 1076 states have call successors, (1088) [2022-12-13 22:28:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6603 states to 6603 states and 9234 transitions. [2022-12-13 22:28:49,880 INFO L78 Accepts]: Start accepts. Automaton has 6603 states and 9234 transitions. Word has length 97 [2022-12-13 22:28:49,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:49,881 INFO L495 AbstractCegarLoop]: Abstraction has 6603 states and 9234 transitions. [2022-12-13 22:28:49,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 22:28:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 6603 states and 9234 transitions. [2022-12-13 22:28:49,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-13 22:28:49,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:49,886 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:49,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 22:28:49,886 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:49,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:49,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1652473365, now seen corresponding path program 1 times [2022-12-13 22:28:49,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:49,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626289720] [2022-12-13 22:28:49,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:49,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:28:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:28:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:28:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:28:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:28:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:28:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 22:28:50,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:50,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626289720] [2022-12-13 22:28:50,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626289720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:50,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:50,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 22:28:50,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205032824] [2022-12-13 22:28:50,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:50,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:28:50,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:50,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:28:50,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:28:50,636 INFO L87 Difference]: Start difference. First operand 6603 states and 9234 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 22:28:54,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:28:56,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:28:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:28:58,611 INFO L93 Difference]: Finished difference Result 16527 states and 23430 transitions. [2022-12-13 22:28:58,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:28:58,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2022-12-13 22:28:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:28:58,643 INFO L225 Difference]: With dead ends: 16527 [2022-12-13 22:28:58,643 INFO L226 Difference]: Without dead ends: 9942 [2022-12-13 22:28:58,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:28:58,658 INFO L413 NwaCegarLoop]: 1147 mSDtfsCounter, 1098 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 544 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 3232 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-13 22:28:58,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 3232 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 1203 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-12-13 22:28:58,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9942 states. [2022-12-13 22:28:58,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9942 to 8745. [2022-12-13 22:28:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8745 states, 6767 states have (on average 1.3802275749963056) internal successors, (9340), 6867 states have internal predecessors, (9340), 1420 states have call successors, (1420), 576 states have call predecessors, (1420), 557 states have return successors, (1423), 1349 states have call predecessors, (1423), 1407 states have call successors, (1423) [2022-12-13 22:28:58,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8745 states to 8745 states and 12183 transitions. [2022-12-13 22:28:58,967 INFO L78 Accepts]: Start accepts. Automaton has 8745 states and 12183 transitions. Word has length 118 [2022-12-13 22:28:58,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:28:58,968 INFO L495 AbstractCegarLoop]: Abstraction has 8745 states and 12183 transitions. [2022-12-13 22:28:58,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 22:28:58,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8745 states and 12183 transitions. [2022-12-13 22:28:58,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 22:28:58,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:28:58,971 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:28:58,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 22:28:58,971 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:28:58,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:28:58,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1401320173, now seen corresponding path program 1 times [2022-12-13 22:28:58,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:28:58,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893523575] [2022-12-13 22:28:58,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:28:58,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:28:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:28:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:28:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:28:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:28:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 22:28:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 22:28:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 22:28:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:28:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:28:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 22:28:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 22:28:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:28:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:28:59,821 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 22:28:59,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:28:59,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893523575] [2022-12-13 22:28:59,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893523575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:28:59,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:28:59,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:28:59,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825552660] [2022-12-13 22:28:59,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:28:59,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:28:59,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:28:59,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:28:59,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:28:59,822 INFO L87 Difference]: Start difference. First operand 8745 states and 12183 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 22:29:03,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:05,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:07,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:29:07,468 INFO L93 Difference]: Finished difference Result 13753 states and 19221 transitions. [2022-12-13 22:29:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 22:29:07,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2022-12-13 22:29:07,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:29:07,480 INFO L225 Difference]: With dead ends: 13753 [2022-12-13 22:29:07,480 INFO L226 Difference]: Without dead ends: 5026 [2022-12-13 22:29:07,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:29:07,492 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1477 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 685 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:29:07,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 2100 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [685 Valid, 1666 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-12-13 22:29:07,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2022-12-13 22:29:07,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 3639. [2022-12-13 22:29:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3639 states, 2840 states have (on average 1.403169014084507) internal successors, (3985), 2882 states have internal predecessors, (3985), 590 states have call successors, (590), 219 states have call predecessors, (590), 208 states have return successors, (588), 561 states have call predecessors, (588), 580 states have call successors, (588) [2022-12-13 22:29:07,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 5163 transitions. [2022-12-13 22:29:07,630 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 5163 transitions. Word has length 143 [2022-12-13 22:29:07,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:29:07,630 INFO L495 AbstractCegarLoop]: Abstraction has 3639 states and 5163 transitions. [2022-12-13 22:29:07,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 22:29:07,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 5163 transitions. [2022-12-13 22:29:07,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-13 22:29:07,633 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:29:07,633 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:29:07,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 22:29:07,633 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:29:07,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:29:07,633 INFO L85 PathProgramCache]: Analyzing trace with hash 363401530, now seen corresponding path program 1 times [2022-12-13 22:29:07,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:29:07,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124268949] [2022-12-13 22:29:07,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:29:07,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:29:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:29:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:29:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:29:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:29:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:29:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:29:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 22:29:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 22:29:08,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:29:08,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124268949] [2022-12-13 22:29:08,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124268949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:29:08,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:29:08,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:29:08,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388126189] [2022-12-13 22:29:08,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:29:08,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:29:08,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:29:08,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:29:08,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:29:08,963 INFO L87 Difference]: Start difference. First operand 3639 states and 5163 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:12,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:29:15,568 INFO L93 Difference]: Finished difference Result 9923 states and 14331 transitions. [2022-12-13 22:29:15,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 22:29:15,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 150 [2022-12-13 22:29:15,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:29:15,582 INFO L225 Difference]: With dead ends: 9923 [2022-12-13 22:29:15,583 INFO L226 Difference]: Without dead ends: 6302 [2022-12-13 22:29:15,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2022-12-13 22:29:15,588 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 2524 mSDsluCounter, 2734 mSDsCounter, 0 mSdLazyCounter, 3233 mSolverCounterSat, 1193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2621 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 4427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 3233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:29:15,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2621 Valid, 3491 Invalid, 4427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1193 Valid, 3233 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-12-13 22:29:15,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6302 states. [2022-12-13 22:29:15,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6302 to 4477. [2022-12-13 22:29:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 3503 states have (on average 1.4233514130745075) internal successors, (4986), 3552 states have internal predecessors, (4986), 720 states have call successors, (720), 266 states have call predecessors, (720), 253 states have return successors, (720), 688 states have call predecessors, (720), 710 states have call successors, (720) [2022-12-13 22:29:15,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 6426 transitions. [2022-12-13 22:29:15,767 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 6426 transitions. Word has length 150 [2022-12-13 22:29:15,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:29:15,767 INFO L495 AbstractCegarLoop]: Abstraction has 4477 states and 6426 transitions. [2022-12-13 22:29:15,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:15,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 6426 transitions. [2022-12-13 22:29:15,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 22:29:15,770 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:29:15,770 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:29:15,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 22:29:15,770 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:29:15,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:29:15,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1388900993, now seen corresponding path program 1 times [2022-12-13 22:29:15,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:29:15,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940162016] [2022-12-13 22:29:15,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:29:15,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:29:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:29:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:29:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:29:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:29:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 22:29:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:29:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 22:29:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:16,521 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 22:29:16,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:29:16,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940162016] [2022-12-13 22:29:16,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940162016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:29:16,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:29:16,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:29:16,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139760088] [2022-12-13 22:29:16,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:29:16,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:29:16,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:29:16,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:29:16,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:29:16,523 INFO L87 Difference]: Start difference. First operand 4477 states and 6426 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:19,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:22,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:29:25,269 INFO L93 Difference]: Finished difference Result 10840 states and 15684 transitions. [2022-12-13 22:29:25,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 22:29:25,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 152 [2022-12-13 22:29:25,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:29:25,284 INFO L225 Difference]: With dead ends: 10840 [2022-12-13 22:29:25,284 INFO L226 Difference]: Without dead ends: 6381 [2022-12-13 22:29:25,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-12-13 22:29:25,291 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 1331 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 868 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 3184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:29:25,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 2857 Invalid, 3184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [868 Valid, 2314 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-12-13 22:29:25,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6381 states. [2022-12-13 22:29:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6381 to 5286. [2022-12-13 22:29:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 4149 states have (on average 1.4193781634128706) internal successors, (5889), 4205 states have internal predecessors, (5889), 843 states have call successors, (843), 307 states have call predecessors, (843), 293 states have return successors, (845), 809 states have call predecessors, (845), 833 states have call successors, (845) [2022-12-13 22:29:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7577 transitions. [2022-12-13 22:29:25,503 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7577 transitions. Word has length 152 [2022-12-13 22:29:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:29:25,503 INFO L495 AbstractCegarLoop]: Abstraction has 5286 states and 7577 transitions. [2022-12-13 22:29:25,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7577 transitions. [2022-12-13 22:29:25,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-13 22:29:25,505 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:29:25,506 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:29:25,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 22:29:25,506 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:29:25,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:29:25,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1968571598, now seen corresponding path program 1 times [2022-12-13 22:29:25,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:29:25,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366676663] [2022-12-13 22:29:25,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:29:25,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:29:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:29:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:29:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:29:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:29:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:29:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:29:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 22:29:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 22:29:26,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:29:26,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366676663] [2022-12-13 22:29:26,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366676663] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:29:26,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:29:26,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:29:26,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795038832] [2022-12-13 22:29:26,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:29:26,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:29:26,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:29:26,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:29:26,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:29:26,212 INFO L87 Difference]: Start difference. First operand 5286 states and 7577 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:29,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:33,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:29:33,952 INFO L93 Difference]: Finished difference Result 12585 states and 18190 transitions. [2022-12-13 22:29:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 22:29:33,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 150 [2022-12-13 22:29:33,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:29:33,971 INFO L225 Difference]: With dead ends: 12585 [2022-12-13 22:29:33,971 INFO L226 Difference]: Without dead ends: 7317 [2022-12-13 22:29:33,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-12-13 22:29:33,981 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 1208 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 719 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 3130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:29:33,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 2782 Invalid, 3130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 2410 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-12-13 22:29:33,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7317 states. [2022-12-13 22:29:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7317 to 6095. [2022-12-13 22:29:34,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6095 states, 4795 states have (on average 1.4164754953076122) internal successors, (6792), 4858 states have internal predecessors, (6792), 966 states have call successors, (966), 348 states have call predecessors, (966), 333 states have return successors, (970), 930 states have call predecessors, (970), 956 states have call successors, (970) [2022-12-13 22:29:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6095 states to 6095 states and 8728 transitions. [2022-12-13 22:29:34,246 INFO L78 Accepts]: Start accepts. Automaton has 6095 states and 8728 transitions. Word has length 150 [2022-12-13 22:29:34,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:29:34,246 INFO L495 AbstractCegarLoop]: Abstraction has 6095 states and 8728 transitions. [2022-12-13 22:29:34,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:34,246 INFO L276 IsEmpty]: Start isEmpty. Operand 6095 states and 8728 transitions. [2022-12-13 22:29:34,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-13 22:29:34,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:29:34,249 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:29:34,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 22:29:34,249 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:29:34,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:29:34,249 INFO L85 PathProgramCache]: Analyzing trace with hash -776984921, now seen corresponding path program 1 times [2022-12-13 22:29:34,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:29:34,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947396981] [2022-12-13 22:29:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:29:34,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:29:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:29:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:29:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:29:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:29:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:29:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:29:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 22:29:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:34,926 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 22:29:34,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:29:34,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947396981] [2022-12-13 22:29:34,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947396981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:29:34,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:29:34,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:29:34,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283281998] [2022-12-13 22:29:34,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:29:34,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:29:34,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:29:34,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:29:34,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:29:34,928 INFO L87 Difference]: Start difference. First operand 6095 states and 8728 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:38,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:41,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:29:41,872 INFO L93 Difference]: Finished difference Result 14330 states and 20696 transitions. [2022-12-13 22:29:41,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 22:29:41,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 151 [2022-12-13 22:29:41,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:29:41,888 INFO L225 Difference]: With dead ends: 14330 [2022-12-13 22:29:41,889 INFO L226 Difference]: Without dead ends: 8253 [2022-12-13 22:29:41,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-12-13 22:29:41,898 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 1222 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 721 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 721 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-13 22:29:41,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 2855 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [721 Valid, 2545 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-12-13 22:29:41,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8253 states. [2022-12-13 22:29:42,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8253 to 6904. [2022-12-13 22:29:42,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 5441 states have (on average 1.414262084175703) internal successors, (7695), 5511 states have internal predecessors, (7695), 1089 states have call successors, (1089), 389 states have call predecessors, (1089), 373 states have return successors, (1095), 1051 states have call predecessors, (1095), 1079 states have call successors, (1095) [2022-12-13 22:29:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 9879 transitions. [2022-12-13 22:29:42,181 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 9879 transitions. Word has length 151 [2022-12-13 22:29:42,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:29:42,181 INFO L495 AbstractCegarLoop]: Abstraction has 6904 states and 9879 transitions. [2022-12-13 22:29:42,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:42,181 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 9879 transitions. [2022-12-13 22:29:42,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-13 22:29:42,184 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:29:42,184 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:29:42,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 22:29:42,184 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:29:42,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:29:42,184 INFO L85 PathProgramCache]: Analyzing trace with hash -442175292, now seen corresponding path program 1 times [2022-12-13 22:29:42,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:29:42,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502522089] [2022-12-13 22:29:42,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:29:42,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:29:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:29:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:29:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:29:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:29:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:29:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:29:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 22:29:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:42,969 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 22:29:42,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:29:42,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502522089] [2022-12-13 22:29:42,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502522089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:29:42,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:29:42,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:29:42,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297960928] [2022-12-13 22:29:42,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:29:42,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:29:42,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:29:42,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:29:42,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:29:42,970 INFO L87 Difference]: Start difference. First operand 6904 states and 9879 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:46,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:48,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:51,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:29:51,073 INFO L93 Difference]: Finished difference Result 14826 states and 21393 transitions. [2022-12-13 22:29:51,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 22:29:51,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 151 [2022-12-13 22:29:51,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:29:51,090 INFO L225 Difference]: With dead ends: 14826 [2022-12-13 22:29:51,090 INFO L226 Difference]: Without dead ends: 7940 [2022-12-13 22:29:51,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:29:51,100 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 1182 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 509 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-13 22:29:51,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 2591 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 2078 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-12-13 22:29:51,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7940 states. [2022-12-13 22:29:51,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7940 to 6904. [2022-12-13 22:29:51,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 5441 states have (on average 1.4138945046866385) internal successors, (7693), 5511 states have internal predecessors, (7693), 1089 states have call successors, (1089), 389 states have call predecessors, (1089), 373 states have return successors, (1095), 1051 states have call predecessors, (1095), 1079 states have call successors, (1095) [2022-12-13 22:29:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 9877 transitions. [2022-12-13 22:29:51,393 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 9877 transitions. Word has length 151 [2022-12-13 22:29:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:29:51,394 INFO L495 AbstractCegarLoop]: Abstraction has 6904 states and 9877 transitions. [2022-12-13 22:29:51,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:51,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 9877 transitions. [2022-12-13 22:29:51,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 22:29:51,396 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:29:51,396 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:29:51,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 22:29:51,397 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:29:51,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:29:51,397 INFO L85 PathProgramCache]: Analyzing trace with hash 344918539, now seen corresponding path program 1 times [2022-12-13 22:29:51,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:29:51,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999613982] [2022-12-13 22:29:51,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:29:51,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:29:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:29:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:29:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:29:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:29:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:29:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:29:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 