./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/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_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/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_771d0b5e-6da4-4307-8c78-735e1af29818/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 34ead930b8137fdc7abb50622ed73bdb27f2c7ae71d0ef3b9d44cfc9bee95799 --- 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 13:01:19,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:01:19,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:01:19,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:01:19,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:01:19,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:01:19,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:01:19,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:01:19,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:01:19,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:01:19,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:01:19,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:01:19,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:01:19,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:01:19,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:01:19,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:01:19,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:01:19,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:01:19,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:01:19,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:01:19,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:01:19,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:01:19,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:01:19,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:01:19,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:01:19,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:01:19,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:01:19,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:01:19,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:01:19,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:01:19,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:01:19,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:01:19,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:01:19,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:01:19,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:01:19,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:01:19,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:01:19,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:01:19,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:01:19,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:01:19,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:01:19,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 13:01:19,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:01:19,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:01:19,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:01:19,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:01:19,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:01:19,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:01:19,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:01:19,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:01:19,343 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:01:19,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:01:19,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:01:19,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:01:19,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:01:19,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:01:19,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:01:19,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:01:19,344 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:01:19,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:01:19,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:01:19,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:01:19,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:01:19,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:01:19,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:01:19,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:01:19,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:01:19,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:01:19,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:01:19,346 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:01:19,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:01:19,346 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:01:19,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:01:19,346 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:01:19,347 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_771d0b5e-6da4-4307-8c78-735e1af29818/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34ead930b8137fdc7abb50622ed73bdb27f2c7ae71d0ef3b9d44cfc9bee95799 [2022-12-13 13:01:19,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:01:19,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:01:19,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:01:19,563 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:01:19,564 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:01:19,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2022-12-13 13:01:22,204 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:01:22,476 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:01:22,476 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2022-12-13 13:01:22,494 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/data/7f02aeecc/e9beb3a355544f3bbfcffb0b420b10cc/FLAG5d166b0cb [2022-12-13 13:01:22,504 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/data/7f02aeecc/e9beb3a355544f3bbfcffb0b420b10cc [2022-12-13 13:01:22,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:01:22,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:01:22,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:01:22,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:01:22,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:01:22,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:01:22" (1/1) ... [2022-12-13 13:01:22,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d493689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:22, skipping insertion in model container [2022-12-13 13:01:22,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:01:22" (1/1) ... [2022-12-13 13:01:22,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:01:22,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:01:22,865 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 13:01:22,869 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 13:01:22,875 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-13 13:01:22,899 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 13:01:22,964 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 13:01:22,988 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-13 13:01:22,989 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 13:01:22,990 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-13 13:01:22,993 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-13 13:01:22,994 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 13:01:22,994 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-13 13:01:23,084 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-13 13:01:23,091 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,091 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 13:01:23,093 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,096 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 13:01:23,096 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 13:01:23,106 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,118 WARN L623 FunctionHandler]: Unknown extern function down [2022-12-13 13:01:23,118 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-13 13:01:23,119 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,122 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-13 13:01:23,123 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-13 13:01:23,156 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-13 13:01:23,156 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-13 13:01:23,157 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-13 13:01:23,157 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 13:01:23,158 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 13:01:23,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,162 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 13:01:23,163 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,163 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 13:01:23,177 WARN L623 FunctionHandler]: Unknown extern function dma_pool_create [2022-12-13 13:01:23,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,179 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 13:01:23,181 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,182 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-13 13:01:23,182 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,183 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,183 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-13 13:01:23,183 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,186 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 13:01:23,187 WARN L623 FunctionHandler]: Unknown extern function dma_pool_create [2022-12-13 13:01:23,189 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,190 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,191 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-13 13:01:23,192 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,192 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,192 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-13 13:01:23,193 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-13 13:01:23,194 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-13 13:01:23,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,198 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 13:01:23,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,213 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 13:01:23,215 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-13 13:01:23,216 WARN L623 FunctionHandler]: Unknown extern function ldv_release_2 [2022-12-13 13:01:23,217 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-13 13:01:23,218 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-13 13:01:23,219 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 13:01:23,220 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 13:01:23,223 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_771d0b5e-6da4-4307-8c78-735e1af29818/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i[145794,145807] [2022-12-13 13:01:23,242 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-13 13:01:23,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:01:23,278 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:01:23,339 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 13:01:23,339 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 13:01:23,339 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-13 13:01:23,340 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 13:01:23,343 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 13:01:23,344 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-13 13:01:23,345 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 13:01:23,345 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-13 13:01:23,345 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-13 13:01:23,346 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 13:01:23,346 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-13 13:01:23,349 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-13 13:01:23,350 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,351 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 13:01:23,352 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,354 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 13:01:23,354 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 13:01:23,360 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,366 WARN L623 FunctionHandler]: Unknown extern function down [2022-12-13 13:01:23,366 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-13 13:01:23,367 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,368 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-13 13:01:23,368 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-13 13:01:23,370 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-13 13:01:23,370 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-13 13:01:23,370 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-13 13:01:23,371 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 13:01:23,371 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 13:01:23,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,373 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 13:01:23,374 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,374 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 13:01:23,378 WARN L623 FunctionHandler]: Unknown extern function dma_pool_create [2022-12-13 13:01:23,379 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,380 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 13:01:23,380 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,381 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-13 13:01:23,382 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,382 