./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--scsi_debug.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 949424244b253eebe8c539a6549e978b334eb11066ed24813c344448dac2db32 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:14:26,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:14:26,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:14:26,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:14:26,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:14:26,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:14:26,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:14:26,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:14:26,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:14:26,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:14:26,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:14:26,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:14:26,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:14:26,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:14:26,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:14:26,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:14:26,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:14:26,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:14:26,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:14:26,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:14:26,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:14:26,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:14:26,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:14:26,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:14:26,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:14:26,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:14:26,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:14:26,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:14:26,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:14:26,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:14:26,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:14:26,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:14:26,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:14:26,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:14:26,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:14:26,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:14:26,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:14:26,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:14:26,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:14:26,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:14:26,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:14:26,536 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 08:14:26,555 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:14:26,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:14:26,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:14:26,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:14:26,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:14:26,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:14:26,557 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:14:26,557 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:14:26,557 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:14:26,557 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:14:26,557 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:14:26,557 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:14:26,558 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:14:26,558 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:14:26,558 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:14:26,558 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:14:26,558 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:14:26,558 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:14:26,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:14:26,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:14:26,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:14:26,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:14:26,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:14:26,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:14:26,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:14:26,560 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:14:26,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:14:26,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:14:26,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:14:26,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:14:26,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:14:26,561 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:14:26,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:14:26,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:14:26,562 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:14:26,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:14:26,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:14:26,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:14:26,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 949424244b253eebe8c539a6549e978b334eb11066ed24813c344448dac2db32 [2022-12-14 08:14:26,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:14:26,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:14:26,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:14:26,778 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:14:26,779 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:14:26,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i [2022-12-14 08:14:29,409 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:14:29,758 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:14:29,759 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i [2022-12-14 08:14:29,785 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/data/94db7b2ea/3103c902d6c34a9a869d4f5af724d8c6/FLAG357c503dd [2022-12-14 08:14:29,795 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/data/94db7b2ea/3103c902d6c34a9a869d4f5af724d8c6 [2022-12-14 08:14:29,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:14:29,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:14:29,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:14:29,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:14:29,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:14:29,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:14:29" (1/1) ... [2022-12-14 08:14:29,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240e7303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:29, skipping insertion in model container [2022-12-14 08:14:29,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:14:29" (1/1) ... [2022-12-14 08:14:29,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:14:29,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:14:30,540 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 08:14:30,611 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 08:14:30,646 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 08:14:30,655 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 08:14:30,663 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 08:14:30,704 WARN L623 FunctionHandler]: Unknown extern function hrtimer_start_range_ns [2022-12-14 08:14:30,917 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 08:14:30,925 WARN L623 FunctionHandler]: Unknown extern function __tasklet_hi_schedule [2022-12-14 08:14:31,006 WARN L623 FunctionHandler]: Unknown extern function sg_copy_to_buffer [2022-12-14 08:14:31,177 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,178 WARN L623 FunctionHandler]: Unknown extern function scsi_build_sense_buffer [2022-12-14 08:14:31,182 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,187 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,188 WARN L623 FunctionHandler]: Unknown extern function scsi_build_sense_buffer [2022-12-14 08:14:31,189 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,199 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,199 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,200 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,211 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:31,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,214 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,215 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,221 WARN L623 FunctionHandler]: Unknown extern function sg_copy_from_buffer [2022-12-14 08:14:31,292 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,294 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,302 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,303 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,306 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,324 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,332 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,332 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,336 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,336 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,411 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,448 WARN L623 FunctionHandler]: Unknown extern function sg_copy_buffer [2022-12-14 08:14:31,449 WARN L623 FunctionHandler]: Unknown extern function sg_copy_buffer [2022-12-14 08:14:31,457 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:14:31,457 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:14:31,464 WARN L623 FunctionHandler]: Unknown extern function ip_compute_csum [2022-12-14 08:14:31,464 WARN L623 FunctionHandler]: Unknown extern function crc_t10dif [2022-12-14 08:14:31,469 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,470 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,470 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,475 WARN L623 FunctionHandler]: Unknown extern function sg_miter_start [2022-12-14 08:14:31,476 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:31,477 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:31,484 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,486 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 08:14:31,487 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 08:14:31,487 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 08:14:31,492 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,493 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,494 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,494 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,499 WARN L623 FunctionHandler]: Unknown extern function sg_miter_start [2022-12-14 08:14:31,500 WARN L623 FunctionHandler]: Unknown extern function sg_miter_start [2022-12-14 08:14:31,500 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:31,500 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 08:14:31,501 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:31,501 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 08:14:31,502 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:31,502 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:31,503 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:31,503 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:31,503 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:31,517 WARN L623 FunctionHandler]: Unknown extern function find_next_zero_bit [2022-12-14 08:14:31,517 WARN L623 FunctionHandler]: Unknown extern function find_next_bit [2022-12-14 08:14:31,530 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,531 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 08:14:31,531 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:31,532 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:31,532 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,538 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 08:14:31,539 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:31,539 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,540 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:31,545 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,547 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 08:14:31,547 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,548 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:31,548 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,550 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 08:14:31,551 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:31,551 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,561 WARN L623 FunctionHandler]: Unknown extern function sg_miter_start [2022-12-14 08:14:31,562 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:31,562 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:31,562 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,568 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,569 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,569 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,570 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,571 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,571 WARN L623 FunctionHandler]: Unknown extern function find_last_bit [2022-12-14 08:14:31,579 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,580 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,580 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,581 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,581 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,581 WARN L623 FunctionHandler]: Unknown extern function find_last_bit [2022-12-14 08:14:31,591 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,593 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,598 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,603 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,604 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-12-14 08:14:31,609 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,615 WARN L623 FunctionHandler]: Unknown extern function hrtimer_cancel [2022-12-14 08:14:31,615 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 08:14:31,621 WARN L623 FunctionHandler]: Unknown extern function hrtimer_cancel [2022-12-14 08:14:31,622 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 08:14:31,627 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,627 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,627 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,632 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,638 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,644 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,645 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,651 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,652 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,658 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,659 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,672 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,673 WARN L623 FunctionHandler]: Unknown extern function find_first_zero_bit [2022-12-14 08:14:31,674 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,675 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 08:14:31,676 WARN L623 FunctionHandler]: Unknown extern function hrtimer_init [2022-12-14 08:14:31,677 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 08:14:31,677 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,683 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 08:14:31,688 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 08:14:31,688 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 08:14:31,694 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 08:14:31,695 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:31,695 WARN L623 FunctionHandler]: Unknown extern function find_last_bit [2022-12-14 08:14:31,695 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 08:14:31,700 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,706 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:31,711 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,716 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:31,721 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,726 WARN L623 FunctionHandler]: Unknown extern function strncasecmp [2022-12-14 08:14:31,732 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,742 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,752 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,757 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,763 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,772 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,782 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,787 