Trace number 320305

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
KCNFS SMP? (MO) 31.07 16.4283

General information on the benchmark

Nameindustrial/manolios/
manol-pipe-c6nidw_i.cnf
MD5SUM15c4413e436aecbd4fcb1d7037e18abf
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark74.3737
Satisfiable
(Un)Satisfiability was proved
Number of variables95863
Number of clauses283363
Sum of the clauses size661179
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2188908
Number of clauses of size 394454
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/320305-1173043835/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.39/0.47	c Input file : '/tmp/evaluation/320305-1173043835/instance-320305-1173043835.cnf'
0.39/0.47	c [#vars: 95863, #clauses: 283363 , (1-3)-CNF]
0.69/0.71	c unit clauses propagate before processing (#clause: 283360)
0.69/0.71	c estimated distribution: 8 tasks
1.59/1.61	c <1265> [PID]: 1267 1268 1269 1270 1271 1272 1273
30.86/16.39	c <1265> [PID]: 1274
30.86/16.39	c real distribution: 8 tasks

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node44/watcher-320305-1173043835 -o ROOT/results/node44/solver-320305-1173043835 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320305-1173043835/kcnfs-smp /tmp/evaluation/320305-1173043835/instance-320305-1173043835.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 1265
/proc/meminfo: memFree=1015304/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=180916 CPUtime=0
/proc/1265/stat : 1265 (kcnfs-smp) R 1263 1265 1057 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 324339679 185257984 114 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/1265/statm: 45229 114 48 160 0 45067 0

[startup+0.0535219 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 1265
/proc/meminfo: memFree=1015304/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=183688 CPUtime=0.04
/proc/1265/stat : 1265 (kcnfs-smp) R 1263 1265 1057 0 -1 4194304 811 0 0 0 4 0 0 0 18 0 1 0 324339679 188096512 796 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/1265/statm: 45922 796 48 160 0 45760 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 183688

[startup+0.10153 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 1265
/proc/meminfo: memFree=1015304/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=186196 CPUtime=0.09
/proc/1265/stat : 1265 (kcnfs-smp) R 1263 1265 1057 0 -1 4194304 1439 0 0 0 9 0 0 0 18 0 1 0 324339679 190664704 1424 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/1265/statm: 46549 1425 48 160 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186196

[startup+0.301566 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 1265
/proc/meminfo: memFree=1015304/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=196624 CPUtime=0.29
/proc/1265/stat : 1265 (kcnfs-smp) R 1263 1265 1057 0 -1 4194304 4062 0 0 0 28 1 0 0 19 0 1 0 324339679 201342976 4047 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/1265/statm: 49156 4048 48 160 0 48994 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196624

[startup+0.701641 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 1265
/proc/meminfo: memFree=1015304/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=218360 CPUtime=0.69
/proc/1265/stat : 1265 (kcnfs-smp) R 1263 1265 1057 0 -1 4194304 16876 0 0 0 63 6 0 0 22 0 1 0 324339679 223600640 16860 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134818902 0 0 4096 0 0 0 0 17 1 0 0
/proc/1265/statm: 54590 16860 51 160 0 54428 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 218360

[startup+1.50179 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 1266
/proc/meminfo: memFree=947136/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=218076 CPUtime=1.49
/proc/1265/stat : 1265 (kcnfs-smp) R 1263 1265 1057 0 -1 4194304 17333 0 0 0 143 6 0 0 25 0 1 0 324339679 223309824 17085 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134631974 0 0 4096 0 0 0 0 17 1 0 0
/proc/1265/statm: 54519 17085 65 160 0 54357 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 218076

[startup+3.10209 s]
/proc/loadavg: 1.00 1.00 1.06 4/67 1268
/proc/meminfo: memFree=939376/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=218076 CPUtime=2.33
/proc/1265/stat : 1265 (kcnfs-smp) R 1263 1265 1057 0 -1 4194304 18668 0 0 0 226 7 0 0 25 0 1 0 324339679 223309824 17108 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134639287 0 0 4096 0 0 0 0 17 0 0 0
/proc/1265/statm: 54519 17108 66 160 0 54357 0
[pid=1267] ppid=1265 vsize=218076 CPUtime=1.48
/proc/1267/stat : 1267 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 920 0 0 0 148 0 0 0 25 0 1 0 324339840 223309824 17127 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567505 0 0 4096 2 0 0 0 17 1 0 0
/proc/1267/statm: 54519 17127 65 160 0 54357 0
[pid=1268] ppid=1265 vsize=218076 CPUtime=0.74
/proc/1268/stat : 1268 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 902 0 0 0 74 0 0 0 25 0 1 0 324339841 223309824 17134 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567202 0 0 4096 0 0 0 0 17 0 0 0
/proc/1268/statm: 54519 17134 65 160 0 54357 0
Current children cumulated CPU time (s) 4.55
Current children cumulated vsize (KiB) 654228