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,382 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-13 13:01:23,382 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,384 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 13:01:23,384 WARN L623 FunctionHandler]: Unknown extern function dma_pool_create [2022-12-13 13:01:23,386 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,386 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,387 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-13 13:01:23,387 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,387 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 13:01:23,388 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-13 13:01:23,388 WARN L623 FunctionHandler]: Unknown extern function dma_pool_free [2022-12-13 13:01:23,388 WARN L623 FunctionHandler]: Unknown extern function dma_pool_destroy [2022-12-13 13:01:23,389 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,389 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,390 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 13:01:23,390 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 13:01:23,392 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 13:01:23,393 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-13 13:01:23,394 WARN L623 FunctionHandler]: Unknown extern function ldv_release_2 [2022-12-13 13:01:23,394 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-13 13:01:23,395 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-13 13:01:23,396 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 13:01:23,396 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 13:01:23,396 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_771d0b5e-6da4-4307-8c78-735e1af29818/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i[145794,145807] [2022-12-13 13:01:23,398 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-13 13:01:23,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:01:23,423 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:01:23,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23 WrapperNode [2022-12-13 13:01:23,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:01:23,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:01:23,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:01:23,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:01:23,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,491 INFO L138 Inliner]: procedures = 138, calls = 851, calls flagged for inlining = 61, calls inlined = 52, statements flattened = 1741 [2022-12-13 13:01:23,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:01:23,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:01:23,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:01:23,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:01:23,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,584 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:01:23,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:01:23,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:01:23,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:01:23,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (1/1) ... [2022-12-13 13:01:23,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:01:23,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:01:23,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:01:23,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:01:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 13:01:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 13:01:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 13:01:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-13 13:01:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-13 13:01:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:01:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-13 13:01:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-13 13:01:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-12-13 13:01:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-12-13 13:01:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 13:01:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 13:01:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_dealloc_kioc [2022-12-13 13:01:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_dealloc_kioc [2022-12-13 13:01:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-13 13:01:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-13 13:01:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_attach_buf [2022-12-13 13:01:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_attach_buf [2022-12-13 13:01:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-12-13 13:01:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-12-13 13:01:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:01:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-13 13:01:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-13 13:01:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-13 13:01:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-13 13:01:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 13:01:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 13:01:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_ioctl [2022-12-13 13:01:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_ioctl [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-13 13:01:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 13:01:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-13 13:01:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-12-13 13:01:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-12-13 13:01:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:01:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-13 13:01:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-12-13 13:01:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-12-13 13:01:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-13 13:01:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-13 13:01:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-12-13 13:01:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-12-13 13:01:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:01:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 13:01:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:01:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:01:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-12-13 13:01:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-12-13 13:01:23,904 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:01:23,906 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:01:24,076 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-13 13:01:25,284 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:01:25,294 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:01:25,294 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:01:25,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:01:25 BoogieIcfgContainer [2022-12-13 13:01:25,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:01:25,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:01:25,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:01:25,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:01:25,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:01:22" (1/3) ... [2022-12-13 13:01:25,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdea5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:01:25, skipping insertion in model container [2022-12-13 13:01:25,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:01:23" (2/3) ... [2022-12-13 13:01:25,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdea5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:01:25, skipping insertion in model container [2022-12-13 13:01:25,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:01:25" (3/3) ... [2022-12-13 13:01:25,305 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2022-12-13 13:01:25,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:01:25,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:01:25,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:01:25,388 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;@79ccca0f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:01:25,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:01:25,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 403 states, 310 states have (on average 1.403225806451613) internal successors, (435), 318 states have internal predecessors, (435), 67 states have call successors, (67), 25 states have call predecessors, (67), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-13 13:01:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-13 13:01:25,415 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:25,415 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:01:25,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:25,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:25,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1253471979, now seen corresponding path program 1 times [2022-12-13 13:01:25,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:25,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817180225] [2022-12-13 13:01:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:25,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:01:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 13:01:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:25,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:26,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:26,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 13:01:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:26,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 13:01:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:26,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 13:01:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:26,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 13:01:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:26,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:26,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:26,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-12-13 13:01:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-13 13:01:26,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:26,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817180225] [2022-12-13 13:01:26,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817180225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:26,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:26,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:01:26,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631371735] [2022-12-13 13:01:26,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:26,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:01:26,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:01:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:01:26,099 INFO L87 Difference]: Start difference. First operand has 403 states, 310 states have (on average 1.403225806451613) internal successors, (435), 318 states have internal predecessors, (435), 67 states have call successors, (67), 25 states have call predecessors, (67), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (19), 4 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 13:01:27,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:27,186 INFO L93 Difference]: Finished difference Result 815 states and 1172 transitions. [2022-12-13 13:01:27,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:01:27,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (19), 4 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 174 [2022-12-13 13:01:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:27,197 INFO L225 Difference]: With dead ends: 815 [2022-12-13 13:01:27,198 INFO L226 Difference]: Without dead ends: 416 [2022-12-13 13:01:27,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 13:01:27,205 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 218 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:27,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1023 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 13:01:27,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-12-13 13:01:27,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 387. [2022-12-13 13:01:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 299 states have (on average 1.3846153846153846) internal successors, (414), 302 states have internal predecessors, (414), 64 states have call successors, (64), 24 states have call predecessors, (64), 23 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-13 13:01:27,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 541 transitions. [2022-12-13 13:01:27,264 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 541 transitions. Word has length 174 [2022-12-13 13:01:27,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:27,264 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 541 transitions. [2022-12-13 13:01:27,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (19), 4 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 13:01:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 541 transitions. [2022-12-13 13:01:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 13:01:27,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:27,268 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:01:27,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:01:27,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -26593390, now seen corresponding path program 1 times [2022-12-13 13:01:27,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:27,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521892219] [2022-12-13 