22:29:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 22:29:52,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:29:52,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999613982] [2022-12-13 22:29:52,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999613982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:29:52,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:29:52,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:29:52,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222924327] [2022-12-13 22:29:52,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:29:52,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:29:52,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:29:52,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:29:52,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:29:52,179 INFO L87 Difference]: Start difference. First operand 6904 states and 9877 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:55,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:29:58,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:29:58,111 INFO L93 Difference]: Finished difference Result 14826 states and 21389 transitions. [2022-12-13 22:29:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 22:29:58,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 152 [2022-12-13 22:29:58,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:29:58,127 INFO L225 Difference]: With dead ends: 14826 [2022-12-13 22:29:58,127 INFO L226 Difference]: Without dead ends: 7940 [2022-12-13 22:29:58,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:29:58,138 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 1371 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 751 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 2596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:29:58,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 2259 Invalid, 2596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 1844 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-12-13 22:29:58,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7940 states. [2022-12-13 22:29:58,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7940 to 6904. [2022-12-13 22:29:58,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 5441 states have (on average 1.413526925197574) internal successors, (7691), 5511 states have internal predecessors, (7691), 1089 states have call successors, (1089), 389 states have call predecessors, (1089), 373 states have return successors, (1095), 1051 states have call predecessors, (1095), 1079 states have call successors, (1095) [2022-12-13 22:29:58,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 9875 transitions. [2022-12-13 22:29:58,449 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 9875 transitions. Word has length 152 [2022-12-13 22:29:58,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:29:58,449 INFO L495 AbstractCegarLoop]: Abstraction has 6904 states and 9875 transitions. [2022-12-13 22:29:58,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:29:58,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 9875 transitions. [2022-12-13 22:29:58,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-13 22:29:58,452 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:29:58,452 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:29:58,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 22:29:58,452 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:29:58,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:29:58,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1232094863, now seen corresponding path program 1 times [2022-12-13 22:29:58,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:29:58,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225443774] [2022-12-13 22:29:58,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:29:58,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:29:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:29:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:29:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:29:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:29:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 22:29:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:29:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:29:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:29:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 22:29:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:29:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 22:29:59,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:29:59,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225443774] [2022-12-13 22:29:59,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225443774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:29:59,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:29:59,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:29:59,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507090891] [2022-12-13 22:29:59,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:29:59,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:29:59,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:29:59,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:29:59,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:29:59,221 INFO L87 Difference]: Start difference. First operand 6904 states and 9875 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:30:02,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:30:04,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:30:07,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:30:07,106 INFO L93 Difference]: Finished difference Result 14826 states and 21385 transitions. [2022-12-13 22:30:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 22:30:07,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 153 [2022-12-13 22:30:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:30:07,121 INFO L225 Difference]: With dead ends: 14826 [2022-12-13 22:30:07,121 INFO L226 Difference]: Without dead ends: 7940 [2022-12-13 22:30:07,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:30:07,131 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 1190 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 2047 mSolverCounterSat, 515 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 2047 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:30:07,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 2577 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 2047 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-12-13 22:30:07,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7940 states. [2022-12-13 22:30:07,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7940 to 6904. [2022-12-13 22:30:07,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 5441 states have (on average 1.4131593457085094) internal successors, (7689), 5511 states have internal predecessors, (7689), 1089 states have call successors, (1089), 389 states have call predecessors, (1089), 373 states have return successors, (1095), 1051 states have call predecessors, (1095), 1079 states have call successors, (1095) [2022-12-13 22:30:07,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 9873 transitions. [2022-12-13 22:30:07,462 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 9873 transitions. Word has length 153 [2022-12-13 22:30:07,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:30:07,462 INFO L495 AbstractCegarLoop]: Abstraction has 6904 states and 9873 transitions. [2022-12-13 22:30:07,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:30:07,462 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 9873 transitions. [2022-12-13 22:30:07,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-13 22:30:07,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:30:07,464 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:30:07,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 22:30:07,464 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:30:07,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:30:07,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1995602390, now seen corresponding path program 1 times [2022-12-13 22:30:07,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:30:07,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977361640] [2022-12-13 22:30:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:30:07,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:30:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:30:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:30:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:30:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:30:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:30:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:30:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 22:30:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:08,212 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 22:30:08,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:30:08,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977361640] [2022-12-13 22:30:08,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977361640] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:30:08,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767561797] [2022-12-13 22:30:08,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:30:08,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:30:08,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:30:08,214 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:30:08,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 22:30:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:09,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 13833 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 22:30:09,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:30:09,947 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 22:30:09,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:30:09,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767561797] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:30:09,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:30:09,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2022-12-13 22:30:09,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441666552] [2022-12-13 22:30:09,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:30:09,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:30:09,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:30:09,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:30:09,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:30:09,949 INFO L87 Difference]: Start difference. First operand 6904 states and 9873 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 22:30:11,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:30:11,466 INFO L93 Difference]: Finished difference Result 20675 states and 29571 transitions. [2022-12-13 22:30:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:30:11,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 150 [2022-12-13 22:30:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:30:11,503 INFO L225 Difference]: With dead ends: 20675 [2022-12-13 22:30:11,503 INFO L226 Difference]: Without dead ends: 20660 [2022-12-13 22:30:11,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:30:11,510 INFO L413 NwaCegarLoop]: 1502 mSDtfsCounter, 1524 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 22:30:11,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 2850 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 22:30:11,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20660 states. [2022-12-13 22:30:12,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20660 to 20590. [2022-12-13 22:30:12,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20590 states, 16229 states have (on average 1.4139503358185963) internal successors, (22947), 16431 states have internal predecessors, (22947), 3247 states have call successors, (3247), 1155 states have call predecessors, (3247), 1113 states have return successors, (3279), 3147 states have call predecessors, (3279), 3231 states have call successors, (3279) [2022-12-13 22:30:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20590 states to 20590 states and 29473 transitions. [2022-12-13 22:30:12,574 INFO L78 Accepts]: Start accepts. Automaton has 20590 states and 29473 transitions. Word has length 150 [2022-12-13 22:30:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:30:12,575 INFO L495 AbstractCegarLoop]: Abstraction has 20590 states and 29473 transitions. [2022-12-13 22:30:12,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 22:30:12,575 INFO L276 IsEmpty]: Start isEmpty. Operand 20590 states and 29473 transitions. [2022-12-13 22:30:12,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-13 22:30:12,579 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:30:12,579 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:30:12,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 22:30:12,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:30:12,780 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:30:12,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:30:12,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1999531822, now seen corresponding path program 1 times [2022-12-13 22:30:12,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:30:12,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436454089] [2022-12-13 22:30:12,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:30:12,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:30:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:30:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:30:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:30:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:30:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 22:30:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 22:30:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 22:30:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:30:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 22:30:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 22:30:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 22:30:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:13,418 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 22:30:13,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:30:13,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436454089] [2022-12-13 22:30:13,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436454089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:30:13,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:30:13,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 22:30:13,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728368442] [2022-12-13 22:30:13,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:30:13,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 22:30:13,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:30:13,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 22:30:13,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 22:30:13,421 INFO L87 Difference]: Start difference. First operand 20590 states and 29473 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-12-13 22:30:17,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:30:19,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:30:19,578 INFO L93 Difference]: Finished difference Result 44294 states and 64041 transitions. [2022-12-13 22:30:19,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:30:19,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 160 [2022-12-13 22:30:19,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:30:19,639 INFO L225 Difference]: With dead ends: 44294 [2022-12-13 22:30:19,639 INFO L226 Difference]: Without dead ends: 23722 [2022-12-13 22:30:19,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:30:19,696 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 848 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 661 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-13 22:30:19,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1866 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [661 Valid, 1310 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-13 22:30:19,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23722 states. [2022-12-13 22:30:20,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23722 to 20614. [2022-12-13 22:30:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20614 states, 16253 states have (on average 1.4133390758629176) internal successors, (22971), 16455 states have internal predecessors, (22971), 3247 states have call successors, (3247), 1155 states have call predecessors, (3247), 1113 states have return successors, (3279), 3147 states have call predecessors, (3279), 3231 states have call successors, (3279) [2022-12-13 22:30:20,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20614 states to 20614 states and 29497 transitions. [2022-12-13 22:30:20,854 INFO L78 Accepts]: Start accepts. Automaton has 20614 states and 29497 transitions. Word has length 160 [2022-12-13 22:30:20,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:30:20,854 INFO L495 AbstractCegarLoop]: Abstraction has 20614 states and 29497 transitions. [2022-12-13 22:30:20,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-12-13 22:30:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 20614 states and 29497 transitions. [2022-12-13 22:30:20,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-13 22:30:20,858 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:30:20,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:30:20,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 22:30:20,858 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:30:20,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:30:20,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1486088848, now seen corresponding path program 1 times [2022-12-13 22:30:20,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:30:20,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520664161] [2022-12-13 22:30:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:30:20,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:30:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:30:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:30:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:30:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:30:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 22:30:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 22:30:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 22:30:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:30:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 22:30:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 22:30:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 22:30:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 22:30:21,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:30:21,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520664161] [2022-12-13 22:30:21,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520664161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:30:21,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:30:21,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 22:30:21,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995802001] [2022-12-13 22:30:21,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:30:21,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 22:30:21,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:30:21,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 22:30:21,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 22:30:21,831 INFO L87 Difference]: Start difference. First operand 20614 states and 29497 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (20), 8 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:30:25,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:30:29,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:30:29,808 INFO L93 Difference]: Finished difference Result 44320 states and 63898 transitions. [2022-12-13 22:30:29,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 22:30:29,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (20), 8 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2022-12-13 22:30:29,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:30:29,891 INFO L225 Difference]: With dead ends: 44320 [2022-12-13 22:30:29,891 INFO L226 Difference]: Without dead ends: 23724 [2022-12-13 22:30:29,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:30:29,926 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 1343 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 850 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:30:29,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 2567 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 2242 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-12-13 22:30:29,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23724 states. [2022-12-13 22:30:30,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23724 to 20244. [2022-12-13 22:30:30,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20244 states, 15993 states have (on average 1.4134934033639717) internal successors, (22606), 16191 states have internal predecessors, (22606), 3163 states have call successors, (3163), 1125 states have call predecessors, (3163), 1087 states have return successors, (3109), 3071 states have call predecessors, (3109), 3109 states have call successors, (3109) [2022-12-13 22:30:30,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20244 states to 20244 states and 28878 transitions. [2022-12-13 22:30:31,001 INFO L78 Accepts]: Start accepts. Automaton has 20244 states and 28878 transitions. Word has length 160 [2022-12-13 22:30:31,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:30:31,001 INFO L495 AbstractCegarLoop]: Abstraction has 20244 states and 28878 transitions. [2022-12-13 22:30:31,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (20), 8 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:30:31,002 INFO L276 IsEmpty]: Start isEmpty. Operand 20244 states and 28878 transitions. [2022-12-13 22:30:31,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 22:30:31,006 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:30:31,006 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 22:30:31,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 22:30:31,006 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:30:31,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:30:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash -825193105, now seen corresponding path program 1 times [2022-12-13 22:30:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:30:31,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485593433] [2022-12-13 22:30:31,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:30:31,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:30:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:30:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:30:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:30:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:30:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:30:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:30:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 22:30:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 22:30:32,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:30:32,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485593433] [2022-12-13 22:30:32,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485593433] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:30:32,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778380523] [2022-12-13 22:30:32,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:30:32,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:30:32,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:30:32,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:30:32,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 22:30:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:34,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 13944 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 22:30:34,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:30:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 22:30:34,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:30:34,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778380523] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:30:34,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:30:34,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-12-13 22:30:34,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311255439] [2022-12-13 22:30:34,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:30:34,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:30:34,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:30:34,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:30:34,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:30:34,281 INFO L87 Difference]: Start difference. First operand 20244 states and 28878 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 22:30:35,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:30:35,650 INFO L93 Difference]: Finished difference Result 39723 states and 56834 transitions. [2022-12-13 22:30:35,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:30:35,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 159 [2022-12-13 22:30:35,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:30:35,692 INFO L225 Difference]: With dead ends: 39723 [2022-12-13 22:30:35,693 INFO L226 Difference]: Without dead ends: 18405 [2022-12-13 22:30:35,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:30:35,728 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 613 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:30:35,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 958 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:30:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18405 states. [2022-12-13 22:30:36,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18405 to 18277. [2022-12-13 22:30:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18277 states, 14512 states have (on average 1.4098676957001102) internal successors, (20460), 14695 states have internal predecessors, (20460), 2833 states have call successors, (2833), 969 states have call predecessors, (2833), 931 states have return successors, (2779), 2747 states have call predecessors, (2779), 2779 states have call successors, (2779) [2022-12-13 22:30:36,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18277 states to 18277 states and 26072 transitions. [2022-12-13 22:30:36,659 INFO L78 Accepts]: Start accepts. Automaton has 18277 states and 26072 transitions. Word has length 159 [2022-12-13 22:30:36,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:30:36,660 INFO L495 AbstractCegarLoop]: Abstraction has 18277 states and 26072 transitions. [2022-12-13 22:30:36,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 22:30:36,660 INFO L276 IsEmpty]: Start isEmpty. Operand 18277 states and 26072 transitions. [2022-12-13 22:30:36,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-12-13 22:30:36,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:30:36,665 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 22:30:36,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 22:30:36,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-13 22:30:36,866 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:30:36,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:30:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash -671897874, now seen corresponding path program 1 times [2022-12-13 22:30:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:30:36,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328859099] [2022-12-13 22:30:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:30:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:30:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:30:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:30:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:30:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:30:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 22:30:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:30:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 22:30:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:37,566 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-12-13 22:30:37,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:30:37,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328859099] [2022-12-13 22:30:37,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328859099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:30:37,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:30:37,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:30:37,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680553998] [2022-12-13 22:30:37,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:30:37,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:30:37,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:30:37,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:30:37,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:30:37,568 INFO L87 Difference]: Start difference. First operand 18277 states and 26072 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:30:41,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:30:43,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:30:47,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:30:47,365 INFO L93 Difference]: Finished difference Result 42248 states and 60982 transitions. [2022-12-13 22:30:47,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:30:47,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 169 [2022-12-13 22:30:47,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:30:47,415 INFO L225 Difference]: With dead ends: 42248 [2022-12-13 22:30:47,415 INFO L226 Difference]: Without dead ends: 24124 [2022-12-13 22:30:47,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:30:47,440 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 1240 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 846 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 3066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:30:47,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 2467 Invalid, 3066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 2218 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-12-13 22:30:47,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24124 states. [2022-12-13 22:30:48,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24124 to 20665. [2022-12-13 22:30:48,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20665 states, 16423 states have (on average 1.4068075260305668) internal successors, (23104), 16627 states have internal predecessors, (23104), 3193 states have call successors, (3193), 1089 states have call predecessors, (3193), 1048 states have return successors, (3136), 3101 states have call predecessors, (3136), 3136 states have call successors, (3136) [2022-12-13 22:30:48,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20665 states to 20665 states and 29433 transitions. [2022-12-13 22:30:48,544 INFO L78 Accepts]: Start accepts. Automaton has 20665 states and 29433 transitions. Word has length 169 [2022-12-13 22:30:48,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:30:48,544 INFO L495 AbstractCegarLoop]: Abstraction has 20665 states and 29433 transitions. [2022-12-13 22:30:48,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:30:48,544 INFO L276 IsEmpty]: Start isEmpty. Operand 20665 states and 29433 transitions. [2022-12-13 22:30:48,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-13 22:30:48,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:30:48,550 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 22:30:48,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 