[startup+6.30167 s]
/proc/loadavg: 1.16 1.04 1.07 4/67 1268
/proc/meminfo: memFree=938288/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=218076 CPUtime=3.93
/proc/1265/stat : 1265 (kcnfs-smp) R 1263 1265 1057 0 -1 4194304 18686 0 0 0 386 7 0 0 25 0 1 0 324339679 223309824 17124 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572697 0 0 4096 0 0 0 0 17 0 0 0
/proc/1265/statm: 54519 17124 66 160 0 54357 0
[pid=1267] ppid=1265 vsize=218076 CPUtime=4.68
/proc/1267/stat : 1267 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 968 0 0 0 467 1 0 0 25 0 1 0 324339840 223309824 17173 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572846 0 0 4096 2 0 0 0 17 1 0 0
/proc/1267/statm: 54519 17173 65 160 0 54357 0
[pid=1268] ppid=1265 vsize=218076 CPUtime=2.33
/proc/1268/stat : 1268 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 925 0 0 0 233 0 0 0 25 0 1 0 324339841 223309824 17154 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567202 0 0 4096 0 0 0 0 17 0 0 0
/proc/1268/statm: 54519 17154 65 160 0 54357 0
Current children cumulated CPU time (s) 10.94
Current children cumulated vsize (KiB) 654228

[startup+12.7028 s]
/proc/loadavg: 1.31 1.07 1.08 4/67 1268
/proc/meminfo: memFree=938032/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=218076 CPUtime=6.97
/proc/1265/stat : 1265 (kcnfs-smp) R 1263 1265 1057 0 -1 4194304 19811 0 0 0 689 8 0 0 25 0 1 0 324339679 223309824 17191 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567570 0 0 4096 0 0 0 0 17 0 0 0
/proc/1265/statm: 54519 17191 67 160 0 54357 0
[pid=1267] ppid=1265 vsize=218076 CPUtime=10.87
/proc/1267/stat : 1267 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 991 0 0 0 1086 1 0 0 25 0 1 0 324339840 223309824 17195 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567241 0 0 4096 2 0 0 0 17 1 0 0
/proc/1267/statm: 54519 17195 65 160 0 54357 0
[pid=1268] ppid=1265 vsize=218076 CPUtime=5.51
/proc/1268/stat : 1268 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 937 0 0 0 551 0 0 0 25 0 1 0 324339841 223309824 17163 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567193 0 0 4096 0 0 0 0 17 1 0 0
/proc/1268/statm: 54519 17163 65 160 0 54357 0
Current children cumulated CPU time (s) 23.35
Current children cumulated vsize (KiB) 654228