13:01:27,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:27,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 13:01:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 13:01:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 13:01:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 13:01:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 13:01:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 13:01:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 13:01:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-12-13 13:01:27,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:27,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521892219] [2022-12-13 13:01:27,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521892219] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:27,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:27,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:01:27,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352045554] [2022-12-13 13:01:27,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:27,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:01:27,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:27,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:01:27,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:01:27,624 INFO L87 Difference]: Start difference. First operand 387 states and 541 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (19), 4 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 13:01:28,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:28,744 INFO L93 Difference]: Finished difference Result 818 states and 1156 transitions. [2022-12-13 13:01:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:01:28,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (19), 4 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 175 [2022-12-13 13:01:28,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:28,749 INFO L225 Difference]: With dead ends: 818 [2022-12-13 13:01:28,749 INFO L226 Difference]: Without dead ends: 449 [2022-12-13 13:01:28,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:01:28,751 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 283 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:28,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1341 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 13:01:28,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-12-13 13:01:28,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 414. [2022-12-13 13:01:28,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 323 states have (on average 1.3869969040247678) internal successors, (448), 326 states have internal predecessors, (448), 65 states have call successors, (65), 26 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-13 13:01:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 577 transitions. [2022-12-13 13:01:28,773 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 577 transitions. Word has length 175 [2022-12-13 13:01:28,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:28,774 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 577 transitions. [2022-12-13 13:01:28,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (19), 4 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 13:01:28,774 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 577 transitions. [2022-12-13 13:01:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-12-13 13:01:28,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:28,777 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:28,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:01:28,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:28,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1359871746, now seen corresponding path program 1 times [2022-12-13 13:01:28,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:28,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900019065] [2022-12-13 13:01:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:28,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 13:01:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 13:01:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-12-13 13:01:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-12-13 13:01:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-12-13 13:01:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-12-13 13:01:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 13:01:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-12-13 13:01:29,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:29,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900019065] [2022-12-13 13:01:29,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900019065] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:29,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:29,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:01:29,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211335292] [2022-12-13 13:01:29,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:29,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:01:29,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:29,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:01:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:01:29,528 INFO L87 Difference]: Start difference. First operand 414 states and 577 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 13:01:30,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:30,857 INFO L93 Difference]: Finished difference Result 844 states and 1190 transitions. [2022-12-13 13:01:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:01:30,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 225 [2022-12-13 13:01:30,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:30,862 INFO L225 Difference]: With dead ends: 844 [2022-12-13 13:01:30,863 INFO L226 Difference]: Without dead ends: 446 [2022-12-13 13:01:30,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:01:30,865 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 361 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:30,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 2099 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 13:01:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-12-13 13:01:30,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 412. [2022-12-13 13:01:30,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 321 states have (on average 1.3800623052959502) internal successors, (443), 324 states have internal predecessors, (443), 65 states have call successors, (65), 26 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-13 13:01:30,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 572 transitions. [2022-12-13 13:01:30,883 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 572 transitions. Word has length 225 [2022-12-13 13:01:30,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:30,884 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 572 transitions. [2022-12-13 13:01:30,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 13:01:30,884 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 572 transitions. [2022-12-13 13:01:30,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-13 13:01:30,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:30,886 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:30,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:01:30,887 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:30,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:30,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1189633945, now seen corresponding path program 1 times [2022-12-13 13:01:30,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:30,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7801664] [2022-12-13 13:01:30,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:30,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 13:01:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 13:01:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 13:01:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-12-13 13:01:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 13:01:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-12-13 13:01:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-12-13 13:01:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:31,259 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-12-13 13:01:31,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:31,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7801664] [2022-12-13 13:01:31,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7801664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:31,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:31,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:01:31,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550988778] [2022-12-13 13:01:31,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:31,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:01:31,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:31,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:01:31,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:01:31,262 INFO L87 Difference]: Start difference. First operand 412 states and 572 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-13 13:01:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:33,260 INFO L93 Difference]: Finished difference Result 881 states and 1239 transitions. [2022-12-13 13:01:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:01:33,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 229 [2022-12-13 13:01:33,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:33,264 INFO L225 Difference]: With dead ends: 881 [2022-12-13 13:01:33,264 INFO L226 Difference]: Without dead ends: 491 [2022-12-13 13:01:33,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-12-13 13:01:33,266 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 360 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:33,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1877 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 13:01:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-12-13 13:01:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 454. [2022-12-13 13:01:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 359 states have (on average 1.3788300835654597) internal successors, (495), 362 states have internal predecessors, (495), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-13 13:01:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 626 transitions. [2022-12-13 13:01:33,291 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 626 transitions. Word has length 229 [2022-12-13 13:01:33,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:33,292 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 626 transitions. [2022-12-13 13:01:33,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-13 13:01:33,292 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 626 transitions. [2022-12-13 13:01:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-12-13 13:01:33,294 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:33,295 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:33,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:01:33,295 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:33,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1373571759, now seen corresponding path program 1 times [2022-12-13 13:01:33,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:33,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694083717] [2022-12-13 13:01:33,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:33,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 13:01:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-12-13 13:01:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-12-13 13:01:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-12-13 13:01:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-12-13 13:01:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 13:01:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-12-13 13:01:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-12-13 13:01:33,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:33,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694083717] [2022-12-13 13:01:33,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694083717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:33,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:33,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:01:33,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176824251] [2022-12-13 13:01:33,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:33,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:01:33,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:01:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:01:33,581 INFO L87 Difference]: Start difference. First operand 454 states and 626 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 13:01:35,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:35,592 INFO L93 Difference]: Finished difference Result 1033 states and 1452 transitions. [2022-12-13 13:01:35,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:01:35,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 243 [2022-12-13 13:01:35,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:35,595 INFO L225 Difference]: With dead ends: 1033 [2022-12-13 13:01:35,595 INFO L226 Difference]: Without dead ends: 601 [2022-12-13 13:01:35,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:01:35,597 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 360 