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,792 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,801 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,812 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,817 WARN L623 FunctionHandler]: Unknown extern function find_last_bit [2022-12-14 08:14:31,822 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,828 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,833 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,843 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,853 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,863 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,868 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,873 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,878 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,883 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,888 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,889 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,894 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,903 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,908 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:31,914 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,924 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,927 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,927 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,928 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,930 WARN L623 FunctionHandler]: Unknown extern function __root_device_register [2022-12-14 08:14:31,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,930 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-12-14 08:14:31,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,931 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-12-14 08:14:31,931 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,931 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,932 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 08:14:31,932 WARN L623 FunctionHandler]: Unknown extern function root_device_unregister [2022-12-14 08:14:31,932 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:31,932 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:31,932 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:31,937 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 08:14:31,938 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 08:14:31,938 WARN L623 FunctionHandler]: Unknown extern function root_device_unregister [2022-12-14 08:14:31,938 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:31,938 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:31,943 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,944 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,945 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-12-14 08:14:31,945 WARN L623 FunctionHandler]: Unknown extern function device_register [2022-12-14 08:14:31,945 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:14:31,945 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,946 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,946 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:14:31,946 WARN L623 FunctionHandler]: Unknown extern function device_unregister [2022-12-14 08:14:31,951 WARN L623 FunctionHandler]: Unknown extern function scsi_change_queue_depth [2022-12-14 08:14:31,952 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,963 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:31,964 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,967 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,968 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:31,968 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:31,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,983 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,984 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-12-14 08:14:31,984 WARN L623 FunctionHandler]: Unknown extern function scsi_scan_host [2022-12-14 08:14:31,989 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:31,989 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:14:31,989 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:31,989 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-12-14 08:14:32,022 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 08:14:32,031 WARN L623 FunctionHandler]: Unknown extern function ldv_release_3 [2022-12-14 08:14:32,031 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_3 [2022-12-14 08:14:32,035 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 08:14:32,037 WARN L623 FunctionHandler]: Unknown extern function scsi_add_host_with_dma [2022-12-14 08:14:32,037 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 08:14:32,037 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 08:14:32,038 WARN L623 FunctionHandler]: Unknown extern function scsi_host_alloc [2022-12-14 08:14:32,039 WARN L623 FunctionHandler]: Unknown extern function scsi_remove_host [2022-12-14 08:14:32,043 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_62032658-31de-4902-94ee-e6cf55bc4fa2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i[422408,422421] [2022-12-14 08:14:32,063 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 08:14:32,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:14:32,178 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:14:32,249 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 08:14:32,251 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 08:14:32,252 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 08:14:32,253 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 08:14:32,253 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 08:14:32,255 WARN L623 FunctionHandler]: Unknown extern function hrtimer_start_range_ns [2022-12-14 08:14:32,258 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 08:14:32,259 WARN L623 FunctionHandler]: Unknown extern function __tasklet_hi_schedule [2022-12-14 08:14:32,263 WARN L623 FunctionHandler]: Unknown extern function sg_copy_to_buffer [2022-12-14 08:14:32,276 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,276 WARN L623 FunctionHandler]: Unknown extern function scsi_build_sense_buffer [2022-12-14 08:14:32,278 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,279 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,280 WARN L623 FunctionHandler]: Unknown extern function scsi_build_sense_buffer [2022-12-14 08:14:32,280 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,281 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,281 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,281 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,283 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:32,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,286 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,286 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,287 WARN L623 FunctionHandler]: Unknown extern function sg_copy_from_buffer [2022-12-14 08:14:32,311 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,312 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,318 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,319 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,321 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,347 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,358 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,359 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,367 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,368 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,394 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,406 WARN L623 FunctionHandler]: Unknown extern function sg_copy_buffer [2022-12-14 08:14:32,407 WARN L623 FunctionHandler]: Unknown extern function sg_copy_buffer [2022-12-14 08:14:32,408 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:14:32,408 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:14:32,410 WARN L623 FunctionHandler]: Unknown extern function ip_compute_csum [2022-12-14 08:14:32,410 WARN L623 FunctionHandler]: Unknown extern function crc_t10dif [2022-12-14 08:14:32,411 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,411 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,412 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,412 WARN L623 FunctionHandler]: Unknown extern function sg_miter_start [2022-12-14 08:14:32,413 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:32,414 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:32,416 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,418 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 08:14:32,418 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 08:14:32,418 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 08:14:32,419 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,420 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,420 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,421 WARN L623 FunctionHandler]: Unknown extern function sg_miter_start [2022-12-14 08:14:32,422 WARN L623 FunctionHandler]: Unknown extern function sg_miter_start [2022-12-14 08:14:32,422 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:32,422 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 08:14:32,422 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:32,423 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 08:14:32,423 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:32,424 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:32,424 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:32,424 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:32,424 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:32,425 WARN L623 FunctionHandler]: Unknown extern function find_next_zero_bit [2022-12-14 08:14:32,425 WARN L623 FunctionHandler]: Unknown extern function find_next_bit [2022-12-14 08:14:32,429 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,429 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 08:14:32,430 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:32,430 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:32,430 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,431 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 08:14:32,432 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:32,432 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,433 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:32,437 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,438 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 08:14:32,438 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,439 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:32,439 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,440 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 08:14:32,441 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 08:14:32,441 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,445 WARN L623 FunctionHandler]: Unknown extern function sg_miter_start [2022-12-14 08:14:32,446 WARN L623 FunctionHandler]: Unknown extern function sg_miter_next [2022-12-14 08:14:32,446 WARN L623 FunctionHandler]: Unknown extern function sg_miter_stop [2022-12-14 08:14:32,446 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,448 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,448 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,449 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,449 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,449 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,450 WARN L623 FunctionHandler]: Unknown extern function find_last_bit [2022-12-14 08:14:32,452 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,454 WARN L623 FunctionHandler]: Unknown extern function find_last_bit [2022-12-14 08:14:32,462 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,463 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,467 WARN L623 FunctionHandler]: Unknown extern function blk_queue_max_segment_size [2022-12-14 08:14:32,468 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,469 WARN L623 FunctionHandler]: Unknown extern function hrtimer_cancel [2022-12-14 08:14:32,469 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 08:14:32,471 WARN L623 FunctionHandler]: Unknown extern function hrtimer_cancel [2022-12-14 08:14:32,471 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 08:14:32,472 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,472 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,472 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,473 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,473 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,474 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,478 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,478 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,482 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,482 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,483 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,484 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,486 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,486 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,487 WARN L623 FunctionHandler]: Unknown extern function find_first_zero_bit [2022-12-14 08:14:32,487 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,488 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 08:14:32,488 WARN L623 FunctionHandler]: Unknown extern function hrtimer_init [2022-12-14 08:14:32,489 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 08:14:32,489 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,491 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 08:14:32,506 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 08:14:32,506 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 08:14:32,508 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 08:14:32,509 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:32,509 WARN L623 FunctionHandler]: Unknown extern function find_last_bit [2022-12-14 08:14:32,509 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 08:14:32,510 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,510 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:32,511 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,512 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:32,513 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,514 WARN L623 FunctionHandler]: Unknown extern function strncasecmp [2022-12-14 08:14:32,515 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,516 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,517 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,518 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,519 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,520 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,521 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,522 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,522 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,523 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,525 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,526 WARN L623 FunctionHandler]: Unknown extern function find_last_bit [2022-12-14 08:14:32,527 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,527 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,528 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,530 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,531 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,532 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,533 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,534 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,534 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,535 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,536 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,536 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,537 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,538 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,539 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:32,540 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,543 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,543 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,544 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,544 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,545 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,545 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,545 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,546 