22:30:48,550 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:30:48,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:30:48,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1332412839, now seen corresponding path program 1 times [2022-12-13 22:30:48,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:30:48,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874538949] [2022-12-13 22:30:48,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:30:48,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:30:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:30:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:30:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:30:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:30:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:30:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:30:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:30:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:30:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-12-13 22:30:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:30:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-12-13 22:30:49,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:30:49,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874538949] [2022-12-13 22:30:49,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874538949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:30:49,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:30:49,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:30:49,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875739932] [2022-12-13 22:30:49,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:30:49,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:30:49,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:30:49,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:30:49,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:30:49,226 INFO L87 Difference]: Start difference. First operand 20665 states and 29433 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:30:52,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:30:54,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:30:57,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:30:59,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:31:04,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:31:04,101 INFO L93 Difference]: Finished difference Result 47435 states and 68352 transitions. [2022-12-13 22:31:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:31:04,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 174 [2022-12-13 22:31:04,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:31:04,161 INFO L225 Difference]: With dead ends: 47435 [2022-12-13 22:31:04,161 INFO L226 Difference]: Without dead ends: 26923 [2022-12-13 22:31:04,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:31:04,191 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 1027 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 2748 mSolverCounterSat, 559 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 3311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 2748 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:31:04,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 2950 Invalid, 3311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 2748 Invalid, 4 Unknown, 0 Unchecked, 13.0s Time] [2022-12-13 22:31:04,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26923 states. [2022-12-13 22:31:05,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26923 to 23053. [2022-12-13 22:31:05,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23053 states, 18334 states have (on average 1.404385295080179) internal successors, (25748), 18559 states have internal predecessors, (25748), 3553 states have call successors, (3553), 1209 states have call predecessors, (3553), 1165 states have return successors, (3493), 3455 states have call predecessors, (3493), 3493 states have call successors, (3493) [2022-12-13 22:31:05,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23053 states to 23053 states and 32794 transitions. [2022-12-13 22:31:05,380 INFO L78 Accepts]: Start accepts. Automaton has 23053 states and 32794 transitions. Word has length 174 [2022-12-13 22:31:05,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:31:05,381 INFO L495 AbstractCegarLoop]: Abstraction has 23053 states and 32794 transitions. [2022-12-13 22:31:05,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:31:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 23053 states and 32794 transitions. [2022-12-13 22:31:05,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 22:31:05,386 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:31:05,386 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:31:05,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 22:31:05,386 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:31:05,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:05,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1883935440, now seen corresponding path program 1 times [2022-12-13 22:31:05,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:31:05,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576013147] [2022-12-13 22:31:05,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:05,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:31:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:31:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:31:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:31:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:31:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 22:31:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 22:31:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:31:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 22:31:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 22:31:06,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:31:06,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576013147] [2022-12-13 22:31:06,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576013147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:31:06,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:31:06,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:31:06,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312942917] [2022-12-13 22:31:06,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:31:06,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:31:06,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:31:06,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:31:06,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:31:06,089 INFO L87 Difference]: Start difference. First operand 23053 states and 32794 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 22:31:09,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:31:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:31:12,288 INFO L93 Difference]: Finished difference Result 52336 states and 74995 transitions. [2022-12-13 22:31:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 22:31:12,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (15), 6 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 175 [2022-12-13 22:31:12,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:31:12,363 INFO L225 Difference]: With dead ends: 52336 [2022-12-13 22:31:12,363 INFO L226 Difference]: Without dead ends: 29436 [2022-12-13 22:31:12,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:31:12,400 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1259 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 699 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-13 22:31:12,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 1964 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 1249 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-12-13 22:31:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29436 states. [2022-12-13 22:31:13,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29436 to 25568. [2022-12-13 22:31:13,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25568 states, 20587 states have (on average 1.4006411813280226) internal successors, (28835), 20824 states have internal predecessors, (28835), 3689 states have call successors, (3689), 1341 states have call predecessors, (3689), 1291 states have return successors, (3617), 3573 states have call predecessors, (3617), 3617 states have call successors, (3617) [2022-12-13 22:31:13,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25568 states to 25568 states and 36141 transitions. [2022-12-13 22:31:13,787 INFO L78 Accepts]: Start accepts. Automaton has 25568 states and 36141 transitions. Word has length 175 [2022-12-13 22:31:13,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:31:13,788 INFO L495 AbstractCegarLoop]: Abstraction has 25568 states and 36141 transitions. [2022-12-13 22:31:13,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-13 22:31:13,788 INFO L276 IsEmpty]: Start isEmpty. Operand 25568 states and 36141 transitions. [2022-12-13 22:31:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-13 22:31:13,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:31:13,793 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:31:13,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 22:31:13,794 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:31:13,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash -323528472, now seen corresponding path program 1 times [2022-12-13 22:31:13,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:31:13,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38948883] [2022-12-13 22:31:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:13,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:31:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:31:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:31:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:31:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:31:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 22:31:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 22:31:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:31:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 22:31:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 22:31:14,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:31:14,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38948883] [2022-12-13 22:31:14,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38948883] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:31:14,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475301068] [2022-12-13 22:31:14,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:14,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:31:14,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:31:14,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:31:14,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 22:31:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:16,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 13948 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 22:31:16,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:31:16,378 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 22:31:16,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:31:16,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475301068] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:31:16,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:31:16,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2022-12-13 22:31:16,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328924344] [2022-12-13 22:31:16,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:31:16,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:31:16,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:31:16,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:31:16,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:31:16,380 INFO L87 Difference]: Start difference. First operand 25568 states and 36141 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 22:31:18,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:31:18,275 INFO L93 Difference]: Finished difference Result 63607 states and 89829 transitions. [2022-12-13 22:31:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:31:18,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 174 [2022-12-13 22:31:18,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:31:18,365 INFO L225 Difference]: With dead ends: 63607 [2022-12-13 22:31:18,365 INFO L226 Difference]: Without dead ends: 38192 [2022-12-13 22:31:18,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:31:18,402 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 666 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:31:18,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1507 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:31:18,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38192 states. [2022-12-13 22:31:20,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38192 to 38017. [2022-12-13 22:31:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38017 states, 30222 states have (on average 1.3932234795844087) internal successors, (42106), 30584 states have internal predecessors, (42106), 5803 states have call successors, (5803), 2044 states have call predecessors, (5803), 1991 states have return successors, (5726), 5679 states have call predecessors, (5726), 5726 states have call successors, (5726) [2022-12-13 22:31:20,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38017 states to 38017 states and 53635 transitions. [2022-12-13 22:31:20,482 INFO L78 Accepts]: Start accepts. Automaton has 38017 states and 53635 transitions. Word has length 174 [2022-12-13 22:31:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:31:20,482 INFO L495 AbstractCegarLoop]: Abstraction has 38017 states and 53635 transitions. [2022-12-13 22:31:20,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-13 22:31:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 38017 states and 53635 transitions. [2022-12-13 22:31:20,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-13 22:31:20,487 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:31:20,487 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 22:31:20,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 22:31:20,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 22:31:20,689 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:31:20,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:20,690 INFO L85 PathProgramCache]: Analyzing trace with hash 898656358, now seen corresponding path program 1 times [2022-12-13 22:31:20,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:31:20,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225778078] [2022-12-13 22:31:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:20,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:31:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:31:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:31:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:31:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:31:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:31:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:31:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 22:31:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:21,478 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-12-13 22:31:21,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:31:21,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225778078] [2022-12-13 22:31:21,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225778078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:31:21,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:31:21,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:31:21,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86171521] [2022-12-13 22:31:21,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:31:21,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:31:21,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:31:21,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:31:21,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:31:21,481 INFO L87 Difference]: Start difference. First operand 38017 states and 53635 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:31:25,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:31:31,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:31:31,178 INFO L93 Difference]: Finished difference Result 86989 states and 124210 transitions. [2022-12-13 22:31:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:31:31,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 176 [2022-12-13 22:31:31,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:31:31,304 INFO L225 Difference]: With dead ends: 86989 [2022-12-13 22:31:31,304 INFO L226 Difference]: Without dead ends: 49125 [2022-12-13 22:31:31,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:31:31,363 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 1122 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 694 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 3164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:31:31,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 2465 Invalid, 3164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 2469 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-13 22:31:31,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49125 states. [2022-12-13 22:31:33,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49125 to 41853. [2022-12-13 22:31:34,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41853 states, 33284 states have (on average 1.3913592116332172) internal successors, (46310), 33678 states have internal predecessors, (46310), 6379 states have call successors, (6379), 2244 states have call predecessors, (6379), 2189 states have return successors, (6300), 6251 states have call predecessors, (6300), 6300 states have call successors, (6300) [2022-12-13 22:31:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41853 states to 41853 states and 58989 transitions. [2022-12-13 22:31:34,107 INFO L78 Accepts]: Start accepts. Automaton has 41853 states and 58989 transitions. Word has length 176 [2022-12-13 22:31:34,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:31:34,107 INFO L495 AbstractCegarLoop]: Abstraction has 41853 states and 58989 transitions. [2022-12-13 22:31:34,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:31:34,108 INFO L276 IsEmpty]: Start isEmpty. Operand 41853 states and 58989 transitions. [2022-12-13 22:31:34,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-13 22:31:34,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:31:34,113 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:31:34,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 22:31:34,113 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:31:34,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:34,113 INFO L85 PathProgramCache]: Analyzing trace with hash 140775082, now seen corresponding path program 1 times [2022-12-13 22:31:34,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:31:34,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235839005] [2022-12-13 22:31:34,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:34,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:31:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:31:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:31:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:31:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:31:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:31:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:31:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 22:31:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:34,797 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-13 22:31:34,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:31:34,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235839005] [2022-12-13 22:31:34,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235839005] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:31:34,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:31:34,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:31:34,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469978845] [2022-12-13 22:31:34,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:31:34,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:31:34,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:31:34,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:31:34,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:31:34,799 INFO L87 Difference]: Start difference. First operand 41853 states and 58989 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:31:38,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:31:40,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:31:43,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:31:45,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:31:51,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:31:51,462 INFO L93 Difference]: Finished difference Result 95346 states and 135998 transitions. [2022-12-13 22:31:51,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:31:51,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 176 [2022-12-13 22:31:51,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:31:51,616 INFO L225 Difference]: With dead ends: 95346 [2022-12-13 22:31:51,616 INFO L226 Difference]: Without dead ends: 53646 [2022-12-13 22:31:51,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:31:51,687 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 1013 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 2816 mSolverCounterSat, 551 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 2816 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:31:51,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 2945 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 2816 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2022-12-13 22:31:51,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53646 states. [2022-12-13 22:31:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53646 to 45689. [2022-12-13 22:31:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45689 states, 36346 states have (on average 1.3898090573928354) internal successors, (50514), 36772 states have internal predecessors, (50514), 6955 states have call successors, (6955), 2444 states have call predecessors, (6955), 2387 states have return successors, (6874), 6823 states have call predecessors, (6874), 6874 states have call successors, (6874) [2022-12-13 22:31:54,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45689 states to 45689 states and 64343 transitions. [2022-12-13 22:31:54,382 INFO L78 Accepts]: Start accepts. Automaton has 45689 states and 64343 transitions. Word has length 176 [2022-12-13 22:31:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:31:54,382 INFO L495 AbstractCegarLoop]: Abstraction has 45689 states and 64343 transitions. [2022-12-13 22:31:54,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:31:54,382 INFO L276 IsEmpty]: Start isEmpty. Operand 45689 states and 64343 transitions. [2022-12-13 22:31:54,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-12-13 22:31:54,387 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:31:54,388 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:31:54,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 22:31:54,388 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:31:54,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:54,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1664823680, now seen corresponding path program 1 times [2022-12-13 22:31:54,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:31:54,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373587025] [2022-12-13 22:31:54,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:54,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:31:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:31:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:31:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:31:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:31:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:31:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:31:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:31:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:31:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-12-13 22:31:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:55,072 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-13 22:31:55,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:31:55,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373587025] [2022-12-13 22:31:55,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373587025] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:31:55,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:31:55,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:31:55,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366704003] [2022-12-13 22:31:55,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:31:55,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:31:55,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:31:55,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:31:55,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:31:55,074 INFO L87 Difference]: Start difference. First operand 45689 states and 64343 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:31:58,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:32:05,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:32:05,157 INFO L93 Difference]: Finished difference Result 103703 states and 147786 transitions. [2022-12-13 22:32:05,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:32:05,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 177 [2022-12-13 22:32:05,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:32:05,319 INFO L225 Difference]: With dead ends: 103703 [2022-12-13 22:32:05,319 INFO L226 Difference]: Without dead ends: 58167 [2022-12-13 22:32:05,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:32:05,390 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 1128 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 700 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 3164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 700 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:32:05,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 2464 Invalid, 3164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [700 Valid, 2463 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-12-13 22:32:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58167 states. [2022-12-13 22:32:08,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58167 to 49525. [2022-12-13 22:32:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49525 states, 39408 states have (on average 1.388499796995534) internal successors, (54718), 39866 states have internal predecessors, (54718), 7531 states have call successors, (7531), 2644 states have call predecessors, (7531), 2585 states have return successors, (7448), 7395 states have call predecessors, (7448), 7448 states have call successors, (7448) [2022-12-13 22:32:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49525 states to 49525 states and 69697 transitions. [2022-12-13 22:32:08,419 INFO L78 Accepts]: Start accepts. Automaton has 49525 states and 69697 transitions. Word has length 177 [2022-12-13 22:32:08,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:32:08,419 INFO L495 AbstractCegarLoop]: Abstraction has 49525 states and 69697 transitions. [2022-12-13 22:32:08,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:32:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 49525 states and 69697 transitions. [2022-12-13 22:32:08,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-12-13 22:32:08,425 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:32:08,425 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:32:08,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 22:32:08,425 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:32:08,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:32:08,426 INFO L85 PathProgramCache]: Analyzing trace with hash 194708679, now seen corresponding path program 1 times [2022-12-13 22:32:08,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:32:08,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667208117] [2022-12-13 22:32:08,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:32:08,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:32:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:32:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:32:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:32:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:32:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 22:32:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:32:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 22:32:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-12-13 22:32:09,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:32:09,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667208117] [2022-12-13 22:32:09,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667208117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:32:09,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:32:09,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:32:09,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866874012] [2022-12-13 22:32:09,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:32:09,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:32:09,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:32:09,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:32:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:32:09,117 INFO L87 Difference]: Start difference. First operand 49525 states and 69697 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:32:13,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:32:15,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:32:21,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:32:21,920 INFO L93 Difference]: Finished difference Result 112060 states and 159574 transitions. [2022-12-13 22:32:21,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:32:21,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 180 [2022-12-13 22:32:21,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:32:22,129 INFO L225 Difference]: With dead ends: 112060 [2022-12-13 22:32:22,129 INFO L226 Difference]: Without dead ends: 62688 [2022-12-13 22:32:22,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:32:22,201 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 1123 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 691 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 2956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:32:22,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 2487 Invalid, 2956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [691 Valid, 2263 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-12-13 22:32:22,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62688 states. [2022-12-13 22:32:25,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62688 to 53361. [2022-12-13 22:32:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53361 states, 42470 states have (on average 1.3873793265834706) internal successors, (58922), 42960 states have internal predecessors, (58922), 8107 states have call successors, (8107), 2844 states have call predecessors, (8107), 2783 states have return successors, (8022), 7967 states have call predecessors, (8022), 8022 states have call successors, (8022) [2022-12-13 22:32:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53361 states to 53361 states and 75051 transitions. [2022-12-13 22:32:25,395 INFO L78 Accepts]: Start accepts. Automaton has 53361 states and 75051 transitions. Word has length 180 [2022-12-13 22:32:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:32:25,395 INFO L495 AbstractCegarLoop]: Abstraction has 53361 states and 75051 transitions. [2022-12-13 22:32:25,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:32:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 53361 states and 75051 