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:35,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 2126 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 13:01:35,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-12-13 13:01:35,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 455. [2022-12-13 13:01:35,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 360 states have (on average 1.3777777777777778) internal successors, (496), 363 states have internal predecessors, (496), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-13 13:01:35,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 627 transitions. [2022-12-13 13:01:35,617 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 627 transitions. Word has length 243 [2022-12-13 13:01:35,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:35,618 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 627 transitions. [2022-12-13 13:01:35,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 13:01:35,618 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 627 transitions. [2022-12-13 13:01:35,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-12-13 13:01:35,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:35,620 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:35,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:01:35,620 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:35,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1644980262, now seen corresponding path program 1 times [2022-12-13 13:01:35,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:35,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280187619] [2022-12-13 13:01:35,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:35,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 13:01:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-12-13 13:01:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-12-13 13:01:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-12-13 13:01:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 13:01:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-12-13 13:01:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-12-13 13:01:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-12-13 13:01:36,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:36,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280187619] [2022-12-13 13:01:36,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280187619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:36,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:36,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:01:36,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958056054] [2022-12-13 13:01:36,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:36,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:01:36,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:36,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:01:36,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:01:36,188 INFO L87 Difference]: Start difference. First operand 455 states and 627 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 13:01:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:38,309 INFO L93 Difference]: Finished difference Result 926 states and 1293 transitions. [2022-12-13 13:01:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:01:38,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 247 [2022-12-13 13:01:38,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:38,311 INFO L225 Difference]: With dead ends: 926 [2022-12-13 13:01:38,311 INFO L226 Difference]: Without dead ends: 493 [2022-12-13 13:01:38,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-12-13 13:01:38,313 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 289 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:38,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 2176 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 13:01:38,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-12-13 13:01:38,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 457. [2022-12-13 13:01:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 362 states have (on average 1.3756906077348066) internal successors, (498), 365 states have internal predecessors, (498), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-13 13:01:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 629 transitions. [2022-12-13 13:01:38,326 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 629 transitions. Word has length 247 [2022-12-13 13:01:38,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:38,326 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 629 transitions. [2022-12-13 13:01:38,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 13:01:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 629 transitions. [2022-12-13 13:01:38,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-12-13 13:01:38,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:38,328 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:38,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:01:38,328 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:38,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:38,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1720055588, now seen corresponding path program 1 times [2022-12-13 13:01:38,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:38,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571818490] [2022-12-13 13:01:38,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:38,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 13:01:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 13:01:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-12-13 13:01:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-12-13 13:01:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 13:01:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-12-13 13:01:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-12-13 13:01:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-12-13 13:01:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-12-13 13:01:38,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:38,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571818490] [2022-12-13 13:01:38,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571818490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:38,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:38,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:01:38,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438904619] [2022-12-13 13:01:38,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:38,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:01:38,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:38,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:01:38,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:01:38,651 INFO L87 Difference]: Start difference. First operand 457 states and 629 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 13:01:39,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:39,656 INFO L93 Difference]: Finished difference Result 927 states and 1293 transitions. [2022-12-13 13:01:39,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:01:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 266 [2022-12-13 13:01:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:39,659 INFO L225 Difference]: With dead ends: 927 [2022-12-13 13:01:39,659 INFO L226 Difference]: Without dead ends: 492 [2022-12-13 13:01:39,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:01:39,660 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 354 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:39,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1322 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 13:01:39,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-12-13 13:01:39,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 458. [2022-12-13 13:01:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 363 states have (on average 1.3746556473829201) internal successors, (499), 366 states have internal predecessors, (499), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-13 13:01:39,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 630 transitions. [2022-12-13 13:01:39,673 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 630 transitions. Word has length 266 [2022-12-13 13:01:39,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:39,673 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 630 transitions. [2022-12-13 13:01:39,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 13:01:39,673 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 630 transitions. [2022-12-13 13:01:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-12-13 13:01:39,675 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:39,675 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:39,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:01:39,675 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:39,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:39,676 INFO L85 PathProgramCache]: Analyzing trace with hash -519884651, now seen corresponding path program 1 times [2022-12-13 13:01:39,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:39,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086225879] [2022-12-13 13:01:39,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:39,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 13:01:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 13:01:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 13:01:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 13:01:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 13:01:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 13:01:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-12-13 13:01:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-12-13 13:01:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:39,978 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-12-13 13:01:39,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:39,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086225879] [2022-12-13 13:01:39,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086225879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:39,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:39,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:01:39,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341898031] [2022-12-13 13:01:39,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:39,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:01:39,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:39,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:01:39,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:01:39,980 INFO L87 Difference]: Start difference. First operand 458 states and 630 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 13:01:41,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:41,022 INFO L93 Difference]: Finished difference Result 942 states and 1319 transitions. [2022-12-13 13:01:41,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:01:41,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 262 [2022-12-13 13:01:41,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:41,025 INFO L225 Difference]: With dead ends: 942 [2022-12-13 13:01:41,025 INFO L226 Difference]: Without dead ends: 506 [2022-12-13 13:01:41,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:01:41,026 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 372 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:41,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1334 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 13:01:41,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-12-13 13:01:41,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 459. [2022-12-13 13:01:41,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 364 states have (on average 1.3736263736263736) internal successors, (500), 367 states have internal predecessors, (500), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-13 13:01:41,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 631 transitions. [2022-12-13 13:01:41,038 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 631 transitions. Word has length 262 [2022-12-13 13:01:41,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:41,039 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 631 transitions. [2022-12-13 13:01:41,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 13:01:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 631 transitions. [2022-12-13 13:01:41,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-12-13 13:01:41,040 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:41,040 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:41,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:01:41,041 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:41,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:41,041 INFO L85 PathProgramCache]: Analyzing trace with hash -681852628, now seen corresponding path program 1 times [2022-12-13 13:01:41,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:41,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068379539] [2022-12-13 13:01:41,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:41,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 13:01:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 13:01:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 13:01:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 13:01:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 13:01:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 13:01:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-12-13 