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,547 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,547 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,548 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,549 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,549 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,549 WARN L623 FunctionHandler]: Unknown extern function __root_device_register [2022-12-14 08:14:32,550 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,550 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-12-14 08:14:32,551 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,551 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-12-14 08:14:32,551 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,551 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,552 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,552 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 08:14:32,552 WARN L623 FunctionHandler]: Unknown extern function root_device_unregister [2022-12-14 08:14:32,553 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:32,553 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:32,553 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:32,554 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 08:14:32,554 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 08:14:32,554 WARN L623 FunctionHandler]: Unknown extern function root_device_unregister [2022-12-14 08:14:32,554 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:32,554 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 08:14:32,555 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,556 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,559 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-12-14 08:14:32,559 WARN L623 FunctionHandler]: Unknown extern function device_register [2022-12-14 08:14:32,560 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:14:32,560 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,561 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,561 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:14:32,562 WARN L623 FunctionHandler]: Unknown extern function device_unregister [2022-12-14 08:14:32,562 WARN L623 FunctionHandler]: Unknown extern function scsi_change_queue_depth [2022-12-14 08:14:32,563 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,566 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 08:14:32,566 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,575 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,576 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 08:14:32,577 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 08:14:32,580 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,582 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,584 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,584 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-12-14 08:14:32,584 WARN L623 FunctionHandler]: Unknown extern function scsi_scan_host [2022-12-14 08:14:32,585 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:14:32,586 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 08:14:32,586 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:14:32,586 WARN L623 FunctionHandler]: Unknown extern function scsi_host_put [2022-12-14 08:14:32,596 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 08:14:32,606 WARN L623 FunctionHandler]: Unknown extern function ldv_release_3 [2022-12-14 08:14:32,607 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_3 [2022-12-14 08:14:32,611 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 08:14:32,612 WARN L623 FunctionHandler]: Unknown extern function scsi_add_host_with_dma [2022-12-14 08:14:32,613 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 08:14:32,613 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 08:14:32,614 WARN L623 FunctionHandler]: Unknown extern function scsi_host_alloc [2022-12-14 08:14:32,615 WARN L623 FunctionHandler]: Unknown extern function scsi_remove_host [2022-12-14 08:14:32,615 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_62032658-31de-4902-94ee-e6cf55bc4fa2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i[422408,422421] [2022-12-14 08:14:32,616 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 08:14:32,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:14:32,820 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:14:32,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32 WrapperNode [2022-12-14 08:14:32,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:14:32,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:14:32,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:14:32,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:14:32,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:32,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,138 INFO L138 Inliner]: procedures = 367, calls = 5946, calls flagged for inlining = 162, calls inlined = 160, statements flattened = 12635 [2022-12-14 08:14:33,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:14:33,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:14:33,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:14:33,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:14:33,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,438 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:14:33,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:14:33,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:14:33,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:14:33,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (1/1) ... [2022-12-14 08:14:33,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:14:33,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:14:33,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:14:33,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:14:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 08:14:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 08:14:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-14 08:14:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-14 08:14:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure map_index_to_lba [2022-12-14 08:14:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure map_index_to_lba [2022-12-14 08:14:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure sector_size_show [2022-12-14 08:14:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sector_size_show [2022-12-14 08:14:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 08:14:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 08:14:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 08:14:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 08:14:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure dif_show [2022-12-14 08:14:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure dif_show [2022-12-14 08:14:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 08:14:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 08:14:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure stop_all_queued [2022-12-14 08:14:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_all_queued [2022-12-14 08:14:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure sdebug_remove_adapter [2022-12-14 08:14:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sdebug_remove_adapter [2022-12-14 08:14:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_lbp [2022-12-14 08:14:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_lbp [2022-12-14 08:14:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure sdebug_queuecommand_lock_or_not [2022-12-14 08:14:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sdebug_queuecommand_lock_or_not [2022-12-14 08:14:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-12-14 08:14:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-12-14 08:14:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_host_reset [2022-12-14 08:14:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_host_reset [2022-12-14 08:14:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-12-14 08:14:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-12-14 08:14:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 08:14:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure dev_size_mb_show [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_size_mb_show [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure num_parts_show [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure num_parts_show [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_level_show [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_level_show [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure fill_from_dev_buffer [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_from_dev_buffer [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_slave_destroy [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_slave_destroy [2022-12-14 08:14:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure map_region [2022-12-14 08:14:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure map_region [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure fetch_to_dev_buffer [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure fetch_to_dev_buffer [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_set_guard [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_set_guard [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_info [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_info [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_abort [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_abort [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_resp [2022-12-14 08:14:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_resp [2022-12-14 08:14:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure pseudo_lld_bus_match [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pseudo_lld_bus_match [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure host_lock_show [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure host_lock_show [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_bus_reset [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_bus_reset [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure no_lun_0_show [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure no_lun_0_show [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure dif_copy_prot [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dif_copy_prot [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be64 [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be64 [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure resp_err_recov_pg [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_err_recov_pg [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure map_show [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure map_show [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure no_uld_show [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure no_uld_show [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-12-14 08:14:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 08:14:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_build_sense_buffer [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_build_sense_buffer [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure removable_show [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure removable_show [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure num_tgts_show [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure num_tgts_show [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure sdebug_device_create [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure sdebug_device_create [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure resp_sas_pcd_m_spg [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_sas_pcd_m_spg [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-14 08:14:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure find_last_bit [2022-12-14 08:14:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure find_last_bit [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_ioctl [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_ioctl [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure max_queue_show [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure max_queue_show [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_next [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_next [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure check_device_access_params [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure check_device_access_params [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_priv [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_priv [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_start [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_start [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure strict_show [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure strict_show [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure dif_verify [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dif_verify [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure resp_sas_sf_m_pg [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_sas_sf_m_pg [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-12-14 08:14:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-12-14 08:14:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure resp_read_dt0 [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_read_dt0 [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure resp_disconnect_pg [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_disconnect_pg [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure dsense_show [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dsense_show [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure resp_format_pg [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_format_pg [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure lba_to_map_index [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure lba_to_map_index [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_prot_sglist [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_prot_sglist [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure resp_write_same [2022-12-14 08:14:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_write_same [2022-12-14 08:14:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure ndelay_show [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ndelay_show [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be64 [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be64 [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure resp_caching_pg [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_caching_pg [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_queuecommand [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_queuecommand [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_slave_alloc [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_slave_alloc [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure resp_iec_m_pg [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_iec_m_pg [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure resp_write_dt0 [2022-12-14 08:14:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_write_dt0 [2022-12-14 08:14:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure sdebug_change_qdepth [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sdebug_change_qdepth [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_irqrestore [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_irqrestore [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_show_info [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_show_info [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure ptype_show [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ptype_show [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure root_device_unregister [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure root_device_unregister [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure unmap_region [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure unmap_region [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure fake_rw_show [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure fake_rw_show [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 08:14:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 