transitions. [2022-12-13 22:32:25,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-13 22:32:25,401 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:32:25,401 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:32:25,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 22:32:25,401 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:32:25,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:32:25,402 INFO L85 PathProgramCache]: Analyzing trace with hash -526977905, now seen corresponding path program 1 times [2022-12-13 22:32:25,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:32:25,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913769152] [2022-12-13 22:32:25,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:32:25,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:32:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:32:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:32:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:32:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:32:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 22:32:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:32:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-12-13 22:32:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-12-13 22:32:26,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:32:26,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913769152] [2022-12-13 22:32:26,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913769152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:32:26,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:32:26,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:32:26,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250065641] [2022-12-13 22:32:26,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:32:26,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:32:26,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:32:26,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:32:26,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:32:26,109 INFO L87 Difference]: Start difference. First operand 53361 states and 75051 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:32:30,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:32:34,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:32:38,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:32:38,498 INFO L93 Difference]: Finished difference Result 120551 states and 171511 transitions. [2022-12-13 22:32:38,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:32:38,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 187 [2022-12-13 22:32:38,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:32:38,689 INFO L225 Difference]: With dead ends: 120551 [2022-12-13 22:32:38,689 INFO L226 Difference]: Without dead ends: 67343 [2022-12-13 22:32:38,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:32:38,800 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 1242 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 855 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-13 22:32:38,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 2466 Invalid, 3102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [855 Valid, 2246 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-13 22:32:38,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67343 states. [2022-12-13 22:32:42,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67343 to 57103. [2022-12-13 22:32:42,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57103 states, 45376 states have (on average 1.3854460507757405) internal successors, (62866), 45901 states have internal predecessors, (62866), 8723 states have call successors, (8723), 3076 states have call predecessors, (8723), 3003 states have return successors, (8633), 8566 states have call predecessors, (8633), 8633 states have call successors, (8633) [2022-12-13 22:32:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57103 states to 57103 states and 80222 transitions. [2022-12-13 22:32:42,566 INFO L78 Accepts]: Start accepts. Automaton has 57103 states and 80222 transitions. Word has length 187 [2022-12-13 22:32:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:32:42,566 INFO L495 AbstractCegarLoop]: Abstraction has 57103 states and 80222 transitions. [2022-12-13 22:32:42,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:32:42,566 INFO L276 IsEmpty]: Start isEmpty. Operand 57103 states and 80222 transitions. [2022-12-13 22:32:42,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-12-13 22:32:42,574 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:32:42,574 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:32:42,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 22:32:42,574 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:32:42,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:32:42,574 INFO L85 PathProgramCache]: Analyzing trace with hash -16472624, now seen corresponding path program 1 times [2022-12-13 22:32:42,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:32:42,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247073506] [2022-12-13 22:32:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:32:42,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:32:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:32:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:32:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:32:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:32:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 22:32:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 22:32:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 22:32:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:32:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 22:32:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-12-13 22:32:43,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:32:43,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247073506] [2022-12-13 22:32:43,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247073506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:32:43,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:32:43,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 22:32:43,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520149182] [2022-12-13 22:32:43,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:32:43,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 22:32:43,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:32:43,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 22:32:43,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 22:32:43,198 INFO L87 Difference]: Start difference. First operand 57103 states and 80222 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:32:46,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:32:52,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:32:52,518 INFO L93 Difference]: Finished difference Result 124627 states and 177043 transitions. [2022-12-13 22:32:52,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:32:52,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 194 [2022-12-13 22:32:52,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:32:52,693 INFO L225 Difference]: With dead ends: 124627 [2022-12-13 22:32:52,693 INFO L226 Difference]: Without dead ends: 67677 [2022-12-13 22:32:52,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:32:52,774 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 646 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:32:52,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1801 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-13 22:32:52,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67677 states. [2022-12-13 22:32:56,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67677 to 57223. [2022-12-13 22:32:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57223 states, 45496 states have (on average 1.3844294003868471) internal successors, (62986), 46021 states have internal predecessors, (62986), 8723 states have call successors, (8723), 3076 states have call predecessors, (8723), 3003 states have return successors, (8633), 8566 states have call predecessors, (8633), 8633 states have call successors, (8633) [2022-12-13 22:32:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57223 states to 57223 states and 80342 transitions. [2022-12-13 22:32:56,351 INFO L78 Accepts]: Start accepts. Automaton has 57223 states and 80342 transitions. Word has length 194 [2022-12-13 22:32:56,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:32:56,352 INFO L495 AbstractCegarLoop]: Abstraction has 57223 states and 80342 transitions. [2022-12-13 22:32:56,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:32:56,352 INFO L276 IsEmpty]: Start isEmpty. Operand 57223 states and 80342 transitions. [2022-12-13 22:32:56,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-12-13 22:32:56,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:32:56,359 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:32:56,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 22:32:56,360 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:32:56,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:32:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash -189086997, now seen corresponding path program 1 times [2022-12-13 22:32:56,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:32:56,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23599448] [2022-12-13 22:32:56,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:32:56,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:32:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:32:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:32:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:32:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:32:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:32:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:32:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:32:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 22:32:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 22:32:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 22:32:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:32:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:32:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-12-13 22:32:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:32:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-12-13 22:32:57,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:32:57,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23599448] [2022-12-13 22:32:57,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23599448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:32:57,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:32:57,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 22:32:57,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054022707] [2022-12-13 22:32:57,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:32:57,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 22:32:57,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:32:57,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 22:32:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:32:57,514 INFO L87 Difference]: Start difference. First operand 57223 states and 80342 transitions. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 6 states have internal predecessors, (124), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 22:33:04,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:33:06,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:33:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:33:10,364 INFO L93 Difference]: Finished difference Result 122650 states and 175591 transitions. [2022-12-13 22:33:10,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 22:33:10,365 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 6 states have internal predecessors, (124), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 199 [2022-12-13 22:33:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:33:10,555 INFO L225 Difference]: With dead ends: 122650 [2022-12-13 22:33:10,555 INFO L226 Difference]: Without dead ends: 65580 [2022-12-13 22:33:10,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2022-12-13 22:33:10,663 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 528 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 305 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 3376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:33:10,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 3621 Invalid, 3376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 3069 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-12-13 22:33:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65580 states. [2022-12-13 22:33:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65580 to 58105. [2022-12-13 22:33:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58105 states, 46231 states have (on average 1.3783175791135818) internal successors, (63721), 46756 states have internal predecessors, (63721), 8723 states have call successors, (8723), 3076 states have call predecessors, (8723), 3150 states have return successors, (8993), 8713 states have call predecessors, (8993), 8633 states have call successors, (8993) [2022-12-13 22:33:14,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58105 states to 58105 states and 81437 transitions. [2022-12-13 22:33:14,372 INFO L78 Accepts]: Start accepts. Automaton has 58105 states and 81437 transitions. Word has length 199 [2022-12-13 22:33:14,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:33:14,372 INFO L495 AbstractCegarLoop]: Abstraction has 58105 states and 81437 transitions. [2022-12-13 22:33:14,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 6 states have internal predecessors, (124), 2 states have call successors, (22), 7 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 22:33:14,373 INFO L276 IsEmpty]: Start isEmpty. Operand 58105 states and 81437 transitions. [2022-12-13 22:33:14,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-12-13 22:33:14,379 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:33:14,379 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 22:33:14,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 22:33:14,379 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:33:14,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:33:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1317333622, now seen corresponding path program 1 times [2022-12-13 22:33:14,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:33:14,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625033977] [2022-12-13 22:33:14,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:33:14,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:33:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:33:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:33:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:33:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:33:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:33:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:33:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-12-13 22:33:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-12-13 22:33:15,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:33:15,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625033977] [2022-12-13 22:33:15,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625033977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:33:15,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:33:15,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:33:15,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218446678] [2022-12-13 22:33:15,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:33:15,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:33:15,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:33:15,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:33:15,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:33:15,068 INFO L87 Difference]: Start difference. First operand 58105 states and 81437 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:33:21,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:33:25,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:33:27,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:33:27,894 INFO L93 Difference]: Finished difference Result 127214 states and 180020 transitions. [2022-12-13 22:33:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:33:27,895 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 194 [2022-12-13 22:33:27,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:33:28,082 INFO L225 Difference]: With dead ends: 127214 [2022-12-13 22:33:28,082 INFO L226 Difference]: Without dead ends: 69262 [2022-12-13 22:33:28,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:33:28,172 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 1214 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 829 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 2884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 829 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-13 22:33:28,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 2467 Invalid, 2884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [829 Valid, 2053 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-12-13 22:33:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69262 states. [2022-12-13 22:33:31,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69262 to 61773. [2022-12-13 22:33:31,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61773 states, 49115 states have (on average 1.377237096609997) internal successors, (67643), 49672 states have internal predecessors, (67643), 9299 states have call successors, (9299), 3276 states have call predecessors, (9299), 3358 states have return successors, (9592), 9295 states have call predecessors, (9592), 9207 states have call successors, (9592) [2022-12-13 22:33:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61773 states to 61773 states and 86534 transitions. [2022-12-13 22:33:32,125 INFO L78 Accepts]: Start accepts. Automaton has 61773 states and 86534 transitions. Word has length 194 [2022-12-13 22:33:32,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:33:32,125 INFO L495 AbstractCegarLoop]: Abstraction has 61773 states and 86534 transitions. [2022-12-13 22:33:32,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:33:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand 61773 states and 86534 transitions. [2022-12-13 22:33:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-12-13 22:33:32,132 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:33:32,132 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:33:32,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 22:33:32,132 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:33:32,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:33:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash 499354282, now seen corresponding path program 1 times [2022-12-13 22:33:32,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:33:32,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483161784] [2022-12-13 22:33:32,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:33:32,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:33:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:33:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:33:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:33:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:33:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:33:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:33:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 22:33:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:33,540 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 42 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-12-13 22:33:33,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:33:33,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483161784] [2022-12-13 22:33:33,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483161784] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:33:33,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791149698] [2022-12-13 22:33:33,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:33:33,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:33:33,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:33:33,541 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:33:33,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 22:33:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:34,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 13962 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 22:33:34,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:33:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 22:33:34,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:33:34,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791149698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:33:34,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:33:34,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 22:33:34,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621004584] [2022-12-13 22:33:34,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:33:34,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:33:34,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:33:34,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:33:34,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:33:34,922 INFO L87 Difference]: Start difference. First operand 61773 states and 86534 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:33:37,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:33:37,679 INFO L93 Difference]: Finished difference Result 101910 states and 142981 transitions. [2022-12-13 22:33:37,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:33:37,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 192 [2022-12-13 22:33:37,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:33:37,771 INFO L225 Difference]: With dead ends: 101910 [2022-12-13 22:33:37,771 INFO L226 Difference]: Without dead ends: 40290 [2022-12-13 22:33:37,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:33:37,850 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 576 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:33:37,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1964 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 22:33:37,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40290 states. [2022-12-13 22:33:40,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40290 to 40264. [2022-12-13 22:33:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40264 states, 32128 states have (on average 1.366129233067729) internal successors, (43891), 32527 states have internal predecessors, (43891), 6007 states have call successors, (6007), 2096 states have call predecessors, (6007), 2128 states have return successors, (6112), 5955 states have call predecessors, (6112), 5917 states have call successors, (6112) [2022-12-13 22:33:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40264 states to 40264 states and 56010 transitions. [2022-12-13 22:33:40,234 INFO L78 Accepts]: Start accepts. Automaton has 40264 states and 56010 transitions. Word has length 192 [2022-12-13 22:33:40,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:33:40,234 INFO L495 AbstractCegarLoop]: Abstraction has 40264 states and 56010 transitions. [2022-12-13 22:33:40,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:33:40,234 INFO L276 IsEmpty]: Start isEmpty. Operand 40264 states and 56010 transitions. [2022-12-13 22:33:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-12-13 22:33:40,241 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:33:40,241 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:33:40,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 22:33:40,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-13 22:33:40,444 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:33:40,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:33:40,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1318466036, now seen corresponding path program 1 times [2022-12-13 22:33:40,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:33:40,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331684505] [2022-12-13 22:33:40,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:33:40,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:33:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:33:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:33:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:33:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:33:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 22:33:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 22:33:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 22:33:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 22:33:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:33:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-12-13 22:33:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:41,315 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-13 22:33:41,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:33:41,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331684505] [2022-12-13 22:33:41,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331684505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:33:41,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:33:41,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 22:33:41,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598604524] [2022-12-13 22:33:41,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:33:41,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 22:33:41,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:33:41,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 22:33:41,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:33:41,316 INFO L87 Difference]: Start difference. First operand 40264 states and 56010 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 22:33:48,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:33:54,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:33:54,414 INFO L93 Difference]: Finished difference Result 122315 states and 170652 transitions. [2022-12-13 22:33:54,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 22:33:54,415 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 200 [2022-12-13 22:33:54,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:33:54,630 INFO L225 Difference]: With dead ends: 122315 [2022-12-13 22:33:54,630 INFO L226 Difference]: Without dead ends: 82204 [2022-12-13 22:33:54,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2022-12-13 22:33:54,697 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 1292 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 3497 mSolverCounterSat, 787 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 4265 SdHoareTripleChecker+Invalid, 4285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 3497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-13 22:33:54,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 4265 Invalid, 4285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 3497 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-12-13 22:33:54,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82204 states. [2022-12-13 22:33:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82204 to 45415. [2022-12-13 22:33:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45415 states, 36236 states have (on average 1.3629539684291865) internal successors, (49388), 36702 states have internal predecessors, (49388), 6695 states have call successors, (6695), 2329 states have call predecessors, (6695), 2483 states have return successors, (6940), 6734 states have call predecessors, (6940), 6598 states have call successors, (6940) [2022-12-13 22:33:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45415 states to 45415 states and 63023 transitions. [2022-12-13 22:33:58,106 INFO L78 Accepts]: Start accepts. Automaton has 45415 states and 63023 transitions. Word has length 200 [2022-12-13 22:33:58,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:33:58,106 INFO L495 AbstractCegarLoop]: Abstraction has 45415 states and 63023 transitions. [2022-12-13 22:33:58,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 22:33:58,107 INFO L276 IsEmpty]: Start isEmpty. Operand 45415 states and 63023 transitions. [2022-12-13 22:33:58,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-12-13 22:33:58,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:33:58,115 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:33:58,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 22:33:58,115 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:33:58,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:33:58,115 INFO L85 PathProgramCache]: Analyzing trace with hash 72881282, now seen corresponding path program 1 times [2022-12-13 22:33:58,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:33:58,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518846788] [2022-12-13 22:33:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:33:58,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:33:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:33:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:33:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:33:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:33:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 22:33:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:33:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 22:33:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:33:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:33:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:33:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-12-13 22:33:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:33:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-12-13 22:33:58,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:33:58,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518846788] [2022-12-13 22:33:58,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518846788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:33:58,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:33:58,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:33:58,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137296004] [2022-12-13 22:33:58,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:33:58,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:33:58,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:33:58,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:33:58,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:33:58,839 INFO L87 Difference]: Start difference. First operand 45415 states and 63023 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:34:05,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:34:07,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:34:09,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:34:11,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:34:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:34:15,677 INFO L93 Difference]: Finished difference Result 98721 states and 137723 transitions. [2022-12-13 22:34:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 22:34:15,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 218 [2022-12-13 22:34:15,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:34:15,816 INFO L225 Difference]: With dead ends: 98721 [2022-12-13 22:34:15,817 INFO L226 Difference]: Without dead ends: 53459 [2022-12-13 22:34:15,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:34:15,907 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 1004 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 532 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 3016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-12-13 22:34:15,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 2885 Invalid, 3016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 2480 Invalid, 4 Unknown, 0 Unchecked, 12.6s Time] [2022-12-13 22:34:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53459 