13:01:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-12-13 13:01:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-12-13 13:01:41,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:41,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068379539] [2022-12-13 13:01:41,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068379539] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:01:41,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519258000] [2022-12-13 13:01:41,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:41,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:01:41,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:01:41,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:01:41,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:01:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:41,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 2522 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:01:41,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-12-13 13:01:41,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:01:41,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519258000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:41,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:01:41,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-12-13 13:01:41,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868278011] [2022-12-13 13:01:41,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:41,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:01:41,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:41,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:01:41,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:01:41,895 INFO L87 Difference]: Start difference. First operand 459 states and 631 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 13:01:41,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:41,918 INFO L93 Difference]: Finished difference Result 904 states and 1254 transitions. [2022-12-13 13:01:41,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:01:41,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 266 [2022-12-13 13:01:41,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:41,921 INFO L225 Difference]: With dead ends: 904 [2022-12-13 13:01:41,921 INFO L226 Difference]: Without dead ends: 467 [2022-12-13 13:01:41,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:01:41,923 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 3 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:41,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1064 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:01:41,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-12-13 13:01:41,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 465. [2022-12-13 13:01:41,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 370 states have (on average 1.372972972972973) internal successors, (508), 373 states have internal predecessors, (508), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-13 13:01:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 639 transitions. [2022-12-13 13:01:41,935 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 639 transitions. Word has length 266 [2022-12-13 13:01:41,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:41,935 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 639 transitions. [2022-12-13 13:01:41,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 13:01:41,935 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 639 transitions. [2022-12-13 13:01:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-12-13 13:01:41,937 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:41,937 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-12-13 13:01:41,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:01:42,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:01:42,138 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:42,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:42,139 INFO L85 PathProgramCache]: Analyzing trace with hash 271552093, now seen corresponding path program 1 times [2022-12-13 13:01:42,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:42,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065395447] [2022-12-13 13:01:42,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:42,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 13:01:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 13:01:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 13:01:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 13:01:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 13:01:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 13:01:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-12-13 13:01:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-12-13 13:01:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-12-13 13:01:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-12-13 13:01:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-12-13 13:01:42,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:42,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065395447] [2022-12-13 13:01:42,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065395447] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:01:42,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060932522] [2022-12-13 13:01:42,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:42,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:01:42,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:01:42,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:01:42,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:01:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:43,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 2584 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:01:43,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:43,107 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-12-13 13:01:43,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:01:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-12-13 13:01:43,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060932522] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:01:43,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:01:43,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-12-13 13:01:43,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055279833] [2022-12-13 13:01:43,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:01:43,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 13:01:43,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:43,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 13:01:43,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:01:43,230 INFO L87 Difference]: Start difference. First operand 465 states and 639 transitions. Second operand has 11 states, 11 states have (on average 13.909090909090908) internal successors, (153), 7 states have internal predecessors, (153), 5 states have call successors, (45), 6 states have call predecessors, (45), 2 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-12-13 13:01:45,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:01:45,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:45,996 INFO L93 Difference]: Finished difference Result 990 states and 1392 transitions. [2022-12-13 13:01:45,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 13:01:45,997 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.909090909090908) internal successors, (153), 7 states have internal predecessors, (153), 5 states have call successors, (45), 6 states have call predecessors, (45), 2 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 280 [2022-12-13 13:01:45,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:46,000 INFO L225 Difference]: With dead ends: 990 [2022-12-13 13:01:46,001 INFO L226 Difference]: Without dead ends: 547 [2022-12-13 13:01:46,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-12-13 13:01:46,002 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 359 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:46,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1960 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-13 13:01:46,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-12-13 13:01:46,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 504. [2022-12-13 13:01:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 403 states have (on average 1.3672456575682381) internal successors, (551), 408 states have internal predecessors, (551), 72 states have call successors, (72), 29 states have call predecessors, (72), 28 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-13 13:01:46,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 694 transitions. [2022-12-13 13:01:46,015 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 694 transitions. Word has length 280 [2022-12-13 13:01:46,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:46,016 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 694 transitions. [2022-12-13 13:01:46,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.909090909090908) internal successors, (153), 7 states have internal predecessors, (153), 5 states have call successors, (45), 6 states have call predecessors, (45), 2 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-12-13 13:01:46,016 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 694 transitions. [2022-12-13 13:01:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-12-13 13:01:46,018 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:46,018 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:01:46,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:01:46,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 13:01:46,219 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:46,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:46,219 INFO L85 PathProgramCache]: Analyzing trace with hash 774960822, now seen corresponding path program 1 times [2022-12-13 13:01:46,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:46,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315495611] [2022-12-13 13:01:46,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:46,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 13:01:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 13:01:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 13:01:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 13:01:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 13:01:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 13:01:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-12-13 13:01:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-12-13 13:01:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-12-13 13:01:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-12-13 13:01:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:46,743 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-12-13 13:01:46,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:46,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315495611] [2022-12-13 13:01:46,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315495611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:46,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:46,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:01:46,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249000460] [2022-12-13 13:01:46,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:46,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:01:46,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:46,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:01:46,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:01:46,745 INFO L87 Difference]: Start difference. First operand 504 states and 694 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 13:01:47,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:47,802 INFO L93 Difference]: Finished difference Result 1019 states and 1419 transitions. [2022-12-13 13:01:47,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:01:47,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 295 [2022-12-13 13:01:47,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:47,807 INFO L225 Difference]: With dead ends: 1019 [2022-12-13 13:01:47,807 INFO L226 Difference]: Without dead ends: 537 [2022-12-13 13:01:47,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-12-13 13:01:47,810 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 357 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:47,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1714 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 13:01:47,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-12-13 13:01:47,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 504. [2022-12-13 13:01:47,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 403 states have (on average 1.3672456575682381) internal successors, (551), 408 states have internal predecessors, (551), 72 states have call successors, (72), 29 states have call predecessors, (72), 28 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-13 13:01:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 694 transitions. [2022-12-13 13:01:47,824 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 694 transitions. Word has length 295 [2022-12-13 13:01:47,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:47,824 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 694 transitions. [2022-12-13 13:01:47,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 13:01:47,824 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 694 transitions. [2022-12-13 13:01:47,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-12-13 13:01:47,826 