08:14:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure mk_sense_invalid_fld [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mk_sense_invalid_fld [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure max_luns_show [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure max_luns_show [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irqsave [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irqsave [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_cancel [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_cancel [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure opts_show [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure opts_show [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure devInfoReg [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure devInfoReg [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure guard_show [2022-12-14 08:14:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure guard_show [2022-12-14 08:14:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_device_reset [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_device_reset [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irqrestore [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irqrestore [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure sdebug_max_tgts_luns [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure sdebug_max_tgts_luns [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_slave_configure [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_slave_configure [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be32 [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be32 [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bidi_cmnd [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bidi_cmnd [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_stop [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_stop [2022-12-14 08:14:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure do_device_access [2022-12-14 08:14:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure do_device_access [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure virtual_gb_show [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure virtual_gb_show [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure vpd_use_hostno_show [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure vpd_use_hostno_show [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_target_reset [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_target_reset [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure dix_show [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure dix_show [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure every_nth_show [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure every_nth_show [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_in [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_in [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure clear_luns_changed_on_target [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_luns_changed_on_target [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_prot_sg_count [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_prot_sg_count [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure ato_show [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ato_show [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure mk_sense_buffer [2022-12-14 08:14:33,578 INFO L138 BoogieDeclarations]: Found implementation of procedure mk_sense_buffer [2022-12-14 08:14:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure resp_sas_sha_m_spg [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_sas_sha_m_spg [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure add_host_show [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure add_host_show [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure sdebug_add_adapter [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sdebug_add_adapter [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_copy_to_buffer [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_copy_to_buffer [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure dif_store [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure dif_store [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure mk_sense_invalid_opcode [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mk_sense_invalid_opcode [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_buffer [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_buffer [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_set_resid [2022-12-14 08:14:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_set_resid [2022-12-14 08:14:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-12-14 08:14:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-12-14 08:14:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:14:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure delay_show [2022-12-14 08:14:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure delay_show [2022-12-14 08:14:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-12-14 08:14:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-12-14 08:14:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure get_sdebug_capacity [2022-12-14 08:14:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sdebug_capacity [2022-12-14 08:14:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:14:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:14:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure resp_ctrl_m_pg [2022-12-14 08:14:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure resp_ctrl_m_pg [2022-12-14 08:14:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 08:14:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 08:14:34,295 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:14:34,299 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:14:35,036 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 08:15:14,759 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:15:16,893 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:15:16,893 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 08:15:16,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:15:16 BoogieIcfgContainer [2022-12-14 08:15:16,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:15:16,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:15:16,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:15:16,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:15:16,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:14:29" (1/3) ... [2022-12-14 08:15:16,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7982d6f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:15:16, skipping insertion in model container [2022-12-14 08:15:16,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:14:32" (2/3) ... [2022-12-14 08:15:16,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7982d6f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:15:16, skipping insertion in model container [2022-12-14 08:15:16,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:15:16" (3/3) ... [2022-12-14 08:15:16,906 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i [2022-12-14 08:15:16,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:15:16,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:15:17,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:15:17,016 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@51fed016, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:15:17,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:15:17,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 2826 states, 1840 states have (on average 1.4271739130434782) internal successors, (2626), 1927 states have internal predecessors, (2626), 829 states have call successors, (829), 156 states have call predecessors, (829), 155 states have return successors, (798), 786 states have call predecessors, (798), 798 states have call successors, (798) [2022-12-14 08:15:17,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2022-12-14 08:15:17,062 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:15:17,062 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:15:17,063 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:15:17,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:15:17,067 INFO L85 PathProgramCache]: Analyzing trace with hash 593805937, now seen corresponding path program 1 times [2022-12-14 08:15:17,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:15:17,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881932386] [2022-12-14 08:15:17,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:15:17,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:15:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:15:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2022-12-14 08:15:19,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:15:19,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881932386] [2022-12-14 08:15:19,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881932386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:15:19,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:15:19,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:15:19,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528252001] [2022-12-14 08:15:19,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:15:19,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:15:19,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:15:19,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:15:19,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:15:19,064 INFO L87 Difference]: Start difference. First operand has 2826 states, 1840 states have (on average 1.4271739130434782) internal successors, (2626), 1927 states have internal predecessors, (2626), 829 states have call successors, (829), 156 states have call predecessors, (829), 155 states have return successors, (798), 786 states have call predecessors, (798), 798 states have call successors, (798) Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2022-12-14 08:15:21,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:24,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:26,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:28,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:31,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:34,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:39,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:15:39,070 INFO L93 Difference]: Finished difference Result 8081 states and 12245 transitions. [2022-12-14 08:15:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:15:39,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 907 [2022-12-14 08:15:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:15:39,121 INFO L225 Difference]: With dead ends: 8081 [2022-12-14 08:15:39,121 INFO L226 Difference]: Without dead ends: 5295 [2022-12-14 08:15:39,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:15:39,143 INFO L413 NwaCegarLoop]: 4585 mSDtfsCounter, 3870 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 8455 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:15:39,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3876 Valid, 8455 Invalid, 749 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 742 Invalid, 6 Unknown, 0 Unchecked, 19.6s Time] [2022-12-14 08:15:39,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5295 states. [2022-12-14 08:15:39,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5295 to 5286. [2022-12-14 08:15:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 3511 states have (on average 1.4186841355739106) internal successors, (4981), 3619 states have internal predecessors, (4981), 1469 states have call successors, (1469), 306 states have call predecessors, (1469), 305 states have return successors, (1469), 1440 states have call predecessors, (1469), 1467 states have call successors, (1469) [2022-12-14 08:15:39,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7919 transitions. [2022-12-14 08:15:39,513 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7919 transitions. Word has length 907 [2022-12-14 08:15:39,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:15:39,516 INFO L495 AbstractCegarLoop]: Abstraction has 5286 states and 7919 transitions. [2022-12-14 08:15:39,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2022-12-14 08:15:39,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7919 transitions. [2022-12-14 08:15:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2022-12-14 08:15:39,555 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:15:39,555 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:15:39,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:15:39,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:15:39,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:15:39,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1592008909, now seen corresponding path program 1 times [2022-12-14 08:15:39,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:15:39,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600341058] [2022-12-14 08:15:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:15:39,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:15:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:15:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2022-12-14 08:15:40,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:15:40,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600341058] [2022-12-14 08:15:40,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600341058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:15:40,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:15:40,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:15:40,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712930275] [2022-12-14 08:15:40,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:15:40,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:15:40,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:15:40,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:15:40,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:15:40,781 INFO L87 Difference]: Start difference. First operand 5286 states and 7919 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2022-12-14 08:15:42,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:46,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:48,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:50,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:53,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:15:56,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:02,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:02,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:16:02,228 INFO L93 Difference]: Finished difference Result 15418 states and 23102 transitions. [2022-12-14 08:16:02,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:16:02,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 914 [2022-12-14 08:16:02,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:16:02,271 INFO L225 Difference]: With dead ends: 15418 [2022-12-14 08:16:02,271 INFO L226 Difference]: Without dead ends: 10293 [2022-12-14 08:16:02,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:16:02,288 INFO L413 NwaCegarLoop]: 4492 mSDtfsCounter, 3736 mSDsluCounter, 3761 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3742 SdHoareTripleChecker+Valid, 8253 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:16:02,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3742 Valid, 8253 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 737 Invalid, 6 Unknown, 0 Unchecked, 21.1s Time] [2022-12-14 08:16:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10293 states. [2022-12-14 08:16:02,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10293 to 10283. [2022-12-14 08:16:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10283 states, 6860 states have (on average 1.4246355685131196) internal successors, (9773), 7076 states have internal predecessors, (9773), 2817 states have call successors, (2817), 606 states have call predecessors, (2817), 605 states have return successors, (2821), 2758 states have call predecessors, (2821), 2815 states have call successors, (2821) [2022-12-14 08:16:02,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10283 states to 10283 states and 15411 transitions. [2022-12-14 08:16:02,586 INFO L78 Accepts]: Start accepts. Automaton has 10283 states and 15411 transitions. Word has length 914 [2022-12-14 08:16:02,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:16:02,588 INFO L495 AbstractCegarLoop]: Abstraction has 10283 states and 15411 transitions. [2022-12-14 08:16:02,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2022-12-14 08:16:02,588 INFO L276 IsEmpty]: Start isEmpty. Operand 10283 states and 15411 transitions. [2022-12-14 08:16:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2022-12-14 08:16:02,597 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:16:02,597 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 20, 20, 20, 20, 20, 20, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:16:02,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:16:02,597 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:16:02,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:16:02,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1933246117, now seen corresponding path program 1 times [2022-12-14 08:16:02,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:16:02,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917007280] [2022-12-14 08:16:02,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:16:02,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:16:03,000 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:16:03,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865588713] [2022-12-14 08:16:03,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:16:03,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:16:03,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:16:03,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:16:03,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:16:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:16:05,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 14442 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:16:05,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:16:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 17866 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17866 trivial. 