Trace number 319649

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) 5.41 3.2265

General information on the benchmark

Nameindustrial/
crypto/mizh-md5-47-5.cnf
MD5SUM361a244b850a858ed2e51ec140de6356
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark110.43
Satisfiable
(Un)Satisfiability was proved
Number of variables65604
Number of clauses273520
Sum of the clauses size814946
Maximum clause length4
Minimum clause length1
Number of clauses of size 1199
Number of clauses of size 2118258
Number of clauses of size 342021
Number of clauses of size 4113042
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/319649-1173034278/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.49/0.53	c Input file : '/tmp/evaluation/319649-1173034278/instance-319649-1173034278.cnf'
0.49/0.53	c [#vars: 65604, #clauses: 273520 , (1-4)-CNF]
0.79/0.80	c unit clauses propagate before processing (#clause: 233843)
0.79/0.80	c estimated distribution: 8 tasks
0.89/0.91	c [PID]: 32358 32359 32360 32361 32362 32363 32364
4.18/2.69	c [PID]: 32365
4.18/2.69	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/node16/watcher-319649-1173034278 -o ROOT/results/node16/solver-319649-1173034278 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/319649-1173034278/kcnfs-smp /tmp/evaluation/319649-1173034278/instance-319649-1173034278.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: 0.92 0.98 0.93 3/77 32356
/proc/meminfo: memFree=1646176/2055920 swapFree=4192812/4192956
[pid=32356] ppid=32354 vsize=180916 CPUtime=0
/proc/32356/stat : 32356 (kcnfs-smp) R 32354 32356 31814 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 323382134 185257984 114 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/32356/statm: 45229 115 48 160 0 45067 0

[startup+0.0588149 s]
/proc/loadavg: 0.92 0.98 0.93 3/77 32356
/proc/meminfo: memFree=1646176/2055920 swapFree=4192812/4192956
[pid=32356] ppid=32354 vsize=183952 CPUtime=0.05
/proc/32356/stat : 32356 (kcnfs-smp) R 32354 32356 31814 0 -1 4194304 888 0 0 0 4 1 0 0 18 0 1 0 323382134 188366848 873 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/32356/statm: 45988 874 48 160 0 45826 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 183952

[startup+0.10181 s]
/proc/loadavg: 0.92 0.98 0.93 3/77 32356
/proc/meminfo: memFree=1646176/2055920 swapFree=4192812/4192956
[pid=32356] ppid=32354 vsize=186328 CPUtime=0.09
/proc/32356/stat : 32356 (kcnfs-smp) R 32354 32356 31814 0 -1 4194304 1460 0 0 0 8 1 0 0 18 0 1 0 323382134 190799872 1445 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/32356/statm: 46582 1445 48 160 0 46420 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186328

[startup+0.301787 s]
/proc/loadavg: 0.92 0.98 0.93 3/77 32356
/proc/meminfo: memFree=1646176/2055920 swapFree=4192812/4192956
[pid=32356] ppid=32354 vsize=196756 CPUtime=0.29
/proc/32356/stat : 32356 (kcnfs-smp) R 32354 32356 31814 0 -1 4194304 4084 0 0 0 26 3 0 0 19 0 1 0 323382134 201478144 4069 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/32356/statm: 49189 4070 48 160 0 49027 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196756

[startup+0.701738 s]
/proc/loadavg: 0.92 0.98 0.93 3/77 32356
/proc/meminfo: memFree=1646176/2055920 swapFree=4192812/4192956
[pid=32356] ppid=32354 vsize=223044 CPUtime=0.69
/proc/32356/stat : 32356 (kcnfs-smp) R 32354 32356 31814 0 -1 4194304 17431 0 0 0 62 7 0 0 22 0 1 0 323382134 228397056 17415 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134542374 0 0 4096 0 0 0 0 17 1 0 0
/proc/32356/statm: 55761 17415 51 160 0 55599 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 223044

[startup+1.50166 s]
/proc/loadavg: 0.92 0.98 0.93 4/80 32359
/proc/meminfo: memFree=1530248/2055920 swapFree=4192812/4192956
[pid=32356] ppid=32354 vsize=222524 CPUtime=1.11
/proc/32356/stat : 32356 (kcnfs-smp) R 32354 32356 31814 0 -1 4194304 35621 0 0 0 93 18 0 0 25 0 1 0 323382134 227864576 23396 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 1 0 0
/proc/32356/statm: 55631 23396 66 160 0 55469 0
[pid=32358] ppid=32356 vsize=222524 CPUtime=0.49
/proc/32358/stat : 32358 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3129 0 0 0 48 1 0 0 25 0 1 0 323382224 227864576 23396 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 2 0 0 0 17 1 0 0
/proc/32358/statm: 55631 23396 65 160 0 55469 0
[pid=32359] ppid=32356 vsize=222524 CPUtime=0.3
/proc/32359/stat : 32359 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3159 0 0 0 28 2 0 0 25 0 1 0 323382229 227864576 23400 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720251 0 0 4096 0 0 0 0 17 0 0 0
/proc/32359/statm: 55631 23400 66 160 0 55469 0
Current children cumulated CPU time (s) 1.9
Current children cumulated vsize (KiB) 667572