states. [2022-12-13 22:34:19,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53459 to 48468. [2022-12-13 22:34:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48468 states, 38615 states have (on average 1.363200828693513) internal successors, (52640), 39111 states have internal predecessors, (52640), 7201 states have call successors, (7201), 2487 states have call predecessors, (7201), 2651 states have return successors, (7456), 7250 states have call predecessors, (7456), 7104 states have call successors, (7456) [2022-12-13 22:34:19,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48468 states to 48468 states and 67297 transitions. [2022-12-13 22:34:19,579 INFO L78 Accepts]: Start accepts. Automaton has 48468 states and 67297 transitions. Word has length 218 [2022-12-13 22:34:19,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:34:19,579 INFO L495 AbstractCegarLoop]: Abstraction has 48468 states and 67297 transitions. [2022-12-13 22:34:19,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:34:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 48468 states and 67297 transitions. [2022-12-13 22:34:19,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-12-13 22:34:19,588 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:34:19,589 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:34:19,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 22:34:19,589 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:34:19,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:34:19,589 INFO L85 PathProgramCache]: Analyzing trace with hash 320024962, now seen corresponding path program 1 times [2022-12-13 22:34:19,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:34:19,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287858511] [2022-12-13 22:34:19,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:34:19,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:34:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:34:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:34:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:34:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:34:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:34:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:34:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-12-13 22:34:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:34:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-12-13 22:34:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-12-13 22:34:20,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:34:20,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287858511] [2022-12-13 22:34:20,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287858511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:34:20,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:34:20,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:34:20,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061198042] [2022-12-13 22:34:20,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:34:20,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:34:20,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:34:20,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:34:20,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:34:20,469 INFO L87 Difference]: Start difference. First operand 48468 states and 67297 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:34:26,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:34:29,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:34:29,334 INFO L93 Difference]: Finished difference Result 96192 states and 133796 transitions. [2022-12-13 22:34:29,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 22:34:29,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 219 [2022-12-13 22:34:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:34:29,450 INFO L225 Difference]: With dead ends: 96192 [2022-12-13 22:34:29,450 INFO L226 Difference]: Without dead ends: 47877 [2022-12-13 22:34:29,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:34:29,517 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 1374 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 729 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-13 22:34:29,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 2162 Invalid, 2336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 1606 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-12-13 22:34:29,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47877 states. [2022-12-13 22:34:32,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47877 to 43644. [2022-12-13 22:34:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43644 states, 34790 states have (on average 1.3605921241736132) internal successors, (47335), 35242 states have internal predecessors, (47335), 6470 states have call successors, (6470), 2233 states have call predecessors, (6470), 2383 states have return successors, (6679), 6516 states have call predecessors, (6679), 6382 states have call successors, (6679) [2022-12-13 22:34:32,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43644 states to 43644 states and 60484 transitions. [2022-12-13 22:34:32,691 INFO L78 Accepts]: Start accepts. Automaton has 43644 states and 60484 transitions. Word has length 219 [2022-12-13 22:34:32,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:34:32,691 INFO L495 AbstractCegarLoop]: Abstraction has 43644 states and 60484 transitions. [2022-12-13 22:34:32,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:34:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 43644 states and 60484 transitions. [2022-12-13 22:34:32,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-13 22:34:32,699 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:34:32,700 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:34:32,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 22:34:32,700 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:34:32,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:34:32,700 INFO L85 PathProgramCache]: Analyzing trace with hash -219920350, now seen corresponding path program 1 times [2022-12-13 22:34:32,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:34:32,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265260215] [2022-12-13 22:34:32,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:34:32,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:34:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:34:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:34:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:34:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:34:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 22:34:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:34:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 22:34:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:34:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-12-13 22:34:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-12-13 22:34:33,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:34:33,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265260215] [2022-12-13 22:34:33,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265260215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:34:33,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:34:33,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:34:33,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873104019] [2022-12-13 22:34:33,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:34:33,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:34:33,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:34:33,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:34:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:34:33,486 INFO L87 Difference]: Start difference. First operand 43644 states and 60484 transitions. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:34:38,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:34:41,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:34:41,721 INFO L93 Difference]: Finished difference Result 48489 states and 67382 transitions. [2022-12-13 22:34:41,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 22:34:41,722 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 222 [2022-12-13 22:34:41,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:34:41,811 INFO L225 Difference]: With dead ends: 48489 [2022-12-13 22:34:41,811 INFO L226 Difference]: Without dead ends: 44977 [2022-12-13 22:34:41,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:34:41,829 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 1373 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 729 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-13 22:34:41,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 2156 Invalid, 2336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 1606 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-13 22:34:41,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44977 states. [2022-12-13 22:34:44,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44977 to 41146. [2022-12-13 22:34:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41146 states, 32837 states have (on average 1.36005116179919) internal successors, (44660), 33260 states have internal predecessors, (44660), 6065 states have call successors, (6065), 2097 states have call predecessors, (6065), 2243 states have return successors, (6253), 6118 states have call predecessors, (6253), 5986 states have call successors, (6253) [2022-12-13 22:34:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41146 states to 41146 states and 56978 transitions. [2022-12-13 22:34:44,857 INFO L78 Accepts]: Start accepts. Automaton has 41146 states and 56978 transitions. Word has length 222 [2022-12-13 22:34:44,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:34:44,857 INFO L495 AbstractCegarLoop]: Abstraction has 41146 states and 56978 transitions. [2022-12-13 22:34:44,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:34:44,857 INFO L276 IsEmpty]: Start isEmpty. Operand 41146 states and 56978 transitions. [2022-12-13 22:34:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-12-13 22:34:44,866 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:34:44,866 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:34:44,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 22:34:44,866 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:34:44,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:34:44,867 INFO L85 PathProgramCache]: Analyzing trace with hash 301381015, now seen corresponding path program 1 times [2022-12-13 22:34:44,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:34:44,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650374270] [2022-12-13 22:34:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:34:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:34:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:34:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:34:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:34:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:34:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:34:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:34:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-12-13 22:34:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:34:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 22:34:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:45,670 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-12-13 22:34:45,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:34:45,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650374270] [2022-12-13 22:34:45,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650374270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:34:45,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:34:45,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:34:45,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481573575] [2022-12-13 22:34:45,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:34:45,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:34:45,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:34:45,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:34:45,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:34:45,672 INFO L87 Difference]: Start difference. First operand 41146 states and 56978 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:34:51,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:34:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:34:53,758 INFO L93 Difference]: Finished difference Result 45579 states and 63164 transitions. [2022-12-13 22:34:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 22:34:53,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 221 [2022-12-13 22:34:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:34:53,841 INFO L225 Difference]: With dead ends: 45579 [2022-12-13 22:34:53,841 INFO L226 Difference]: Without dead ends: 42067 [2022-12-13 22:34:53,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:34:53,857 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1367 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 724 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 2325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-13 22:34:53,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 2150 Invalid, 2325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 1600 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-12-13 22:34:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42067 states. [2022-12-13 22:34:56,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42067 to 38638. [2022-12-13 22:34:56,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38638 states, 30878 states have (on average 1.3595116264006737) internal successors, (41979), 31272 states have internal predecessors, (41979), 5657 states have call successors, (5657), 1958 states have call predecessors, (5657), 2102 states have return successors, (5826), 5719 states have call predecessors, (5826), 5589 states have call successors, (5826) [2022-12-13 22:34:56,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38638 states to 38638 states and 53462 transitions. [2022-12-13 22:34:56,729 INFO L78 Accepts]: Start accepts. Automaton has 38638 states and 53462 transitions. Word has length 221 [2022-12-13 22:34:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:34:56,730 INFO L495 AbstractCegarLoop]: Abstraction has 38638 states and 53462 transitions. [2022-12-13 22:34:56,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 22:34:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 38638 states and 53462 transitions. [2022-12-13 22:34:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-12-13 22:34:56,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:34:56,738 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:34:56,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 22:34:56,738 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:34:56,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:34:56,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1095766731, now seen corresponding path program 1 times [2022-12-13 22:34:56,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:34:56,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576051556] [2022-12-13 22:34:56,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:34:56,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:34:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:34:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:34:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:34:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:34:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:34:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:34:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:34:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:34:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:34:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:34:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 22:34:57,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:34:57,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576051556] [2022-12-13 22:34:57,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576051556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:34:57,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:34:57,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 22:34:57,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004298302] [2022-12-13 22:34:57,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:34:57,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:34:57,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:34:57,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:34:57,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:34:57,446 INFO L87 Difference]: Start difference. First operand 38638 states and 53462 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:35:03,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:35:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:35:06,538 INFO L93 Difference]: Finished difference Result 76121 states and 105428 transitions. [2022-12-13 22:35:06,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 22:35:06,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (13), 6 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 218 [2022-12-13 22:35:06,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:35:06,620 INFO L225 Difference]: With dead ends: 76121 [2022-12-13 22:35:06,620 INFO L226 Difference]: Without dead ends: 36660 [2022-12-13 22:35:06,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-12-13 22:35:06,670 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 1092 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 765 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-13 22:35:06,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 2163 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 1884 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-12-13 22:35:06,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36660 states. [2022-12-13 22:35:09,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36660 to 33341. [2022-12-13 22:35:09,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33341 states, 26301 states have (on average 1.354435192578229) internal successors, (35623), 26647 states have internal predecessors, (35623), 5176 states have call successors, (5176), 1740 states have call predecessors, (5176), 1863 states have return successors, (5298), 5250 states have call predecessors, (5298), 5136 states have call successors, (5298) [2022-12-13 22:35:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33341 states to 33341 states and 46097 transitions. [2022-12-13 22:35:09,326 INFO L78 Accepts]: Start accepts. Automaton has 33341 states and 46097 transitions. Word has length 218 [2022-12-13 22:35:09,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:35:09,327 INFO L495 AbstractCegarLoop]: Abstraction has 33341 states and 46097 transitions. [2022-12-13 22:35:09,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 22:35:09,327 INFO L276 IsEmpty]: Start isEmpty. Operand 33341 states and 46097 transitions. [2022-12-13 22:35:09,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-12-13 22:35:09,338 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:35:09,338 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:35:09,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-13 22:35:09,338 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:35:09,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:35:09,338 INFO L85 PathProgramCache]: Analyzing trace with hash 417377079, now seen corresponding path program 1 times [2022-12-13 22:35:09,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:35:09,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181397597] [2022-12-13 22:35:09,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:35:09,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:35:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:35:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:35:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:35:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:35:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 22:35:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:35:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 22:35:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 22:35:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 22:35:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:10,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-12-13 22:35:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:10,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:10,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:35:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:10,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-12-13 22:35:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-12-13 22:35:10,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:35:10,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181397597] [2022-12-13 22:35:10,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181397597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:35:10,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:35:10,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:35:10,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499766277] [2022-12-13 22:35:10,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:35:10,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:35:10,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:35:10,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:35:10,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:35:10,021 INFO L87 Difference]: Start difference. First operand 33341 states and 46097 transitions. Second operand has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-13 22:35:15,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:35:17,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:35:17,852 INFO L93 Difference]: Finished difference Result 70631 states and 97863 transitions. [2022-12-13 22:35:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 22:35:17,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 245 [2022-12-13 22:35:17,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:35:17,931 INFO L225 Difference]: With dead ends: 70631 [2022-12-13 22:35:17,931 INFO L226 Difference]: Without dead ends: 37443 [2022-12-13 22:35:17,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:35:17,974 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 637 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 410 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-13 22:35:17,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 1707 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 1307 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-13 22:35:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37443 states. [2022-12-13 22:35:20,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37443 to 33494. [2022-12-13 22:35:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33494 states, 26454 states have (on average 1.3530656989491192) internal successors, (35794), 26800 states have internal predecessors, (35794), 5176 states have call successors, (5176), 1740 states have call predecessors, (5176), 1863 states have return successors, (5298), 5250 states have call predecessors, (5298), 5136 states have call successors, (5298) [2022-12-13 22:35:20,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33494 states to 33494 states and 46268 transitions. [2022-12-13 22:35:20,675 INFO L78 Accepts]: Start accepts. Automaton has 33494 states and 46268 transitions. Word has length 245 [2022-12-13 22:35:20,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:35:20,676 INFO L495 AbstractCegarLoop]: Abstraction has 33494 states and 46268 transitions. [2022-12-13 22:35:20,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.11111111111111) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-13 22:35:20,676 INFO L276 IsEmpty]: Start isEmpty. Operand 33494 states and 46268 transitions. [2022-12-13 22:35:20,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-12-13 22:35:20,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:35:20,687 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:35:20,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-13 22:35:20,687 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:35:20,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:35:20,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1079654573, now seen corresponding path program 1 times [2022-12-13 22:35:20,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:35:20,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558644062] [2022-12-13 22:35:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:35:20,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:35:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:35:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:35:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:35:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:35:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 22:35:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:35:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 22:35:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 22:35:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 22:35:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 22:35:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-12-13 22:35:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:35:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-12-13 22:35:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-12-13 22:35:22,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:35:22,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558644062] [2022-12-13 22:35:22,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558644062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:35:22,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:35:22,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 22:35:22,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362023047] [2022-12-13 22:35:22,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:35:22,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 22:35:22,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:35:22,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 22:35:22,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:35:22,033 INFO L87 Difference]: Start difference. First operand 33494 states and 46268 transitions. Second operand has 12 states, 12 states have (on average 13.75) internal successors, (165), 5 states have internal predecessors, (165), 3 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 22:35:28,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:35:30,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:35:38,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:35:38,539 INFO L93 Difference]: Finished difference Result 99549 states and 137272 transitions. [2022-12-13 22:35:38,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 22:35:38,541 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 5 states have internal predecessors, (165), 3 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 251 [2022-12-13 22:35:38,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:35:38,704 INFO L225 Difference]: With dead ends: 99549 [2022-12-13 22:35:38,704 INFO L226 Difference]: Without dead ends: 66208 [2022-12-13 22:35:38,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2022-12-13 22:35:38,764 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 1173 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 4488 mSolverCounterSat, 614 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 4816 SdHoareTripleChecker+Invalid, 5104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 4488 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-12-13 22:35:38,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 4816 Invalid, 5104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 4488 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-12-13 22:35:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66208 states. [2022-12-13 22:35:41,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66208 to 33410. [2022-12-13 22:35:41,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33410 states, 26397 states have (on average 1.3529188922983673) internal successors, (35713), 26740 states have internal predecessors, (35713), 5212 states have call successors, (5212), 1740 states have call predecessors, (5212), 1800 states have return successors, (5271), 5226 states have call predecessors, (5271), 5172 states have call successors, (5271) [2022-12-13 22:35:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33410 states to 33410 states and 46196 transitions. [2022-12-13 22:35:41,931 INFO L78 Accepts]: Start accepts. Automaton has 33410 states and 46196 transitions. Word has length 251 [2022-12-13 22:35:41,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:35:41,932 INFO L495 AbstractCegarLoop]: Abstraction has 33410 states and 46196 transitions. [2022-12-13 22:35:41,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 5 states have internal predecessors, (165), 3 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 22:35:41,932 INFO L276 IsEmpty]: Start isEmpty. Operand 33410 states and 46196 transitions. [2022-12-13 22:35:41,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-12-13 22:35:41,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:35:41,940 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:35:41,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-13 22:35:41,940 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:35:41,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:35:41,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1083094205, now seen corresponding path program 1 times [2022-12-13 22:35:41,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:35:41,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470961054] [2022-12-13 22:35:41,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:35:41,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:35:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:35:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:35:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:35:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:35:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:35:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:35:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 22:35:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 22:35:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 22:35:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:35:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:35:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:35:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:35:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:35:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:35:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:35:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:35:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-12-13 22:35:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:42,869 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-12-13 22:35:42,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:35:42,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470961054] [2022-12-13 22:35:42,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470961054] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:35:42,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:35:42,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:35:42,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143393336] [2022-12-13 22:35:42,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:35:42,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:35:42,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:35:42,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:35:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:35:42,870 INFO L87 