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:47,826 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 13:01:47,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:01:47,826 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:47,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:47,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2068006878, now seen corresponding path program 1 times [2022-12-13 13:01:47,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:47,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712545285] [2022-12-13 13:01:47,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:47,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 13:01:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:48,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 13:01:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-12-13 13:01:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 13:01:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-12-13 13:01:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 13:01:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 13:01:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-12-13 13:01:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-12-13 13:01:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-12-13 13:01:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,265 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-12-13 13:01:48,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:48,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712545285] [2022-12-13 13:01:48,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712545285] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:01:48,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443174294] [2022-12-13 13:01:48,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:48,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:01:48,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:01:48,266 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:01:48,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:01:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:48,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 2604 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:01:48,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:48,814 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-12-13 13:01:48,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:01:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-12-13 13:01:48,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443174294] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:01:48,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:01:48,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 12 [2022-12-13 13:01:48,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768442486] [2022-12-13 13:01:48,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:01:48,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:01:48,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:48,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:01:48,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:01:48,948 INFO L87 Difference]: Start difference. First operand 504 states and 694 transitions. Second operand has 12 states, 12 states have (on average 12.833333333333334) internal successors, (154), 8 states have internal predecessors, (154), 3 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 13:01:50,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:50,950 INFO L93 Difference]: Finished difference Result 1048 states and 1472 transitions. [2022-12-13 13:01:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 13:01:50,951 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.833333333333334) internal successors, (154), 8 states have internal predecessors, (154), 3 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 293 [2022-12-13 13:01:50,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:50,952 INFO L225 Difference]: With dead ends: 1048 [2022-12-13 13:01:50,953 INFO L226 Difference]: Without dead ends: 566 [2022-12-13 13:01:50,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 650 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-12-13 13:01:50,954 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 366 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:50,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1936 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 13:01:50,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-12-13 13:01:50,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 518. [2022-12-13 13:01:50,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 415 states have (on average 1.3662650602409638) internal successors, (567), 421 states have internal predecessors, (567), 74 states have call successors, (74), 29 states have call predecessors, (74), 28 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-13 13:01:50,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 714 transitions. [2022-12-13 13:01:50,967 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 714 transitions. Word has length 293 [2022-12-13 13:01:50,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:50,967 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 714 transitions. [2022-12-13 13:01:50,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.833333333333334) internal successors, (154), 8 states have internal predecessors, (154), 3 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 13:01:50,967 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 714 transitions. [2022-12-13 13:01:50,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-12-13 13:01:50,969 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:50,969 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:50,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:01:51,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:01:51,170 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:51,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:51,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2009743556, now seen corresponding path program 1 times [2022-12-13 13:01:51,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:51,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990206834] [2022-12-13 13:01:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:51,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 13:01:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 13:01:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-12-13 13:01:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-12-13 13:01:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 13:01:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-12-13 13:01:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-12-13 13:01:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-12-13 13:01:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-12-13 13:01:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-12-13 13:01:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:51,592 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-12-13 13:01:51,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:51,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990206834] [2022-12-13 13:01:51,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990206834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:51,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:51,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:01:51,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18850546] [2022-12-13 13:01:51,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:51,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:01:51,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:51,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:01:51,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:01:51,594 INFO L87 Difference]: Start difference. First operand 518 states and 714 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 13:01:52,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:52,711 INFO L93 Difference]: Finished difference Result 1046 states and 1458 transitions. [2022-12-13 13:01:52,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:01:52,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 301 [2022-12-13 13:01:52,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:52,713 INFO L225 Difference]: With dead ends: 1046 [2022-12-13 13:01:52,713 INFO L226 Difference]: Without dead ends: 550 [2022-12-13 13:01:52,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:01:52,714 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 354 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:52,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1334 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 13:01:52,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-12-13 13:01:52,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 520. [2022-12-13 13:01:52,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 417 states have (on average 1.3645083932853717) internal successors, (569), 423 states have internal predecessors, (569), 74 states have call successors, (74), 29 states have call predecessors, (74), 28 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-13 13:01:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 716 transitions. [2022-12-13 13:01:52,728 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 716 transitions. Word has length 301 [2022-12-13 13:01:52,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:52,728 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 716 transitions. [2022-12-13 13:01:52,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 13:01:52,728 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 716 transitions. [2022-12-13 13:01:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-12-13 13:01:52,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:52,730 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:52,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 13:01:52,730 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:52,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1023940455, now seen corresponding path program 1 times [2022-12-13 13:01:52,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:52,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738622320] [2022-12-13 13:01:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:52,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:01:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 13:01:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:01:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:01:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:01:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:01:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:01:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 13:01:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-12-13 13:01:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-12-13 13:01:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 13:01:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-12-13 13:01:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-12-13 13:01:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-12-13 13:01:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-12-13 13:01:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-12-13 13:01:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-12-13 13:01:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-12-13 13:01:53,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:53,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738622320] [2022-12-13 13:01:53,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738622320] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:01:53,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413895864] [2022-12-13 13:01:53,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:53,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:01:53,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:01:53,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:01:53,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:01:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:53,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 2667 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 13:01:53,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-12-13 13:01:54,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:01:54,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413895864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:54,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:01:54,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-12-13 13:01:54,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887455022] [2022-12-13 13:01:54,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:54,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:01:54,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:54,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:01:54,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:01:54,037 INFO L87 Difference]: Start difference. First operand 520 states and 716 transitions. Second operand has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 13:01:54,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:54,123 INFO L93 Difference]: Finished difference Result 1045 states and 1445 transitions. [2022-12-13 13:01:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:01:54,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 303 [2022-12-13 13:01:54,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:54,125 INFO L225 