0 not checked. [2022-12-14 08:16:12,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:16:12,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:16:12,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917007280] [2022-12-14 08:16:12,161 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:16:12,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865588713] [2022-12-14 08:16:12,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865588713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:16:12,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:16:12,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:16:12,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987952989] [2022-12-14 08:16:12,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:16:12,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:16:12,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:16:12,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:16:12,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:16:12,163 INFO L87 Difference]: Start difference. First operand 10283 states and 15411 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2022-12-14 08:16:14,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:18,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:19,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:21,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:27,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:29,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 08:16:32,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:16:34,320 INFO L93 Difference]: Finished difference Result 19242 states and 28932 transitions. [2022-12-14 08:16:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:16:34,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 918 [2022-12-14 08:16:34,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:16:34,394 INFO L225 Difference]: With dead ends: 19242 [2022-12-14 08:16:34,394 INFO L226 Difference]: Without dead ends: 19238 [2022-12-14 08:16:34,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 916 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:16:34,403 INFO L413 NwaCegarLoop]: 4471 mSDtfsCounter, 3619 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3621 SdHoareTripleChecker+Valid, 7809 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:16:34,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3621 Valid, 7809 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 706 Invalid, 5 Unknown, 0 Unchecked, 21.8s Time] [2022-12-14 08:16:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19238 states. [2022-12-14 08:16:34,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19238 to 19093. [2022-12-14 08:16:34,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19093 states, 12881 states have (on average 1.4298579302849157) internal successors, (18418), 13254 states have internal predecessors, (18418), 5081 states have call successors, (5081), 1135 states have call predecessors, (5081), 1130 states have return successors, (5173), 4961 states have call predecessors, (5173), 5079 states have call successors, (5173) [2022-12-14 08:16:34,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19093 states to 19093 states and 28672 transitions. [2022-12-14 08:16:34,980 INFO L78 Accepts]: Start accepts. Automaton has 19093 states and 28672 transitions. Word has length 918 [2022-12-14 08:16:34,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:16:34,981 INFO L495 AbstractCegarLoop]: Abstraction has 19093 states and 28672 transitions. [2022-12-14 08:16:34,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2022-12-14 08:16:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 19093 states and 28672 transitions. [2022-12-14 08:16:34,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 938 [2022-12-14 08:16:34,992 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:16:34,993 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:16:35,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:16:35,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:16:35,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:16:35,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:16:35,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2071451769, now seen corresponding path program 1 times [2022-12-14 08:16:35,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:16:35,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336783627] [2022-12-14 08:16:35,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:16:35,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:16:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:16:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2022-12-14 08:16:36,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:16:36,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336783627] [2022-12-14 08:16:36,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336783627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:16:36,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:16:36,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:16:36,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664762821] [2022-12-14 08:16:36,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:16:36,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:16:36,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:16:36,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:16:36,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:16:36,717 INFO L87 Difference]: Start difference. First operand 19093 states and 28672 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 08:16:37,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:42,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:44,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:46,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:48,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 08:16:50,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:54,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:56,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:16:59,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:00,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:17:00,012 INFO L93 Difference]: Finished difference Result 43507 states and 65054 transitions. [2022-12-14 08:17:00,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:17:00,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 937 [2022-12-14 08:17:00,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:17:00,080 INFO L225 Difference]: With dead ends: 43507 [2022-12-14 08:17:00,080 INFO L226 Difference]: Without dead ends: 24575 [2022-12-14 08:17:00,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:17:00,127 INFO L413 NwaCegarLoop]: 3946 mSDtfsCounter, 1405 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 7385 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:17:00,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 7385 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 811 Invalid, 6 Unknown, 0 Unchecked, 22.7s Time] [2022-12-14 08:17:00,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24575 states. [2022-12-14 08:17:00,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24575 to 24571. [2022-12-14 08:17:00,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24571 states, 17011 states have (on average 1.4462406678031863) internal successors, (24602), 17510 states have internal predecessors, (24602), 5955 states have call successors, (5955), 1613 states have call predecessors, (5955), 1604 states have return successors, (6053), 5795 states have call predecessors, (6053), 5953 states have call successors, (6053) [2022-12-14 08:17:00,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24571 states to 24571 states and 36610 transitions. [2022-12-14 08:17:00,892 INFO L78 Accepts]: Start accepts. Automaton has 24571 states and 36610 transitions. Word has length 937 [2022-12-14 08:17:00,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:17:00,893 INFO L495 AbstractCegarLoop]: Abstraction has 24571 states and 36610 transitions. [2022-12-14 08:17:00,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 08:17:00,893 INFO L276 IsEmpty]: Start isEmpty. Operand 24571 states and 36610 transitions. [2022-12-14 08:17:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2022-12-14 08:17:00,906 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:17:00,906 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 59, 59, 59, 59, 59, 59, 20, 20, 20, 20, 20, 20, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:17:00,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:17:00,906 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:17:00,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:17:00,907 INFO L85 PathProgramCache]: Analyzing trace with hash -214923586, now seen corresponding path program 1 times [2022-12-14 08:17:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:17:00,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561948756] [2022-12-14 08:17:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:17:00,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:17:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:17:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 18459 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18452 trivial. 0 not checked. [2022-12-14 08:17:02,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:17:02,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561948756] [2022-12-14 08:17:02,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561948756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:17:02,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:17:02,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:17:02,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048500657] [2022-12-14 08:17:02,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:17:02,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:17:02,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:17:02,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:17:02,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:17:02,045 INFO L87 Difference]: Start difference. First operand 24571 states and 36610 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-12-14 08:17:03,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:05,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 08:17:10,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:12,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:15,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:20,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:23,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:17:26,513 INFO L93 Difference]: Finished difference Result 72646 states and 108257 transitions. [2022-12-14 08:17:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:17:26,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 983 [2022-12-14 08:17:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:17:26,727 INFO L225 Difference]: With dead ends: 72646 [2022-12-14 08:17:26,727 INFO L226 Difference]: Without dead ends: 48236 [2022-12-14 08:17:26,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:17:26,802 INFO L413 NwaCegarLoop]: 6425 mSDtfsCounter, 3990 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3996 SdHoareTripleChecker+Valid, 9947 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-12-14 08:17:26,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3996 Valid, 9947 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 985 Invalid, 6 Unknown, 0 Unchecked, 23.4s Time] [2022-12-14 08:17:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48236 states. [2022-12-14 08:17:28,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48236 to 48223. [2022-12-14 08:17:28,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48223 states, 33419 states have (on average 1.4471408480205872) internal successors, (48362), 34374 states have internal predecessors, (48362), 11647 states have call successors, (11647), 3173 states have call predecessors, (11647), 3156 states have return successors, (11849), 11339 states have call predecessors, (11849), 11645 states have call successors, (11849) [2022-12-14 08:17:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48223 states to 48223 states and 71858 transitions. [2022-12-14 08:17:28,393 INFO L78 Accepts]: Start accepts. Automaton has 48223 states and 71858 transitions. Word has length 983 [2022-12-14 08:17:28,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:17:28,394 INFO L495 AbstractCegarLoop]: Abstraction has 48223 states and 71858 transitions. [2022-12-14 08:17:28,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-12-14 08:17:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 48223 states and 71858 transitions. [2022-12-14 08:17:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1008 [2022-12-14 08:17:28,411 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:17:28,411 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 21, 21, 20, 20, 20, 20, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:17:28,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:17:28,411 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:17:28,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:17:28,412 INFO L85 PathProgramCache]: Analyzing trace with hash -266009647, now seen corresponding path program 1 times [2022-12-14 08:17:28,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:17:28,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656884398] [2022-12-14 08:17:28,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:17:28,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:17:28,956 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:17:28,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27025599] [2022-12-14 08:17:28,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:17:28,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:17:28,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:17:28,957 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:17:28,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:17:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:17:31,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 15185 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:17:31,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:17:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 17939 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17928 trivial. 