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+16.4025 s]
/proc/loadavg: 1.60 1.13 1.10 9/73 1274
/proc/meminfo: memFree=917376/2055920 swapFree=4183412/4192956
[pid=1265] ppid=1263 vsize=218076 CPUtime=7.96
/proc/1265/stat : 1265 (kcnfs-smp) S 1263 1265 1057 0 -1 4194304 21672 0 0 0 787 9 0 0 25 0 1 0 324339679 223309824 17191 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1265/statm: 54519 17191 67 160 0 54357 0
[pid=1267] ppid=1265 vsize=218076 CPUtime=12.54
/proc/1267/stat : 1267 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 996 0 0 0 1253 1 0 0 25 0 1 0 324339840 223309824 17199 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567577 0 0 4096 2 0 0 0 17 1 0 0
/proc/1267/statm: 54519 17199 65 160 0 54357 0
[pid=1268] ppid=1265 vsize=218076 CPUtime=7.21
/proc/1268/stat : 1268 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 941 0 0 0 721 0 0 0 25 0 1 0 324339841 223309824 17167 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567202 0 0 4096 0 0 0 0 17 1 0 0
/proc/1268/statm: 54519 17167 65 160 0 54357 0
[pid=1269] ppid=1265 vsize=218076 CPUtime=1.44
/proc/1269/stat : 1269 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 929 0 0 0 144 0 0 0 25 0 1 0 324340888 223309824 17208 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567357 0 0 4096 2 0 0 0 17 1 0 0
/proc/1269/statm: 54519 17208 67 160 0 54357 0
[pid=1270] ppid=1265 vsize=218076 CPUtime=1.25
/proc/1270/stat : 1270 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 915 0 0 0 125 0 0 0 25 0 1 0 324340909 223309824 17216 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572912 0 0 4096 0 0 0 0 17 0 0 0
/proc/1270/statm: 54519 17216 67 160 0 54357 0
[pid=1271] ppid=1265 vsize=218076 CPUtime=0.31
/proc/1271/stat : 1271 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 723 0 0 0 31 0 0 0 25 0 1 0 324341187 223309824 17193 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567568 0 0 4096 2 0 0 0 17 0 0 0
/proc/1271/statm: 54519 17193 67 160 0 54357 0
[pid=1272] ppid=1265 vsize=218076 CPUtime=0.3
/proc/1272/stat : 1272 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 760 0 0 0 30 0 0 0 25 0 1 0 324341189 223309824 17192 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572090 0 0 4096 0 0 0 0 17 0 0 0
/proc/1272/statm: 54519 17192 67 160 0 54357 0
[pid=1273] ppid=1265 vsize=218076 CPUtime=0.04
/proc/1273/stat : 1273 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 558 0 0 0 4 0 0 0 25 0 1 0 324341311 223309824 17191 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134577457 0 0 4096 2 0 0 0 17 0 0 0
/proc/1273/statm: 54519 17191 67 160 0 54357 0
[pid=1274] ppid=1265 vsize=218076 CPUtime=0.02
/proc/1274/stat : 1274 (kcnfs-smp) R 1265 1265 1057 0 -1 4194368 564 0 0 0 2 0 0 0 25 0 1 0 324341316 223309824 17191 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567202 0 0 4096 0 0 0 0 17 0 0 0
/proc/1274/statm: 54519 17191 67 160 0 54357 0
Current children cumulated CPU time (s) 31.07
Current children cumulated vsize (KiB) 1962684

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Solver just ended. Dumping a history of the last processes samples

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 1265 and gives childrusage.ru_utime.tv_sec=7 childrusage.ru_utime.tv_usec=873803 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=101984
CPU time returned by wait4() is 7.97579
while last known CPU time is 31.07

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 16.4283
CPU time (s): 31.07
CPU user time (s): 30.97
CPU system time (s): 0.1
CPU usage (%): 189.125
Max. virtual memory (cumulated for all children) (KiB): 1962684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.8738
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21672
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 159

runsolver used 0.016997 second user time and 0.057991 second system time

The end

Launcher Data (download as text)

Begin job on node44 on Sun Mar  4 21:30:35 UTC 2007

IDJOB= 320305
IDBENCH= 20500
IDSOLVER= 112
FILE ID= node44/320305-1173043835

PBS_JOBID= 4012489

Free space on /tmp= 66552 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/manolios/manol-pipe-c6nidw_i.cnf
COMMAND LINE= /tmp/evaluation/320305-1173043835/kcnfs-smp /tmp/evaluation/320305-1173043835/instance-320305-1173043835.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-320305-1173043835 -o ROOT/results/node44/solver-320305-1173043835 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320305-1173043835/kcnfs-smp /tmp/evaluation/320305-1173043835/instance-320305-1173043835.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  15c4413e436aecbd4fcb1d7037e18abf

RANDOM SEED= 420493797

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node44.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.261
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.261
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1015712 kB
Buffers:         40332 kB
Cached:         927008 kB
SwapCached:       3700 kB
Active:         771716 kB
Inactive:       205400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1015712 kB
SwapTotal:     4192956 kB
SwapFree:      4183412 kB
Dirty:            7876 kB
Writeback:           0 kB
Mapped:          15504 kB
Slab:            49060 kB
Committed_AS:   671492 kB
PageTables:       1396 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66552 MiB

End job on node44 on Sun Mar  4 21:30:54 UTC 2007