Difference]: Start difference. First operand 33410 states and 46196 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (31), 7 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 22:35:47,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:35:51,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:35:51,174 INFO L93 Difference]: Finished difference Result 70328 states and 97620 transitions. [2022-12-13 22:35:51,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 22:35:51,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (31), 7 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 299 [2022-12-13 22:35:51,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:35:51,257 INFO L225 Difference]: With dead ends: 70328 [2022-12-13 22:35:51,257 INFO L226 Difference]: Without dead ends: 37071 [2022-12-13 22:35:51,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:35:51,302 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 674 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 430 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-13 22:35:51,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 2173 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 1781 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-13 22:35:51,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37071 states. [2022-12-13 22:35:54,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37071 to 33410. [2022-12-13 22:35:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33410 states, 26397 states have (on average 1.3491684661135734) internal successors, (35614), 26740 states have internal predecessors, (35614), 5212 states have call successors, (5212), 1740 states have call predecessors, (5212), 1800 states have return successors, (5271), 5226 states have call predecessors, (5271), 5172 states have call successors, (5271) [2022-12-13 22:35:54,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33410 states to 33410 states and 46097 transitions. [2022-12-13 22:35:54,395 INFO L78 Accepts]: Start accepts. Automaton has 33410 states and 46097 transitions. Word has length 299 [2022-12-13 22:35:54,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:35:54,395 INFO L495 AbstractCegarLoop]: Abstraction has 33410 states and 46097 transitions. [2022-12-13 22:35:54,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (31), 7 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 22:35:54,396 INFO L276 IsEmpty]: Start isEmpty. Operand 33410 states and 46097 transitions. [2022-12-13 22:35:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-12-13 22:35:54,406 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:35:54,406 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:35:54,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-13 22:35:54,406 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:35:54,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:35:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1647394120, now seen corresponding path program 1 times [2022-12-13 22:35:54,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:35:54,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426540349] [2022-12-13 22:35:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:35:54,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:35:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:35:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:35:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:35:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:35:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 22:35:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:35:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:35:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 22:35:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 22:35:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 22:35:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:35:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:35:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:35:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:35:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:35:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:35:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:35:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:35:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:35:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:35:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:35:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:35:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:35:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:35:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:35:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:35:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:35:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:35:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-12-13 22:35:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-12-13 22:35:55,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:35:55,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426540349] [2022-12-13 22:35:55,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426540349] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:35:55,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96668797] [2022-12-13 22:35:55,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:35:55,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:35:55,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:35:55,775 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:35:55,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 22:35:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:35:57,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 15230 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 22:35:57,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:35:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-12-13 22:35:57,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:35:57,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96668797] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:35:57,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:35:57,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-12-13 22:35:57,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789303050] [2022-12-13 22:35:57,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:35:57,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:35:57,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:35:57,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:35:57,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-12-13 22:35:57,644 INFO L87 Difference]: Start difference. First operand 33410 states and 46097 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-13 22:36:00,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:36:03,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:36:03,217 INFO L93 Difference]: Finished difference Result 69223 states and 95812 transitions. [2022-12-13 22:36:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:36:03,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 402 [2022-12-13 22:36:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:36:03,299 INFO L225 Difference]: With dead ends: 69223 [2022-12-13 22:36:03,299 INFO L226 Difference]: Without dead ends: 35966 [2022-12-13 22:36:03,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:36:03,351 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 37 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:36:03,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3707 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 143 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 22:36:03,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35966 states. [2022-12-13 22:36:06,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35966 to 34139. [2022-12-13 22:36:06,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34139 states, 26964 states have (on average 1.3538421599169264) internal successors, (36505), 27307 states have internal predecessors, (36505), 5374 states have call successors, (5374), 1740 states have call predecessors, (5374), 1800 states have return successors, (5433), 5388 states have call predecessors, (5433), 5334 states have call successors, (5433) [2022-12-13 22:36:06,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34139 states to 34139 states and 47312 transitions. [2022-12-13 22:36:06,609 INFO L78 Accepts]: Start accepts. Automaton has 34139 states and 47312 transitions. Word has length 402 [2022-12-13 22:36:06,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:36:06,609 INFO L495 AbstractCegarLoop]: Abstraction has 34139 states and 47312 transitions. [2022-12-13 22:36:06,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-13 22:36:06,610 INFO L276 IsEmpty]: Start isEmpty. Operand 34139 states and 47312 transitions. [2022-12-13 22:36:06,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-12-13 22:36:06,621 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:36:06,621 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:36:06,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 22:36:06,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:36:06,823 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:36:06,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:36:06,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1422870279, now seen corresponding path program 1 times [2022-12-13 22:36:06,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:36:06,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516218866] [2022-12-13 22:36:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:36:06,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:36:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:36:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:36:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:36:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:36:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:36:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:36:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 22:36:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 22:36:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 22:36:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:36:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:36:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:36:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:36:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:36:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:36:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:36:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:36:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:36:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:36:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:36:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:36:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:36:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:36:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:36:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:36:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:36:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:36:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2022-12-13 22:36:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:08,354 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2022-12-13 22:36:08,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:36:08,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516218866] [2022-12-13 22:36:08,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516218866] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:36:08,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318591666] [2022-12-13 22:36:08,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:36:08,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:36:08,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:36:08,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:36:08,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 22:36:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:10,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 15319 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 22:36:10,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:36:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2022-12-13 22:36:10,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:36:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2022-12-13 22:36:10,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318591666] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:36:10,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 22:36:10,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 13 [2022-12-13 22:36:10,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736929168] [2022-12-13 22:36:10,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 22:36:10,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 22:36:10,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:36:10,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 22:36:10,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 22:36:10,449 INFO L87 Difference]: Start difference. First operand 34139 states and 47312 transitions. Second operand has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 7 states have internal predecessors, (175), 4 states have call successors, (55), 7 states have call predecessors, (55), 3 states have return successors, (40), 5 states have call predecessors, (40), 4 states have call successors, (40) [2022-12-13 22:36:17,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:36:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:36:21,595 INFO L93 Difference]: Finished difference Result 74135 states and 103065 transitions. [2022-12-13 22:36:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 22:36:21,596 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 7 states have internal predecessors, (175), 4 states have call successors, (55), 7 states have call predecessors, (55), 3 states have return successors, (40), 5 states have call predecessors, (40), 4 states have call successors, (40) Word has length 427 [2022-12-13 22:36:21,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:36:21,686 INFO L225 Difference]: With dead ends: 74135 [2022-12-13 22:36:21,686 INFO L226 Difference]: Without dead ends: 40149 [2022-12-13 22:36:21,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 957 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2022-12-13 22:36:21,734 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 787 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 3648 mSolverCounterSat, 582 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3515 SdHoareTripleChecker+Invalid, 4231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 3648 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-13 22:36:21,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3515 Invalid, 4231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 3648 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-12-13 22:36:21,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40149 states. [2022-12-13 22:36:25,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40149 to 34625. [2022-12-13 22:36:25,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34625 states, 27288 states have (on average 1.3555775432424508) internal successors, (36991), 27631 states have internal predecessors, (36991), 5536 states have call successors, (5536), 1740 states have call predecessors, (5536), 1800 states have return successors, (5595), 5550 states have call predecessors, (5595), 5496 states have call successors, (5595) [2022-12-13 22:36:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34625 states to 34625 states and 48122 transitions. [2022-12-13 22:36:25,210 INFO L78 Accepts]: Start accepts. Automaton has 34625 states and 48122 transitions. Word has length 427 [2022-12-13 22:36:25,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:36:25,210 INFO L495 AbstractCegarLoop]: Abstraction has 34625 states and 48122 transitions. [2022-12-13 22:36:25,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 7 states have internal predecessors, (175), 4 states have call successors, (55), 7 states have call predecessors, (55), 3 states have return successors, (40), 5 states have call predecessors, (40), 4 states have call successors, (40) [2022-12-13 22:36:25,211 INFO L276 IsEmpty]: Start isEmpty. Operand 34625 states and 48122 transitions. [2022-12-13 22:36:25,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2022-12-13 22:36:25,222 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:36:25,222 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:36:25,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 22:36:25,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:36:25,425 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:36:25,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:36:25,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1612250311, now seen corresponding path program 1 times [2022-12-13 22:36:25,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:36:25,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71948143] [2022-12-13 22:36:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:36:25,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:36:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:36:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 22:36:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:36:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 22:36:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:36:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:36:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 22:36:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 22:36:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 22:36:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:36:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:36:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:36:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:36:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:36:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:36:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:36:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:36:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:36:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:36:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:36:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:36:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:36:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:36:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:36:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:36:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:36:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:36:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:36:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:36:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-12-13 22:36:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2022-12-13 22:36:27,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:36:27,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71948143] [2022-12-13 22:36:27,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71948143] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:36:27,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131127099] [2022-12-13 22:36:27,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:36:27,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:36:27,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:36:27,886 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:36:27,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 22:36:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:29,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 15408 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 22:36:29,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:36:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 989 trivial. 0 not checked. [2022-12-13 22:36:29,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:36:29,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131127099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:36:29,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:36:29,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-12-13 22:36:29,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49760736] [2022-12-13 22:36:29,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:36:29,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:36:29,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:36:29,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:36:29,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-12-13 22:36:29,959 INFO L87 Difference]: Start difference. First operand 34625 states and 48122 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-13 22:36:33,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:36:33,847 INFO L93 Difference]: Finished difference Result 78989 states and 110254 transitions. [2022-12-13 22:36:33,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:36:33,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 452 [2022-12-13 22:36:33,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:36:33,937 INFO L225 Difference]: With dead ends: 78989 [2022-12-13 22:36:33,938 INFO L226 Difference]: Without dead ends: 44456 [2022-12-13 22:36:33,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2022-12-13 22:36:33,987 INFO L413 NwaCegarLoop]: 991 mSDtfsCounter, 533 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 5158 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:36:33,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 5158 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 22:36:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44456 states. [2022-12-13 22:36:37,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44456 to 34628. [2022-12-13 22:36:37,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34628 states, 27291 states have (on average 1.355538455901213) internal successors, (36994), 27634 states have internal predecessors, (36994), 5536 states have call successors, (5536), 1740 states have call predecessors, (5536), 1800 states have return successors, (5595), 5550 states have call predecessors, (5595), 5496 states have call successors, (5595) [2022-12-13 22:36:37,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34628 states to 34628 states and 48125 transitions. [2022-12-13 22:36:37,509 INFO L78 Accepts]: Start accepts. Automaton has 34628 states and 48125 transitions. Word has length 452 [2022-12-13 22:36:37,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:36:37,509 INFO L495 AbstractCegarLoop]: Abstraction has 34628 states and 48125 transitions. [2022-12-13 22:36:37,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-13 22:36:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 34628 states and 48125 transitions. [2022-12-13 22:36:37,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-12-13 22:36:37,521 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:36:37,521 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:36:37,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 22:36:37,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-12-13 22:36:37,724 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:36:37,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:36:37,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2124118578, now seen corresponding path program 1 times [2022-12-13 22:36:37,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:36:37,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504251544] [2022-12-13 22:36:37,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:36:37,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:36:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:36:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 22:36:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 22:36:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:36:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 22:36:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 22:36:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:36:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-12-13 22:36:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-12-13 22:36:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 22:36:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:36:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:36:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:36:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:36:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:36:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:36:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:36:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:36:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:36:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:36:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:36:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:36:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:36:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:36:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:36:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:36:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:36:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:36:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:36:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:36:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-12-13 22:36:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2022-12-13 22:36:40,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:36:40,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504251544] [2022-12-13 22:36:40,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504251544] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:36:40,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353508376] [2022-12-13 22:36:40,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:36:40,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:36:40,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:36:40,307 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:36:40,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 22:36:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:42,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 15510 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 22:36:42,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:36:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2022-12-13 22:36:42,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:36:42,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353508376] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:36:42,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:36:42,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2022-12-13 22:36:42,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673361662] [2022-12-13 22:36:42,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:36:42,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:36:42,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:36:42,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:36:42,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 22:36:42,363 INFO L87 Difference]: Start difference. First operand 34628 states and 48125 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-13 22:36:45,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:36:47,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:36:47,865 INFO L93 Difference]: Finished difference Result 69752 states and 96998 transitions. [2022-12-13 22:36:47,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:36:47,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) Word has length 478 [2022-12-13 22:36:47,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:36:47,953 INFO L225 Difference]: With dead ends: 69752 [2022-12-13 22:36:47,953 INFO L226 Difference]: Without dead ends: 35280 [2022-12-13 22:36:48,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-12-13 22:36:48,015 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 9 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4509 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:36:48,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4509 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 22:36:48,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35280 states. [2022-12-13 22:36:51,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35280 to 35114. [2022-12-13 22:36:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35114 states, 27696 states have (on average 1.350339399191219) internal successors, (37399), 28039 states have internal predecessors, (37399), 5536 states have call successors, (5536), 1740 states have call predecessors, (5536), 1881 states have return successors, (5775), 5631 states have call predecessors, (5775), 5496 states have call successors, (5775) [2022-12-13 22:36:51,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35114 states to 35114 states and 48710 transitions. [2022-12-13 22:36:51,535 INFO L78 Accepts]: Start accepts. Automaton has 35114 states and 48710 transitions. Word has length 478 [2022-12-13 22:36:51,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:36:51,536 INFO L495 AbstractCegarLoop]: Abstraction has 35114 states and 48710 transitions. [2022-12-13 22:36:51,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-13 22:36:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 35114 states and 48710 transitions. [2022-12-13 22:36:51,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-12-13 22:36:51,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:36:51,548 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:36:51,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 22:36:51,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-12-13 22:36:51,750 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:36:51,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:36:51,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1744342876, now seen corresponding path program 1 times [2022-12-13 22:36:51,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:36:51,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458168643] [2022-12-13 22:36:51,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:36:51,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:36:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:36:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 22:36:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 22:36:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:36:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 22:36:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 22:36:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:36:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:36:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-12-13 22:36:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:36:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:36:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-12-13 22:36:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 22:36:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:36:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:36:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:36:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:36:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:36:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:36:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:36:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:36:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:36:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:36:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:36:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:36:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:36:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:36:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:36:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:36:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:36:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:36:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:36:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:36:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:36:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:36:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-12-13 