0 not checked. [2022-12-14 08:17:39,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:17:39,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:17:39,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656884398] [2022-12-14 08:17:39,109 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:17:39,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27025599] [2022-12-14 08:17:39,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27025599] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:17:39,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:17:39,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:17:39,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124347045] [2022-12-14 08:17:39,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:17:39,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:17:39,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:17:39,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:17:39,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:17:39,114 INFO L87 Difference]: Start difference. First operand 48223 states and 71858 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2022-12-14 08:17:41,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:45,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:47,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:49,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:53,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:55,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:17:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:17:57,376 INFO L93 Difference]: Finished difference Result 96242 states and 143393 transitions. [2022-12-14 08:17:57,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:17:57,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) Word has length 1007 [2022-12-14 08:17:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:17:57,500 INFO L225 Difference]: With dead ends: 96242 [2022-12-14 08:17:57,500 INFO L226 Difference]: Without dead ends: 48180 [2022-12-14 08:17:57,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1006 GetRequests, 1005 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:17:57,596 INFO L413 NwaCegarLoop]: 3775 mSDtfsCounter, 3792 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3796 SdHoareTripleChecker+Valid, 3835 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:17:57,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3796 Valid, 3835 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 5 Unknown, 0 Unchecked, 16.7s Time] [2022-12-14 08:17:57,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48180 states. [2022-12-14 08:17:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48180 to 48180. [2022-12-14 08:17:58,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48180 states, 33362 states have (on average 1.4461363227624242) internal successors, (48246), 34318 states have internal predecessors, (48246), 11653 states have call successors, (11653), 3180 states have call predecessors, (11653), 3164 states have return successors, (11859), 11345 states have call predecessors, (11859), 11651 states have call successors, (11859) [2022-12-14 08:17:59,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48180 states to 48180 states and 71758 transitions. [2022-12-14 08:17:59,110 INFO L78 Accepts]: Start accepts. Automaton has 48180 states and 71758 transitions. Word has length 1007 [2022-12-14 08:17:59,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:17:59,111 INFO L495 AbstractCegarLoop]: Abstraction has 48180 states and 71758 transitions. [2022-12-14 08:17:59,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2022-12-14 08:17:59,111 INFO L276 IsEmpty]: Start isEmpty. Operand 48180 states and 71758 transitions. [2022-12-14 08:17:59,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1231 [2022-12-14 08:17:59,158 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:17:59,158 INFO L195 NwaCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 77, 20, 20, 20, 20, 20, 20, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:17:59,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 08:17:59,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:17:59,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:17:59,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:17:59,360 INFO L85 PathProgramCache]: Analyzing trace with hash 598669251, now seen corresponding path program 1 times [2022-12-14 08:17:59,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:17:59,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616659040] [2022-12-14 08:17:59,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:17:59,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:17:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:18:01,393 INFO L134 CoverageAnalysis]: Checked inductivity of 30633 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 30615 trivial. 0 not checked. [2022-12-14 08:18:01,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:18:01,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616659040] [2022-12-14 08:18:01,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616659040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:18:01,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:18:01,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:18:01,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204903409] [2022-12-14 08:18:01,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:18:01,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:18:01,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:18:01,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:18:01,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:18:01,397 INFO L87 Difference]: Start difference. First operand 48180 states and 71758 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2022-12-14 08:18:03,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:11,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:12,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:14,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:16,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:18,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:23,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:26,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:27,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:29,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:18:29,170 INFO L93 Difference]: Finished difference Result 96295 states and 143405 transitions. [2022-12-14 08:18:29,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:18:29,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) Word has length 1230 [2022-12-14 08:18:29,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:18:29,329 INFO L225 Difference]: With dead ends: 96295 [2022-12-14 08:18:29,329 INFO L226 Difference]: Without dead ends: 48180 [2022-12-14 08:18:29,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:18:29,441 INFO L413 NwaCegarLoop]: 3762 mSDtfsCounter, 3 mSDsluCounter, 7513 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11275 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:18:29,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11275 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1086 Invalid, 6 Unknown, 0 Unchecked, 26.3s Time] [2022-12-14 08:18:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48180 states. [2022-12-14 08:18:30,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48180 to 48180. [2022-12-14 08:18:31,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48180 states, 33362 states have (on average 1.439422096996583) internal successors, (48022), 34318 states have internal predecessors, (48022), 11653 states have call successors, (11653), 3180 states have call predecessors, (11653), 3164 states have return successors, (11859), 11345 states have call predecessors, (11859), 11651 states have call successors, (11859) [2022-12-14 08:18:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48180 states to 48180 states and 71534 transitions. [2022-12-14 08:18:31,157 INFO L78 Accepts]: Start accepts. Automaton has 48180 states and 71534 transitions. Word has length 1230 [2022-12-14 08:18:31,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:18:31,157 INFO L495 AbstractCegarLoop]: Abstraction has 48180 states and 71534 transitions. [2022-12-14 08:18:31,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 2 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2022-12-14 08:18:31,158 INFO L276 IsEmpty]: Start isEmpty. Operand 48180 states and 71534 transitions. [2022-12-14 08:18:31,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1252 [2022-12-14 08:18:31,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:18:31,186 INFO L195 NwaCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 77, 20, 20, 20, 20, 20, 20, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:18:31,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:18:31,187 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:18:31,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:18:31,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1806274906, now seen corresponding path program 1 times [2022-12-14 08:18:31,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:18:31,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598255739] [2022-12-14 08:18:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:18:31,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:18:31,511 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:18:31,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764137565] [2022-12-14 08:18:31,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:18:31,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:18:31,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:18:31,513 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:18:31,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:18:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:18:34,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 16492 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:18:34,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:18:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 30645 backedges. 794 proven. 0 refuted. 0 times theorem prover too weak. 29851 trivial. 0 not checked. [2022-12-14 08:18:34,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:18:34,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:18:34,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598255739] [2022-12-14 08:18:34,544 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:18:34,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764137565] [2022-12-14 08:18:34,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764137565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:18:34,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:18:34,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:18:34,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941247984] [2022-12-14 08:18:34,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:18:34,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:18:34,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:18:34,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:18:34,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:18:34,547 INFO L87 Difference]: Start difference. First operand 48180 states and 71534 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 3 states have call successors, (121), 3 states have call predecessors, (121), 3 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2022-12-14 08:18:36,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:42,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:44,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:47,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:51,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:54,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:56,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:18:57,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:18:57,727 INFO L93 Difference]: Finished difference Result 132399 states and 197039 transitions. [2022-12-14 08:18:57,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:18:57,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 3 states have call successors, (121), 3 states have call predecessors, (121), 3 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) Word has length 1251 [2022-12-14 08:18:57,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:18:58,004 INFO L225 Difference]: With dead ends: 132399 [2022-12-14 08:18:58,004 INFO L226 Difference]: Without dead ends: 84380 [2022-12-14 08:18:58,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1250 GetRequests, 1249 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:18:58,123 INFO L413 NwaCegarLoop]: 4394 mSDtfsCounter, 3681 mSDsluCounter, 3622 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 46 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3687 SdHoareTripleChecker+Valid, 8016 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:18:58,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3687 Valid, 8016 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 822 Invalid, 6 Unknown, 0 Unchecked, 21.0s Time] [2022-12-14 08:18:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84380 states. [2022-12-14 08:19:00,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84380 to 84371. [2022-12-14 08:19:00,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84371 states, 57999 states have (on average 1.433817824445249) internal successors, (83160), 59641 states have internal predecessors, (83160), 20999 states have call successors, (20999), 5396 states have call predecessors, (20999), 5372 states have return successors, (21353), 20457 states have call predecessors, (21353), 20997 states have call successors, (21353) [2022-12-14 08:19:00,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84371 states to 84371 states and 125512 transitions. [2022-12-14 08:19:00,628 INFO L78 Accepts]: Start accepts. Automaton has 84371 states and 125512 transitions. Word has length 1251 [2022-12-14 08:19:00,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:19:00,629 INFO L495 AbstractCegarLoop]: Abstraction has 84371 states and 125512 transitions. [2022-12-14 08:19:00,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 3 states have call successors, (121), 3 states have call predecessors, (121), 3 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2022-12-14 08:19:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 84371 states and 125512 transitions. [2022-12-14 08:19:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1251 [2022-12-14 08:19:00,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:00,659 INFO L195 NwaCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 77, 20, 20, 20, 20, 20, 20, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:19:00,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 08:19:00,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:19:00,861 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:19:00,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:00,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1637726451, now seen corresponding path program 1 times [2022-12-14 08:19:00,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:19:00,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2410196] [2022-12-14 08:19:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:00,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:19:01,223 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:19:01,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1764696161] [2022-12-14 08:19:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:01,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:19:01,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:19:01,224 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:19:01,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:19:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:04,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 16491 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:19:04,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:19:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 30645 backedges. 11050 proven. 0 refuted. 0 times theorem prover too weak. 19595 trivial. 