Difference]: With dead ends: 1045 [2022-12-13 13:01:54,125 INFO L226 Difference]: Without dead ends: 522 [2022-12-13 13:01:54,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:01:54,127 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 6 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:54,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2619 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:01:54,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-12-13 13:01:54,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2022-12-13 13:01:54,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 419 states have (on average 1.3627684964200477) internal successors, (571), 425 states have internal predecessors, (571), 74 states have call successors, (74), 29 states have call predecessors, (74), 28 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-13 13:01:54,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 718 transitions. [2022-12-13 13:01:54,140 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 718 transitions. Word has length 303 [2022-12-13 13:01:54,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:54,140 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 718 transitions. [2022-12-13 13:01:54,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 13:01:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 718 transitions. [2022-12-13 13:01:54,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-12-13 13:01:54,142 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:54,142 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:54,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:01:54,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:01:54,343 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:54,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:54,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1533552905, now seen corresponding path program 1 times [2022-12-13 13:01:54,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:54,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963620483] [2022-12-13 13:01:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:54,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 13:01:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 13:01:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 13:01:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 13:01:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 13:01:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 13:01:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 13:01:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 13:01:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-12-13 13:01:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-12-13 13:01:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-12-13 13:01:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-12-13 13:01:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-12-13 13:01:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-12-13 13:01:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-12-13 13:01:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-12-13 13:01:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-12-13 13:01:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:54,774 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-12-13 13:01:54,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:54,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963620483] [2022-12-13 13:01:54,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963620483] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:01:54,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138568717] [2022-12-13 13:01:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:54,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:01:54,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:01:54,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:01:54,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:01:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:55,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-13 13:01:55,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-12-13 13:01:55,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:01:55,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138568717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:55,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:01:55,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-12-13 13:01:55,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142704969] [2022-12-13 13:01:55,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:55,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:01:55,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:55,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:01:55,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:01:55,582 INFO L87 Difference]: Start difference. First operand 522 states and 718 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-13 13:01:55,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:01:55,630 INFO L93 Difference]: Finished difference Result 1025 states and 1416 transitions. [2022-12-13 13:01:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:01:55,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 308 [2022-12-13 13:01:55,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:01:55,632 INFO L225 Difference]: With dead ends: 1025 [2022-12-13 13:01:55,632 INFO L226 Difference]: Without dead ends: 526 [2022-12-13 13:01:55,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:01:55,633 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 5 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:01:55,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1597 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:01:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-12-13 13:01:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 524. [2022-12-13 13:01:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 421 states have (on average 1.3610451306413303) internal successors, (573), 427 states have internal predecessors, (573), 74 states have call successors, (74), 29 states have call predecessors, (74), 28 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-13 13:01:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 720 transitions. [2022-12-13 13:01:55,646 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 720 transitions. Word has length 308 [2022-12-13 13:01:55,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:01:55,647 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 720 transitions. [2022-12-13 13:01:55,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-13 13:01:55,647 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 720 transitions. [2022-12-13 13:01:55,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-13 13:01:55,648 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:01:55,649 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:55,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 13:01:55,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 13:01:55,849 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:01:55,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:55,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1299035378, now seen corresponding path program 1 times [2022-12-13 13:01:55,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:01:55,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625426090] [2022-12-13 13:01:55,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:55,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:01:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:01:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 13:01:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 13:01:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 13:01:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 13:01:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 13:01:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 13:01:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:01:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 13:01:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 13:01:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-12-13 13:01:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-12-13 13:01:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-12-13 13:01:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 13:01:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-12-13 13:01:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-12-13 13:01:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:01:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:01:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-12-13 13:01:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-12-13 13:01:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-12-13 13:01:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:56,284 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-12-13 13:01:56,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:01:56,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625426090] [2022-12-13 13:01:56,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625426090] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:01:56,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800386934] [2022-12-13 13:01:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:56,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:01:56,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:01:56,285 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:01:56,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 13:01:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:57,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 2756 conjuncts, 137 conjunts are in the unsatisfiable core [2022-12-13 13:01:57,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:57,425 INFO L321 Elim1Store]: treesize reduction 100, result has 17.4 percent of original size [2022-12-13 13:01:57,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 71 treesize of output 79 [2022-12-13 13:01:57,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 13:01:57,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 13:01:57,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:01:58,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 13:01:58,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:01:58,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 13:01:58,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:01:58,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 13:01:58,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:01:58,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 13:01:58,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:01:58,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:01:58,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:01:58,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 13:01:58,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:01:58,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:01:58,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:01:59,013 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 14 treesize of output 16 [2022-12-13 13:01:59,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 13:01:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 8 proven. 57 refuted. 6 times theorem prover too weak. 234 trivial. 0 not checked. [2022-12-13 13:01:59,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:01:59,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800386934] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:01:59,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:01:59,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 26] total 33 [2022-12-13 13:01:59,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899747318] [2022-12-13 13:01:59,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:01:59,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-12-13 13:01:59,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:01:59,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-12-13 13:01:59,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1178, Unknown=89, NotChecked=0, Total=1406 [2022-12-13 13:01:59,868 INFO L87 Difference]: Start difference. First operand 524 states and 720 transitions. Second operand has 33 states, 30 states have (on average 7.866666666666666) internal successors, (236), 28 states have internal predecessors, (236), 14 states have call successors, (52), 9 states have call predecessors, (52), 10 states have return successors, (47), 12 states have call predecessors, (47), 13 states have call successors, (47) [2022-12-13 13:02:10,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:02:10,644 INFO L93 Difference]: Finished difference Result 1354 states and 1885 transitions. [2022-12-13 13:02:10,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 13:02:10,645 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 30 states have (on average 7.866666666666666) internal successors, (236), 28 states have internal predecessors, (236), 14 states have call successors, (52), 9 states have call predecessors, (52), 10 states have return successors, (47), 12 states have call predecessors, (47), 13 states have call successors, (47) Word has length 314 [2022-12-13 13:02:10,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:02:10,647 INFO L225 Difference]: With dead ends: 1354 [2022-12-13 13:02:10,647 INFO L226 Difference]: Without dead ends: 853 [2022-12-13 13:02:10,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 554 