22:36:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:54,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2022-12-13 22:36:54,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:36:54,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458168643] [2022-12-13 22:36:54,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458168643] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:36:54,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451139845] [2022-12-13 22:36:54,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:36:54,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:36:54,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:36:54,351 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:36:54,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 22:36:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:36:58,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 15577 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 22:36:58,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:36:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2022-12-13 22:36:58,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:36:58,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451139845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:36:58,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:36:58,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 15 [2022-12-13 22:36:58,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088219351] [2022-12-13 22:36:58,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:36:58,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:36:58,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:36:58,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:36:58,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:36:58,172 INFO L87 Difference]: Start difference. First operand 35114 states and 48710 transitions. Second operand has 6 states, 6 states have (on average 33.0) internal successors, (198), 5 states have internal predecessors, (198), 2 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-13 22:37:01,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:37:01,799 INFO L93 Difference]: Finished difference Result 70099 states and 97265 transitions. [2022-12-13 22:37:01,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:37:01,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 5 states have internal predecessors, (198), 2 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 498 [2022-12-13 22:37:01,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:37:01,884 INFO L225 Difference]: With dead ends: 70099 [2022-12-13 22:37:01,884 INFO L226 Difference]: Without dead ends: 35116 [2022-12-13 22:37:01,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-12-13 22:37:01,941 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 138 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:37:01,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 3726 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 22:37:01,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35116 states. [2022-12-13 22:37:05,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35116 to 35114. [2022-12-13 22:37:05,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35114 states, 27696 states have (on average 1.3503032928942809) internal successors, (37398), 28039 states have internal predecessors, (37398), 5536 states have call successors, (5536), 1740 states have call predecessors, (5536), 1881 states have return successors, (5775), 5631 states have call predecessors, (5775), 5496 states have call successors, (5775) [2022-12-13 22:37:05,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35114 states to 35114 states and 48709 transitions. [2022-12-13 22:37:05,412 INFO L78 Accepts]: Start accepts. Automaton has 35114 states and 48709 transitions. Word has length 498 [2022-12-13 22:37:05,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:37:05,412 INFO L495 AbstractCegarLoop]: Abstraction has 35114 states and 48709 transitions. [2022-12-13 22:37:05,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 5 states have internal predecessors, (198), 2 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-13 22:37:05,412 INFO L276 IsEmpty]: Start isEmpty. Operand 35114 states and 48709 transitions. [2022-12-13 22:37:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2022-12-13 22:37:05,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:37:05,425 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:37:05,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 22:37:05,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-12-13 22:37:05,627 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:37:05,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:37:05,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1735385338, now seen corresponding path program 2 times [2022-12-13 22:37:05,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:37:05,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272196184] [2022-12-13 22:37:05,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:37:05,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:37:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:37:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 22:37:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 22:37:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:37:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:37:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:37:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:37:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 22:37:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:37:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 22:37:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:37:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:37:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-12-13 22:37:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:37:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:37:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-12-13 22:37:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 22:37:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:37:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:37:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:37:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:37:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:37:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:37:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:37:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:37:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:37:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:37:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:37:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:37:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:37:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:37:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:37:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:37:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:37:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:37:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:37:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:37:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-12-13 22:37:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2022-12-13 22:37:08,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:37:08,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272196184] [2022-12-13 22:37:08,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272196184] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:37:08,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518717688] [2022-12-13 22:37:08,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 22:37:08,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:37:08,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:37:08,094 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:37:08,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 22:37:14,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 22:37:14,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 22:37:14,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 15644 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 22:37:14,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:37:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 1070 trivial. 0 not checked. [2022-12-13 22:37:14,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:37:14,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518717688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:37:14,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:37:14,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 12 [2022-12-13 22:37:14,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103758815] [2022-12-13 22:37:14,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:37:14,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:37:14,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:37:14,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:37:14,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:37:14,496 INFO L87 Difference]: Start difference. First operand 35114 states and 48709 transitions. Second operand has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 5 states have internal predecessors, (190), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-13 22:37:18,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:37:18,051 INFO L93 Difference]: Finished difference Result 79770 states and 111248 transitions. [2022-12-13 22:37:18,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:37:18,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 5 states have internal predecessors, (190), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) Word has length 518 [2022-12-13 22:37:18,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:37:18,147 INFO L225 Difference]: With dead ends: 79770 [2022-12-13 22:37:18,147 INFO L226 Difference]: Without dead ends: 44677 [2022-12-13 22:37:18,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:37:18,203 INFO L413 NwaCegarLoop]: 797 mSDtfsCounter, 220 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 4732 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:37:18,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 4732 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:37:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44677 states. [2022-12-13 22:37:21,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44677 to 35121. [2022-12-13 22:37:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35121 states, 27701 states have (on average 1.3502400635356124) internal successors, (37403), 28044 states have internal predecessors, (37403), 5536 states have call successors, (5536), 1740 states have call predecessors, (5536), 1883 states have return successors, (5778), 5633 states have call predecessors, (5778), 5496 states have call successors, (5778) [2022-12-13 22:37:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35121 states to 35121 states and 48717 transitions. [2022-12-13 22:37:21,735 INFO L78 Accepts]: Start accepts. Automaton has 35121 states and 48717 transitions. Word has length 518 [2022-12-13 22:37:21,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:37:21,735 INFO L495 AbstractCegarLoop]: Abstraction has 35121 states and 48717 transitions. [2022-12-13 22:37:21,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 5 states have internal predecessors, (190), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-13 22:37:21,736 INFO L276 IsEmpty]: Start isEmpty. Operand 35121 states and 48717 transitions. [2022-12-13 22:37:21,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2022-12-13 22:37:21,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:37:21,748 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 13, 13, 13, 13, 13, 13, 13, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:37:21,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 22:37:21,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-12-13 22:37:21,950 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:37:21,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:37:21,952 INFO L85 PathProgramCache]: Analyzing trace with hash 795724759, now seen corresponding path program 1 times [2022-12-13 22:37:21,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:37:21,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530090348] [2022-12-13 22:37:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:37:21,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:37:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:37:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 22:37:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 22:37:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 22:37:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:37:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 22:37:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:37:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:37:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 22:37:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:37:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:37:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:37:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:37:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-12-13 22:37:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:37:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:37:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:23,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-12-13 22:37:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-12-13 22:37:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:37:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:37:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:37:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:37:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:37:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:37:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:37:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:37:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:37:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:37:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:37:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:37:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:37:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:37:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:37:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:37:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:37:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:37:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:37:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:37:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:37:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:37:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2022-12-13 22:37:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:37:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1315 trivial. 0 not checked. [2022-12-13 22:37:24,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:37:24,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530090348] [2022-12-13 22:37:24,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530090348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:37:24,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:37:24,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 22:37:24,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940209138] [2022-12-13 22:37:24,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:37:24,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 22:37:24,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:37:24,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 22:37:24,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:37:24,190 INFO L87 Difference]: Start difference. First operand 35121 states and 48717 transitions. Second operand has 11 states, 11 states have (on average 15.909090909090908) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (47), 7 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-13 22:37:30,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:37:34,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:37:34,022 INFO L93 Difference]: Finished difference Result 72616 states and 100518 transitions. [2022-12-13 22:37:34,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 22:37:34,023 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.909090909090908) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (47), 7 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 519 [2022-12-13 22:37:34,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:37:34,116 INFO L225 Difference]: With dead ends: 72616 [2022-12-13 22:37:34,116 INFO L226 Difference]: Without dead ends: 37567 [2022-12-13 22:37:34,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2022-12-13 22:37:34,169 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1479 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 667 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-13 22:37:34,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 2360 Invalid, 2692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [667 Valid, 2024 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-12-13 22:37:34,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37567 states. [2022-12-13 22:37:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37567 to 35119. [2022-12-13 22:37:38,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35119 states, 27699 states have (on average 1.350120942994332) internal successors, (37397), 28043 states have internal predecessors, (37397), 5536 states have call successors, (5536), 1740 states have call predecessors, (5536), 1883 states have return successors, (5777), 5632 states have call predecessors, (5777), 5496 states have call successors, (5777) [2022-12-13 22:37:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35119 states to 35119 states and 48710 transitions. [2022-12-13 22:37:38,236 INFO L78 Accepts]: Start accepts. Automaton has 35119 states and 48710 transitions. Word has length 519 [2022-12-13 22:37:38,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:37:38,236 INFO L495 AbstractCegarLoop]: Abstraction has 35119 states and 48710 transitions. [2022-12-13 22:37:38,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.909090909090908) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (47), 7 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-13 22:37:38,236 INFO L276 IsEmpty]: Start isEmpty. Operand 35119 states and 48710 transitions. [2022-12-13 22:37:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-12-13 22:37:38,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:37:38,250 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:37:38,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-13 22:37:38,251 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:37:38,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:37:38,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1438255604, now seen corresponding path program 1 times [2022-12-13 22:37:38,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:37:38,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652307736] [2022-12-13 22:37:38,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:37:38,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:38:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:38:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:38:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:38:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 22:38:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:38:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:38:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 22:38:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:38:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 22:38:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:38:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:38:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 22:38:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:38:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-12-13 22:38:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:38:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:38:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-12-13 22:38:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:38:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:38:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-12-13 22:38:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-12-13 22:38:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:38:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:38:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:38:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:38:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:38:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:38:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:38:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:38:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:38:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:38:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:38:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:38:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:38:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:38:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:38:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:38:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:38:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:38:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:38:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:38:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2022-12-13 22:38:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:04,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2022-12-13 22:38:04,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:38:04,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652307736] [2022-12-13 22:38:04,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652307736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:38:04,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:38:04,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 22:38:04,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903968379] [2022-12-13 22:38:04,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:38:04,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 22:38:04,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:38:04,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 22:38:04,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 22:38:04,833 INFO L87 Difference]: Start difference. First operand 35119 states and 48710 transitions. Second operand has 14 states, 14 states have (on average 13.214285714285714) internal successors, (185), 9 states have internal predecessors, (185), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-13 22:38:14,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:38:16,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:38:18,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:38:20,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:38:22,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:38:26,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:38:26,097 INFO L93 Difference]: Finished difference Result 74385 states and 102822 transitions. [2022-12-13 22:38:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 22:38:26,098 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.214285714285714) internal successors, (185), 9 states have internal predecessors, (185), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 559 [2022-12-13 22:38:26,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:38:26,187 INFO L225 Difference]: With dead ends: 74385 [2022-12-13 22:38:26,187 INFO L226 Difference]: Without dead ends: 39325 [2022-12-13 22:38:26,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=211, Invalid=845, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 22:38:26,241 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 1789 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 930 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 4273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 930 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:38:26,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1830 Valid, 3187 Invalid, 4273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [930 Valid, 3338 Invalid, 5 Unknown, 0 Unchecked, 16.3s Time] [2022-12-13 22:38:26,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39325 states. [2022-12-13 22:38:29,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39325 to 36344. [2022-12-13 22:38:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36344 states, 28835 states have (on average 1.3510664123461071) internal successors, (38958), 29185 states have internal predecessors, (38958), 5586 states have call successors, (5586), 1779 states have call predecessors, (5586), 1922 states have return successors, (5836), 5676 states have call predecessors, (5836), 5546 states have call successors, (5836) [2022-12-13 22:38:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36344 states to 36344 states and 50380 transitions. [2022-12-13 22:38:29,921 INFO L78 Accepts]: Start accepts. Automaton has 36344 states and 50380 transitions. Word has length 559 [2022-12-13 22:38:29,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:38:29,921 INFO L495 AbstractCegarLoop]: Abstraction has 36344 states and 50380 transitions. [2022-12-13 22:38:29,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.214285714285714) internal successors, (185), 9 states have internal predecessors, (185), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-13 22:38:29,921 INFO L276 IsEmpty]: Start isEmpty. Operand 36344 states and 50380 transitions. [2022-12-13 22:38:29,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-12-13 22:38:29,935 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:38:29,936 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:38:29,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-13 22:38:29,936 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:38:29,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:38:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash 188010599, now seen corresponding path program 1 times [2022-12-13 22:38:29,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:38:29,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206961986] [2022-12-13 22:38:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:38:29,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:38:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:38:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:38:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:38:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 22:38:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 22:38:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:38:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:38:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:38:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:38:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 22:38:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:38:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:38:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:38:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:38:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-12-13 22:38:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:38:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:38:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-12-13 22:38:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-12-13 22:38:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:38:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:38:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:38:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:38:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:38:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:38:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:38:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:38:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:38:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:38:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:38:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:38:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:38:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:38:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:38:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:38:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:38:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:38:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:38:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:38:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:38:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:38:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-12-13 22:38:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-12-13 22:38:32,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:38:32,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206961986] [2022-12-13 22:38:32,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206961986] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:38:32,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563681201] [2022-12-13 22:38:32,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:38:32,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:38:32,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:38:32,530 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:38:32,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 22:38:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:38:40,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 15728 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 22:38:40,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:38:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2022-12-13 22:38:40,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:38:40,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563681201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:38:40,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:38:40,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 12 [2022-12-13 22:38:40,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160570922] [2022-12-13 22:38:40,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:38:40,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 22:38:40,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:38:40,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 22:38:40,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:38:40,484 INFO L87 Difference]: Start difference. First operand 36344 states and 50380 transitions. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 5 states have internal predecessors, (201), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (47), 4 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-13 22:38:44,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:38:44,213 INFO L93 Difference]: Finished difference Result 72635 states and 100699 transitions. [2022-12-13 22:38:44,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:38:44,214 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 5 states have internal predecessors, (201), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (47), 4 states have call predecessors, (47), 2 states have call successors, (47) Word has length 544 [2022-12-13 22:38:44,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:38:44,287 INFO L225 Difference]: With dead ends: 72635 [2022-12-13 22:38:44,287 INFO L226 Difference]: Without dead ends: 36339 [2022-12-13 22:38:44,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 689 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:38:44,350 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 0 mSDsluCounter, 3753 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4506 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:38:44,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4506 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:38:44,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36339 states. [2022-12-13 22:38:47,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36339 to 36339. [2022-12-13 22:38:47,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36339 states, 28832 states have (on average 1.351068257491676) internal successors, (38954), 29181 states have internal predecessors, (38954), 5586 states have call successors, (5586), 1779 states have call predecessors, (5586), 1920 states have return successors, (5834), 5675 states have call predecessors, (5834), 5546 states have call successors, (5834) [2022-12-13 22:38:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36339 states to 36339 states and 50374 transitions. [2022-12-13 22:38:48,024 INFO L78 Accepts]: Start accepts. Automaton has 36339 states and 50374 transitions. Word has length 544 [2022-12-13 22:38:48,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:38:48,024 INFO L495 AbstractCegarLoop]: Abstraction has 36339 states and 50374 transitions. [2022-12-13 22:38:48,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 5 states have internal predecessors, (201), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (47), 4 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-13 22:38:48,024 INFO L276 IsEmpty]: Start isEmpty. Operand 36339 states and 50374 transitions. [2022-12-13 22:38:48,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2022-12-13 22:38:48,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:38:48,038 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:38:48,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 22:38:48,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:38:48,240 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:38:48,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:38:48,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1515439337, now seen corresponding path program 1 times [2022-12-13 22:38:48,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:38:48,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869343700] [2022-12-13 22:38:48,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:38:48,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:38:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:39:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:39:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:39:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 22:39:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:39:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:39:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 22:39:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:39:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 22:39:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:39:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:39:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 22:39:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:39:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-12-13 22:39:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:39:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:39:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-12-13 22:39:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:39:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:39:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-12-13 22:39:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-12-13 22:39:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:39:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:39:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:39:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:39:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:39:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:39:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:39:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:39:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:39:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:39:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:39:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:39:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:39:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:39:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:39:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:39:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:39:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:39:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:39:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:39:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2022-12-13 22:39:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2022-12-13 22:39:01,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:39:01,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869343700] [2022-12-13 22:39:01,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869343700] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:39:01,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688671337] [2022-12-13 22:39:01,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:39:01,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:39:01,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:39:01,604 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:39:01,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 22:39:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:09,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 15793 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-13 22:39:09,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:39:09,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:39:09,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 22:39:09,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 22:39:09,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 22:39:09,898 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 15 treesize of output 7 [2022-12-13 22:39:09,902 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 15 treesize of output 7 [2022-12-13 22:39:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 176 proven. 5 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2022-12-13 22:39:09,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:39:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2022-12-13 22:39:10,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688671337] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:39:10,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 22:39:10,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 8] total 27 [2022-12-13 22:39:10,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583888787] [2022-12-13 22:39:10,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 22:39:10,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 22:39:10,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:39:10,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 22:39:10,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2022-12-13 22:39:10,547 INFO L87 Difference]: Start difference. First operand 36339 states and 50374 transitions. Second operand has 27 states, 27 states have (on average 13.11111111111111) internal successors, (354), 22 states have internal predecessors, (354), 5 states have call successors, (104), 8 states have call predecessors, (104), 3 states have return successors, (90), 5 states have call predecessors, (90), 5 states have call successors, (90) [2022-12-13 22:39:28,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:30,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:32,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:34,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:36,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:38,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:40,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:42,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:44,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:46,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:39:51,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:39:51,211 INFO L93 Difference]: Finished difference Result 84792 states and 117362 transitions. [2022-12-13 22:39:51,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-13 22:39:51,211 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 13.11111111111111) internal successors, (354), 22 states have internal predecessors, (354), 5 states have call successors, (104), 8 states have call predecessors, (104), 3 states have return successors, (90), 5 states have call predecessors, (90), 5 states have call successors, (90) Word has length 563 [2022-12-13 22:39:51,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:39:51,315 INFO L225 Difference]: With dead ends: 84792 [2022-12-13 22:39:51,315 INFO L226 Difference]: Without dead ends: 48512 [2022-12-13 22:39:51,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1329 GetRequests, 1274 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=490, Invalid=2702, Unknown=0, NotChecked=0, Total=3192 [2022-12-13 22:39:51,374 INFO L413 NwaCegarLoop]: 995 mSDtfsCounter, 2672 mSDsluCounter, 16230 mSDsCounter, 0 mSdLazyCounter, 9594 mSolverCounterSat, 937 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2730 SdHoareTripleChecker+Valid, 17225 SdHoareTripleChecker+Invalid, 10541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 937 IncrementalHoareTripleChecker+Valid, 9594 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2022-12-13 22:39:51,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2730 Valid, 17225 Invalid, 10541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [937 Valid, 9594 Invalid, 10 Unknown, 0 Unchecked, 34.9s Time] [2022-12-13 22:39:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48512 states. [2022-12-13 22:39:55,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48512 to 38090. [2022-12-13 22:39:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38090 states, 30325 states have (on average 1.348722176422094) internal successors, (40900), 30693 states have internal predecessors, (40900), 5723 states have call successors, (5723), 1880 states have call predecessors, (5723), 2041 states have return successors, (6027), 5813 states have call predecessors, (6027), 5683 states have call successors, (6027) [2022-12-13 22:39:55,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38090 states to 38090 states and 52650 transitions. [2022-12-13 22:39:55,447 INFO L78 Accepts]: Start accepts. Automaton has 38090 states and 52650 transitions. Word has length 563 [2022-12-13 22:39:55,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:39:55,447 INFO L495 AbstractCegarLoop]: Abstraction has 38090 states and 52650 transitions. [2022-12-13 22:39:55,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 13.11111111111111) internal successors, (354), 22 states have internal predecessors, (354), 5 states have call successors, (104), 8 states have call predecessors, (104), 3 states have return successors, (90), 5 states have call predecessors, (90), 5 states have call successors, (90) [2022-12-13 22:39:55,448 INFO L276 IsEmpty]: Start isEmpty. Operand 38090 states and 52650 transitions. [2022-12-13 22:39:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2022-12-13 22:39:55,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:39:55,464 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:39:55,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-13 22:39:55,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:39:55,665 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:39:55,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:39:55,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1484129677, now seen corresponding path program 1 times [2022-12-13 22:39:55,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:39:55,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028936841] [2022-12-13 22:39:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:39:55,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:39:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:39:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:39:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:39:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 22:39:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:39:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:39:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 22:39:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 22:39:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 22:39:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 22:39:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:39:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 22:39:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:39:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:39:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-12-13 22:39:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:39:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 22:39:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:39:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:39:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-12-13 22:39:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:39:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:39:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-12-13 22:39:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-12-13 22:39:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:39:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:39:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:39:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:39:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:39:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:39:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:39:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:39:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:39:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:39:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:39:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:39:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:39:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:39:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:39:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:39:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:39:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:39:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:39:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:39:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:39:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:39:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2022-12-13 22:39:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:39:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1517 trivial. 0 not checked. [2022-12-13 22:39:56,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:39:56,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028936841] [2022-12-13 22:39:56,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028936841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:39:56,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:39:56,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:39:56,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272308937] [2022-12-13 22:39:56,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:39:56,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:39:56,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:39:56,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:39:56,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:39:56,691 INFO L87 Difference]: Start difference. First operand 38090 states and 52650 transitions. Second operand has 9 states, 9 states have (on average 21.0) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (49), 7 states have call predecessors, (49), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-13 22:40:02,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:40:04,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 22:40:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:40:08,228 INFO L93 Difference]: Finished difference Result 78461 states and 108292 transitions. [2022-12-13 22:40:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 22:40:08,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.0) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (49), 7 states have call predecessors, (49), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 586 [2022-12-13 22:40:08,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:40:08,319 INFO L225 Difference]: With dead ends: 78461 [2022-12-13 22:40:08,320 INFO L226 Difference]: Without dead ends: 40466 [2022-12-13 22:40:08,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-12-13 22:40:08,374 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 500 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 1849 mSolverCounterSat, 273 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1849 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:40:08,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 2435 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1849 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-12-13 22:40:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40466 states. [2022-12-13 22:40:12,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40466 to 38018. [2022-12-13 22:40:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38018 states, 30274 states have (on average 1.3492105437008655) internal successors, (40846), 30642 states have internal predecessors, (40846), 5711 states have call successors, (5711), 1871 states have call predecessors, (5711), 2032 states have return successors, (6015), 5801 states have call predecessors, (6015), 5671 states have call successors, (6015) [2022-12-13 22:40:12,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38018 states to 38018 states and 52572 transitions. [2022-12-13 22:40:12,247 INFO L78 Accepts]: Start accepts. Automaton has 38018 states and 52572 transitions. Word has length 586 [2022-12-13 22:40:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:40:12,247 INFO L495 AbstractCegarLoop]: Abstraction has 38018 states and 52572 transitions. [2022-12-13 22:40:12,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.0) internal successors, (189), 4 states have internal predecessors, (189), 2 states have call successors, (49), 7 states have call predecessors, (49), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-13 22:40:12,247 INFO L276 IsEmpty]: Start isEmpty. Operand 38018 states and 52572 transitions. [2022-12-13 22:40:12,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2022-12-13 22:40:12,263 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:40:12,263 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:40:12,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-13 22:40:12,264 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:40:12,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:40:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash 400246517, now seen corresponding path program 1 times [2022-12-13 22:40:12,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:40:12,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918277195] [2022-12-13 22:40:12,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:40:12,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:40:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:40:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 22:40:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 22:40:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:40:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 22:40:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 22:40:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:40:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-12-13 22:40:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 22:40:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 22:40:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 22:40:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-12-13 22:40:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:40:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:40:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-12-13 22:40:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-12-13 22:40:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-12-13 22:40:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:40:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:40:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:40:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:40:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:40:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:40:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:40:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:40:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:40:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:40:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:40:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:40:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:40:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:40:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:40:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:40:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:40:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:40:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:40:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:40:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2022-12-13 22:40:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 33 proven. 22 refuted. 0 times theorem prover too weak. 1627 trivial. 0 not checked. [2022-12-13 22:40:13,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:40:13,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918277195] [2022-12-13 22:40:13,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918277195] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:40:13,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128038090] [2022-12-13 22:40:13,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:40:13,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:40:13,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:40:13,812 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:40:13,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 22:40:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:16,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 16673 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 22:40:16,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:40:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2022-12-13 22:40:16,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:40:16,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128038090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:40:16,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:40:16,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 11 [2022-12-13 22:40:16,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882509545] [2022-12-13 22:40:16,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:40:16,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:40:16,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:40:16,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:40:16,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:40:16,111 INFO L87 Difference]: Start difference. First operand 38018 states and 52572 transitions. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 4 states have internal predecessors, (242), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-13 22:40:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:40:20,917 INFO L93 Difference]: Finished difference Result 73669 states and 103014 transitions. [2022-12-13 22:40:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:40:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 4 states have internal predecessors, (242), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) Word has length 659 [2022-12-13 22:40:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:40:21,004 INFO L225 Difference]: With dead ends: 73669 [2022-12-13 22:40:21,004 INFO L226 Difference]: Without dead ends: 38711 [2022-12-13 22:40:21,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 834 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:40:21,057 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 5 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2941 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:40:21,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2941 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:40:21,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38711 states. [2022-12-13 22:40:24,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38711 to 38414. [2022-12-13 22:40:25,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38414 states, 30571 states have (on average 1.3458179320270844) internal successors, (41143), 30939 states have internal predecessors, (41143), 5711 states have call successors, (5711), 1871 states have call predecessors, (5711), 2131 states have return successors, (6807), 5900 states have call predecessors, (6807), 5671 states have call successors, (6807) [2022-12-13 22:40:25,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38414 states to 38414 states and 53661 transitions. [2022-12-13 22:40:25,096 INFO L78 Accepts]: Start accepts. Automaton has 38414 states and 53661 transitions. Word has length 659 [2022-12-13 22:40:25,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:40:25,096 INFO L495 AbstractCegarLoop]: Abstraction has 38414 states and 53661 transitions. [2022-12-13 22:40:25,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 4 states have internal predecessors, (242), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-13 22:40:25,096 INFO L276 IsEmpty]: Start isEmpty. Operand 38414 states and 53661 transitions. [2022-12-13 22:40:25,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2022-12-13 22:40:25,112 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:40:25,113 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:40:25,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 22:40:25,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-12-13 22:40:25,315 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:40:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:40:25,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1383116080, now seen corresponding path program 1 times [2022-12-13 22:40:25,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:40:25,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695692475] [2022-12-13 22:40:25,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:40:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:40:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 22:40:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 22:40:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 22:40:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:40:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 22:40:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-12-13 22:40:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:40:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-12-13 22:40:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 22:40:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 22:40:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:40:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-12-13 22:40:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 22:40:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 22:40:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-12-13 22:40:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 22:40:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 22:40:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-12-13 22:40:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-12-13 22:40:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:40:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:40:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 22:40:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 22:40:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 22:40:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 22:40:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 22:40:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 22:40:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 22:40:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 22:40:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 22:40:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 22:40:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 22:40:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 22:40:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 22:40:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 22:40:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 22:40:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-12-13 22:40:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 22:40:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:40:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 22:40:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-12-13 22:40:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 650 [2022-12-13 22:40:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:26,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1681 backedges. 33 proven. 54 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2022-12-13 22:40:26,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:40:26,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695692475] [2022-12-13 22:40:26,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695692475] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:40:26,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543743969] [2022-12-13 22:40:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:40:26,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:40:26,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:40:26,759 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:40:26,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3237f8-5491-429a-a756-dec170b57810/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 22:40:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:40:29,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 16674 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 22:40:29,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:40:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1681 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 1321 trivial. 0 not checked. [2022-12-13 22:40:29,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:40:29,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543743969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:40:29,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 22:40:29,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 10 [2022-12-13 22:40:29,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851654874] [2022-12-13 22:40:29,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:40:29,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:40:29,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:40:29,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:40:29,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:40:29,133 INFO L87 Difference]: Start difference. First operand 38414 states and 53661 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54)