0 not checked. [2022-12-14 08:19:04,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:19:04,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:19:04,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2410196] [2022-12-14 08:19:04,348 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:19:04,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764696161] [2022-12-14 08:19:04,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764696161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:19:04,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:19:04,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:19:04,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392148937] [2022-12-14 08:19:04,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:19:04,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:19:04,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:19:04,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:19:04,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:19:04,351 INFO L87 Difference]: Start difference. First operand 84371 states and 125512 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (115), 2 states have call predecessors, (115), 2 states have call successors, (115) [2022-12-14 08:19:06,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:13,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:15,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:17,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:23,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:28,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:19:29,031 INFO L93 Difference]: Finished difference Result 168640 states and 250869 transitions. [2022-12-14 08:19:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:19:29,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (115), 2 states have call predecessors, (115), 2 states have call successors, (115) Word has length 1250 [2022-12-14 08:19:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:19:29,290 INFO L225 Difference]: With dead ends: 168640 [2022-12-14 08:19:29,290 INFO L226 Difference]: Without dead ends: 84371 [2022-12-14 08:19:29,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1250 GetRequests, 1247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:19:29,462 INFO L413 NwaCegarLoop]: 3755 mSDtfsCounter, 3 mSDsluCounter, 7506 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11261 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-12-14 08:19:29,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11261 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1083 Invalid, 6 Unknown, 0 Unchecked, 22.4s Time] [2022-12-14 08:19:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84371 states. [2022-12-14 08:19:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84371 to 84371. [2022-12-14 08:19:31,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84371 states, 57999 states have (on average 1.4334040242073138) internal successors, (83136), 59641 states have internal predecessors, (83136), 20999 states have call successors, (20999), 5396 states have call predecessors, (20999), 5372 states have return successors, (21353), 20457 states have call predecessors, (21353), 20997 states have call successors, (21353) [2022-12-14 08:19:31,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84371 states to 84371 states and 125488 transitions. [2022-12-14 08:19:31,907 INFO L78 Accepts]: Start accepts. Automaton has 84371 states and 125488 transitions. Word has length 1250 [2022-12-14 08:19:31,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:19:31,908 INFO L495 AbstractCegarLoop]: Abstraction has 84371 states and 125488 transitions. [2022-12-14 08:19:31,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (115), 2 states have call predecessors, (115), 2 states have call successors, (115) [2022-12-14 08:19:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 84371 states and 125488 transitions. [2022-12-14 08:19:32,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1258 [2022-12-14 08:19:32,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:32,038 INFO L195 NwaCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 77, 20, 20, 20, 20, 20, 20, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:19:32,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:19:32,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 08:19:32,241 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:19:32,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:32,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1146346318, now seen corresponding path program 1 times [2022-12-14 08:19:32,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:19:32,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052786297] [2022-12-14 08:19:32,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:32,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:19:32,611 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:19:32,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569812969] [2022-12-14 08:19:32,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:32,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:19:32,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:19:32,613 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:19:32,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:19:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:19:35,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 16510 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:19:35,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:19:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 30645 backedges. 11038 proven. 0 refuted. 0 times theorem prover too weak. 19607 trivial. 0 not checked. [2022-12-14 08:19:42,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:19:42,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:19:42,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052786297] [2022-12-14 08:19:42,974 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:19:42,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569812969] [2022-12-14 08:19:42,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569812969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:19:42,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:19:42,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:19:42,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632090795] [2022-12-14 08:19:42,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:19:42,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:19:42,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:19:42,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:19:42,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:19:42,976 INFO L87 Difference]: Start difference. First operand 84371 states and 125488 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 2 states have internal predecessors, (213), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2022-12-14 08:19:45,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:51,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:52,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:55,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:19:57,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:02,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:06,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:08,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:09,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:20:09,534 INFO L93 Difference]: Finished difference Result 250552 states and 373126 transitions. [2022-12-14 08:20:09,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:20:09,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 2 states have internal predecessors, (213), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 1257 [2022-12-14 08:20:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:20:10,202 INFO L225 Difference]: With dead ends: 250552 [2022-12-14 08:20:10,202 INFO L226 Difference]: Without dead ends: 166355 [2022-12-14 08:20:10,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1256 GetRequests, 1255 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:20:10,386 INFO L413 NwaCegarLoop]: 4496 mSDtfsCounter, 3788 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3792 SdHoareTripleChecker+Valid, 7999 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:20:10,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3792 Valid, 7999 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 730 Invalid, 7 Unknown, 0 Unchecked, 22.6s Time] [2022-12-14 08:20:10,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166355 states. [2022-12-14 08:20:14,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166355 to 166280. [2022-12-14 08:20:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166280 states, 114592 states have (on average 1.4353445266685283) internal successors, (164479), 117727 states have internal predecessors, (164479), 41117 states have call successors, (41117), 10618 states have call predecessors, (41117), 10570 states have return successors, (41867), 40082 states have call predecessors, (41867), 41115 states have call successors, (41867) [2022-12-14 08:20:15,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166280 states to 166280 states and 247463 transitions. [2022-12-14 08:20:15,380 INFO L78 Accepts]: Start accepts. Automaton has 166280 states and 247463 transitions. Word has length 1257 [2022-12-14 08:20:15,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:20:15,381 INFO L495 AbstractCegarLoop]: Abstraction has 166280 states and 247463 transitions. [2022-12-14 08:20:15,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 2 states have internal predecessors, (213), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2022-12-14 08:20:15,381 INFO L276 IsEmpty]: Start isEmpty. Operand 166280 states and 247463 transitions. [2022-12-14 08:20:15,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2022-12-14 08:20:15,543 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:20:15,543 INFO L195 NwaCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 77, 21, 21, 20, 20, 20, 20, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:20:15,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 08:20:15,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 08:20:15,744 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:20:15,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:20:15,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1967518404, now seen corresponding path program 1 times [2022-12-14 08:20:15,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:20:15,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903508952] [2022-12-14 08:20:15,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:20:15,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:20:16,065 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:20:16,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245441540] [2022-12-14 08:20:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:20:16,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:20:16,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:20:16,066 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:20:16,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 08:20:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:20:18,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 16588 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:20:19,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:20:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 30724 backedges. 11057 proven. 0 refuted. 0 times theorem prover too weak. 19667 trivial. 0 not checked. [2022-12-14 08:20:26,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:20:26,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:20:26,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903508952] [2022-12-14 08:20:26,990 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:20:26,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245441540] [2022-12-14 08:20:26,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245441540] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:20:26,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:20:26,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:20:26,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502081106] [2022-12-14 08:20:26,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:20:26,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:20:26,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:20:26,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:20:26,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:20:26,995 INFO L87 Difference]: Start difference. First operand 166280 states and 247463 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 2 states have internal predecessors, (222), 2 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2022-12-14 08:20:29,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:34,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:36,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:39,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:43,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:46,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:20:48,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:20:48,114 INFO L93 Difference]: Finished difference Result 323194 states and 481591 transitions. [2022-12-14 08:20:48,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:20:48,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 2 states have internal predecessors, (222), 2 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) Word has length 1274 [2022-12-14 08:20:48,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:20:48,648 INFO L225 Difference]: With dead ends: 323194 [2022-12-14 08:20:48,648 INFO L226 Difference]: Without dead ends: 157088 [2022-12-14 08:20:49,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1273 GetRequests, 1272 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:20:49,111 INFO L413 NwaCegarLoop]: 3565 mSDtfsCounter, 3544 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3550 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-12-14 08:20:49,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3550 Valid, 3638 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 355 Invalid, 6 Unknown, 0 Unchecked, 16.4s Time] [2022-12-14 08:20:49,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157088 states. [2022-12-14 08:20:53,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157088 to 157088. [2022-12-14 08:20:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157088 states, 109084 states have (on average 1.439285321403689) internal successors, (157003), 111939 states have internal predecessors, (157003), 37813 states have call successors, (37813), 10238 states have call predecessors, (37813), 10190 states have return successors, (38563), 36866 states have call predecessors, (38563), 37811 states have call successors, (38563) [2022-12-14 08:20:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157088 states to 157088 states and 233379 transitions. [2022-12-14 08:20:54,561 INFO L78 Accepts]: Start accepts. Automaton has 157088 states and 233379 transitions. Word has length 1274 [2022-12-14 08:20:54,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:20:54,562 INFO L495 AbstractCegarLoop]: Abstraction has 157088 states and 233379 transitions. [2022-12-14 08:20:54,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 2 states have internal predecessors, (222), 2 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2022-12-14 08:20:54,563 INFO L276 IsEmpty]: Start isEmpty. Operand 157088 states and 233379 transitions. [2022-12-14 08:20:54,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1283 [2022-12-14 08:20:54,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:20:54,615 INFO L195 NwaCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 77, 21, 21, 20, 20, 20, 20, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:20:54,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 08:20:54,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:20:54,817 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:20:54,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:20:54,819 INFO L85 PathProgramCache]: Analyzing trace with hash 406421795, now seen corresponding path program 1 times [2022-12-14 08:20:54,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:20:54,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168248580] [2022-12-14 08:20:54,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:20:54,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:20:55,306 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:20:55,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629346230] [2022-12-14 08:20:55,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:20:55,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:20:55,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:20:55,308 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:20:55,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 08:20:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:20:58,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 16648 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 08:20:58,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:21:06,641 INFO L134 CoverageAnalysis]: Checked inductivity of 30721 backedges. 