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=384, Invalid=3718, Unknown=188, NotChecked=0, Total=4290 [2022-12-13 13:02:10,649 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 879 mSDsluCounter, 8196 mSDsCounter, 0 mSdLazyCounter, 5123 mSolverCounterSat, 324 mSolverCounterUnsat, 741 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 8784 SdHoareTripleChecker+Invalid, 6188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 5123 IncrementalHoareTripleChecker+Invalid, 741 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:02:10,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 8784 Invalid, 6188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 5123 Invalid, 741 Unknown, 0 Unchecked, 9.9s Time] [2022-12-13 13:02:10,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-12-13 13:02:10,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 672. [2022-12-13 13:02:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 550 states have (on average 1.3618181818181818) internal successors, (749), 557 states have internal predecessors, (749), 84 states have call successors, (84), 36 states have call predecessors, (84), 37 states have return successors, (89), 84 states have call predecessors, (89), 83 states have call successors, (89) [2022-12-13 13:02:10,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 922 transitions. [2022-12-13 13:02:10,684 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 922 transitions. Word has length 314 [2022-12-13 13:02:10,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:02:10,684 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 922 transitions. [2022-12-13 13:02:10,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 30 states have (on average 7.866666666666666) internal successors, (236), 28 states have internal predecessors, (236), 14 states have call successors, (52), 9 states have call predecessors, (52), 10 states have return successors, (47), 12 states have call predecessors, (47), 13 states have call successors, (47) [2022-12-13 13:02:10,685 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 922 transitions. [2022-12-13 13:02:10,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-12-13 13:02:10,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:02:10,686 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 13:02:10,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 13:02:10,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 13:02:10,887 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:02:10,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:02:10,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1997444470, now seen corresponding path program 1 times [2022-12-13 13:02:10,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:02:10,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674181829] [2022-12-13 13:02:10,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:02:10,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:02:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:02:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 13:02:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 13:02:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 13:02:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 13:02:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 13:02:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:02:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 13:02:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:02:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 13:02:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 13:02:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:02:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 13:02:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:02:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-12-13 13:02:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:02:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-12-13 13:02:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-12-13 13:02:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-12-13 13:02:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 13:02:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:02:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-12-13 13:02:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-12-13 13:02:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-12-13 13:02:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-12-13 13:02:11,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:02:11,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674181829] [2022-12-13 13:02:11,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674181829] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:02:11,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474816701] [2022-12-13 13:02:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:02:11,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:02:11,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:02:11,326 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:02:11,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 13:02:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:11,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 2766 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-13 13:02:11,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:02:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-12-13 13:02:11,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:02:12,045 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 10 proven. 33 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2022-12-13 13:02:12,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474816701] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:02:12,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:02:12,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 18 [2022-12-13 13:02:12,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311348954] [2022-12-13 13:02:12,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:02:12,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 13:02:12,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:02:12,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 13:02:12,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-12-13 13:02:12,046 INFO L87 Difference]: Start difference. First operand 672 states and 922 transitions. Second operand has 18 states, 16 states have (on average 15.0) internal successors, (240), 14 states have internal predecessors, (240), 4 states have call successors, (66), 6 states have call predecessors, (66), 5 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2022-12-13 13:02:15,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:02:15,091 INFO L93 Difference]: Finished difference Result 1252 states and 1723 transitions. [2022-12-13 13:02:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 13:02:15,092 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 15.0) internal successors, (240), 14 states have internal predecessors, (240), 4 states have call successors, (66), 6 states have call predecessors, (66), 5 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) Word has length 313 [2022-12-13 13:02:15,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:02:15,093 INFO L225 Difference]: With dead ends: 1252 [2022-12-13 13:02:15,093 INFO L226 Difference]: Without dead ends: 572 [2022-12-13 13:02:15,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 686 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=891, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 13:02:15,095 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 297 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:02:15,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 2933 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-13 13:02:15,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-12-13 13:02:15,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 551. [2022-12-13 13:02:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 441 states have (on average 1.346938775510204) internal successors, (594), 447 states have internal predecessors, (594), 77 states have call successors, (77), 33 states have call predecessors, (77), 32 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-13 13:02:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 747 transitions. [2022-12-13 13:02:15,111 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 747 transitions. Word has length 313 [2022-12-13 13:02:15,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:02:15,112 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 747 transitions. [2022-12-13 13:02:15,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 15.0) internal successors, (240), 14 states have internal predecessors, (240), 4 states have call successors, (66), 6 states have call predecessors, (66), 5 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2022-12-13 13:02:15,112 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 747 transitions. [2022-12-13 13:02:15,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-12-13 13:02:15,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:02:15,114 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:02:15,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 13:02:15,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 13:02:15,316 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:02:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:02:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash -352072938, now seen corresponding path program 1 times [2022-12-13 13:02:15,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:02:15,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164123726] [2022-12-13 13:02:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:02:15,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:02:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:02:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 13:02:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 13:02:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 13:02:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 13:02:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 13:02:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:02:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 13:02:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:02:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 13:02:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 13:02:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:02:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 13:02:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:02:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-12-13 13:02:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:02:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-12-13 13:02:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-12-13 13:02:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-12-13 13:02:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 13:02:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:02:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 13:02:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-12-13 13:02:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-12-13 13:02:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-12-13 13:02:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:15,866 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-12-13 13:02:15,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:02:15,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164123726] [2022-12-13 13:02:15,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164123726] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:02:15,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412685649] [2022-12-13 13:02:15,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:02:15,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:02:15,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:02:15,867 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:02:15,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771d0b5e-6da4-4307-8c78-735e1af29818/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 13:02:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:02:17,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 2840 conjuncts, 180 conjunts are in the unsatisfiable core [2022-12-13 13:02:17,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:02:17,347 INFO L321 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2022-12-13 13:02:17,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 24 case distinctions, treesize of input 89 treesize of output 109 [2022-12-13 13:02:26,179 INFO L321 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2022-12-13 13:02:26,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 42 treesize of output 81 [2022-12-13 13:02:26,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:02:26,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:02:26,830 INFO L321 Elim1Store]: treesize reduction 60, result has 47.8 percent of original size [2022-12-13 13:02:26,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 78 [2022-12-13 13:02:28,838 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:02:28,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 192 treesize of output 533 [2022-12-13 13:02:37,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:02:37,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:02:38,129 INFO L321 Elim1Store]: treesize reduction 100, result has 81.9 percent of original size [2022-12-13 13:02:38,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 199 treesize of output 628