11062 proven. 0 refuted. 0 times theorem prover too weak. 19659 trivial. 0 not checked. [2022-12-14 08:21:06,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:21:06,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:21:06,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168248580] [2022-12-14 08:21:06,642 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:21:06,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629346230] [2022-12-14 08:21:06,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629346230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:21:06,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:21:06,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:21:06,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033115947] [2022-12-14 08:21:06,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:21:06,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:21:06,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:21:06,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:21:06,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:21:06,644 INFO L87 Difference]: Start difference. First operand 157088 states and 233379 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 3 states have internal predecessors, (228), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2022-12-14 08:21:08,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:21:19,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:21:21,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:21:24,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:21:33,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:21:41,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:21:43,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:21:45,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:21:45,967 INFO L93 Difference]: Finished difference Result 516023 states and 774569 transitions. [2022-12-14 08:21:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:21:45,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 3 states have internal predecessors, (228), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) Word has length 1282 [2022-12-14 08:21:45,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:21:47,256 INFO L225 Difference]: With dead ends: 516023 [2022-12-14 08:21:47,256 INFO L226 Difference]: Without dead ends: 359109 [2022-12-14 08:21:47,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1281 GetRequests, 1279 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:21:47,762 INFO L413 NwaCegarLoop]: 6845 mSDtfsCounter, 4310 mSDsluCounter, 9409 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4450 SdHoareTripleChecker+Valid, 16254 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:21:47,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4450 Valid, 16254 Invalid, 1519 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1511 Invalid, 7 Unknown, 0 Unchecked, 30.3s Time] [2022-12-14 08:21:48,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359109 states. [2022-12-14 08:21:59,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359109 to 312349. [2022-12-14 08:21:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312349 states, 217029 states have (on average 1.4398536601099392) internal successors, (312490), 222783 states have internal predecessors, (312490), 75093 states have call successors, (75093), 20346 states have call predecessors, (75093), 20226 states have return successors, (76635), 73119 states have call predecessors, (76635), 75091 states have call successors, (76635) [2022-12-14 08:22:00,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312349 states to 312349 states and 464218 transitions. [2022-12-14 08:22:00,826 INFO L78 Accepts]: Start accepts. Automaton has 312349 states and 464218 transitions. Word has length 1282 [2022-12-14 08:22:00,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:22:00,827 INFO L495 AbstractCegarLoop]: Abstraction has 312349 states and 464218 transitions. [2022-12-14 08:22:00,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 3 states have internal predecessors, (228), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2022-12-14 08:22:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 312349 states and 464218 transitions. [2022-12-14 08:22:00,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1285 [2022-12-14 08:22:00,877 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:22:00,878 INFO L195 NwaCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 77, 21, 21, 20, 20, 20, 20, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:22:00,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 08:22:01,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 08:22:01,080 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:22:01,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:22:01,081 INFO L85 PathProgramCache]: Analyzing trace with hash -834145434, now seen corresponding path program 1 times [2022-12-14 08:22:01,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:22:01,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580404468] [2022-12-14 08:22:01,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:22:01,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:22:01,437 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:22:01,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2115618332] [2022-12-14 08:22:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:22:01,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:22:01,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:22:01,438 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:22:01,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 08:22:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:22:04,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 16654 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 08:22:04,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:22:28,661 INFO L134 CoverageAnalysis]: Checked inductivity of 30721 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30721 trivial. 0 not checked. [2022-12-14 08:22:28,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:22:28,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:22:28,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580404468] [2022-12-14 08:22:28,661 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:22:28,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115618332] [2022-12-14 08:22:28,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115618332] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:22:28,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:22:28,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:22:28,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335959134] [2022-12-14 08:22:28,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:22:28,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:22:28,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:22:28,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:22:28,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:22:28,665 INFO L87 Difference]: Start difference. First operand 312349 states and 464218 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 2 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2022-12-14 08:22:30,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:22:39,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:22:41,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:22:45,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:22:49,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:22:55,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:23:02,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:23:04,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:23:09,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:23:09,697 INFO L93 Difference]: Finished difference Result 932769 states and 1388113 transitions. [2022-12-14 08:23:09,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:23:09,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 2 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) Word has length 1284 [2022-12-14 08:23:09,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:23:12,123 INFO L225 Difference]: With dead ends: 932769 [2022-12-14 08:23:12,123 INFO L226 Difference]: Without dead ends: 620594 [2022-12-14 08:23:13,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1283 GetRequests, 1282 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:23:13,134 INFO L413 NwaCegarLoop]: 4193 mSDtfsCounter, 3364 mSDsluCounter, 3301 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 5 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3368 SdHoareTripleChecker+Valid, 7494 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:23:13,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3368 Valid, 7494 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 706 Invalid, 6 Unknown, 0 Unchecked, 22.6s Time] [2022-12-14 08:23:13,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620594 states. [2022-12-14 08:23:35,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620594 to 620267. [2022-12-14 08:23:35,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620267 states, 431307 states have (on average 1.439077037933537) internal successors, (620684), 442783 states have internal predecessors, (620684), 148521 states have call successors, (148521), 40678 states have call predecessors, (148521), 40438 states have return successors, (151607), 144445 states have call predecessors, (151607), 148519 states have call successors, (151607) [2022-12-14 08:23:38,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620267 states to 620267 states and 920812 transitions. [2022-12-14 08:23:38,835 INFO L78 Accepts]: Start accepts. Automaton has 620267 states and 920812 transitions. Word has length 1284 [2022-12-14 08:23:38,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:23:38,836 INFO L495 AbstractCegarLoop]: Abstraction has 620267 states and 920812 transitions. [2022-12-14 08:23:38,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 2 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2022-12-14 08:23:38,836 INFO L276 IsEmpty]: Start isEmpty. Operand 620267 states and 920812 transitions. [2022-12-14 08:23:38,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1320 [2022-12-14 08:23:38,987 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:23:38,987 INFO L195 NwaCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 77, 21, 21, 20, 20, 20, 20, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:23:39,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 08:23:39,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 08:23:39,189 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:23:39,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:23:39,191 INFO L85 PathProgramCache]: Analyzing trace with hash 430905784, now seen corresponding path program 1 times [2022-12-14 08:23:39,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:23:39,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013478067] [2022-12-14 08:23:39,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:23:39,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:23:39,543 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:23:39,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49445149] [2022-12-14 08:23:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:23:39,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:23:39,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:23:39,544 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:23:39,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62032658-31de-4902-94ee-e6cf55bc4fa2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 08:24:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:24:05,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 16889 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 08:24:05,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:24:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 30773 backedges. 11156 proven. 0 refuted. 0 times theorem prover too weak. 19617 trivial. 0 not checked. [2022-12-14 08:24:18,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:24:18,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:24:18,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013478067] [2022-12-14 08:24:18,365 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:24:18,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49445149] [2022-12-14 08:24:18,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49445149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:24:18,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:24:18,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 08:24:18,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941162783] [2022-12-14 08:24:18,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:24:18,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 08:24:18,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:24:18,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 08:24:18,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:24:18,367 INFO L87 Difference]: Start difference. First operand 620267 states and 920812 transitions. Second operand has 7 states, 5 states have (on average 45.8) internal successors, (229), 6 states have internal predecessors, (229), 3 states have call successors, (130), 2 states have call predecessors, (130), 4 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2022-12-14 08:24:20,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:24:49,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:24:58,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:25:00,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:25:15,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:25:17,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:25:19,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:25:21,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:25:28,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:25:32,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:25:40,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:25:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:25:48,700 INFO L93 Difference]: Finished difference Result 1240250 states and 1875702 transitions. [2022-12-14 08:25:48,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:25:48,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 45.8) internal successors, (229), 6 states have internal predecessors, (229), 3 states have call successors, (130), 2 states have call predecessors, (130), 4 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 1319 [2022-12-14 08:25:48,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:25:51,274 INFO L225 Difference]: With dead ends: 1240250 [2022-12-14 08:25:51,274 INFO L226 Difference]: Without dead ends: 620108 [2022-12-14 08:25:53,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1320 GetRequests, 1313 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:25:53,382 INFO L413 NwaCegarLoop]: 3532 mSDtfsCounter, 3633 mSDsluCounter, 8310 mSDsCounter, 0 mSdLazyCounter, 7501 mSolverCounterSat, 48 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3668 SdHoareTripleChecker+Valid, 11842 SdHoareTripleChecker+Invalid, 7560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 7501 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:25:53,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3668 Valid, 11842 Invalid, 7560 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 7501 Invalid, 11 Unknown, 0 Unchecked, 64.2s Time] [2022-12-14 08:25:53,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620108 states.