[startup+3.10247 s]
/proc/loadavg: 0.92 0.98 0.93 8/84 32363
/proc/meminfo: memFree=1474848/2055920 swapFree=4192812/4192956
[pid=32356] ppid=32354 vsize=222524 CPUtime=1.37
/proc/32356/stat : 32356 (kcnfs-smp) S 32354 32356 31814 0 -1 4194304 44974 0 0 0 112 25 0 0 25 0 1 0 323382134 227864576 23398 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/32356/statm: 55631 23398 66 160 0 55469 0
[pid=32358] ppid=32356 vsize=222524 CPUtime=0.91
/proc/32358/stat : 32358 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3367 0 0 0 90 1 0 0 25 0 1 0 323382224 227864576 23407 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 2 0 0 0 17 0 0 0
/proc/32358/statm: 55631 23407 67 160 0 55469 0
[pid=32359] ppid=32356 vsize=222524 CPUtime=0.82
/proc/32359/stat : 32359 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3178 0 0 0 80 2 0 0 25 0 1 0 323382229 227864576 23401 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 0 0 0
/proc/32359/statm: 55631 23401 66 160 0 55469 0
[pid=32360] ppid=32356 vsize=222524 CPUtime=0.72
/proc/32360/stat : 32360 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3193 0 0 0 70 2 0 0 25 0 1 0 323382251 227864576 23405 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720448 0 0 4096 2 0 0 0 17 0 0 0
/proc/32360/statm: 55631 23405 67 160 0 55469 0
[pid=32361] ppid=32356 vsize=222524 CPUtime=0.53
/proc/32361/stat : 32361 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3163 0 0 0 51 2 0 0 25 0 1 0 323382268 227864576 23401 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 0 0 0 0 17 1 0 0
/proc/32361/statm: 55631 23401 66 160 0 55469 0
[pid=32362] ppid=32356 vsize=222524 CPUtime=0.38
/proc/32362/stat : 32362 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3129 0 0 0 36 2 0 0 25 0 1 0 323382304 227864576 23399 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 1 0 0
/proc/32362/statm: 55631 23399 66 160 0 55469 0
[pid=32363] ppid=32356 vsize=222524 CPUtime=0.22
/proc/32363/stat : 32363 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3152 0 0 0 20 2 0 0 25 0 1 0 323382339 227864576 23399 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720251 0 0 4096 0 0 0 0 17 1 0 0
/proc/32363/statm: 55631 23399 66 160 0 55469 0
Current children cumulated CPU time (s) 4.95
Current children cumulated vsize (KiB) 1557668



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.20246 s]
/proc/loadavg: 1.49 1.10 0.97 9/86 32365
/proc/meminfo: memFree=1447632/2055920 swapFree=4192812/4192956
[pid=32356] ppid=32354 vsize=222524 CPUtime=1.37
/proc/32356/stat : 32356 (kcnfs-smp) S 32354 32356 31814 0 -1 4194304 44974 0 0 0 112 25 0 0 25 0 1 0 323382134 227864576 23398 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/32356/statm: 55631 23398 66 160 0 55469 0
[pid=32358] ppid=32356 vsize=222524 CPUtime=1
/proc/32358/stat : 32358 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3368 0 0 0 99 1 0 0 25 0 1 0 323382224 227864576 23408 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 0 0 0
/proc/32358/statm: 55631 23408 67 160 0 55469 0
[pid=32359] ppid=32356 vsize=222524 CPUtime=0.84
/proc/32359/stat : 32359 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3178 0 0 0 82 2 0 0 25 0 1 0 323382229 227864576 23401 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720238 0 0 4096 0 0 0 0 17 0 0 0
/proc/32359/statm: 55631 23401 66 160 0 55469 0
[pid=32360] ppid=32356 vsize=222524 CPUtime=0.72
/proc/32360/stat : 32360 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3193 0 0 0 70 2 0 0 25 0 1 0 323382251 227864576 23405 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720448 0 0 4096 2 0 0 0 17 0 0 0
/proc/32360/statm: 55631 23405 67 160 0 55469 0
[pid=32361] ppid=32356 vsize=222524 CPUtime=0.53
/proc/32361/stat : 32361 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3163 0 0 0 51 2 0 0 25 0 1 0 323382268 227864576 23401 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 0 0 0 0 17 1 0 0
/proc/32361/statm: 55631 23401 66 160 0 55469 0
[pid=32362] ppid=32356 vsize=222524 CPUtime=0.4
/proc/32362/stat : 32362 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3129 0 0 0 38 2 0 0 25 0 1 0 323382304 227864576 23399 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 2 0 0 0 17 1 0 0
/proc/32362/statm: 55631 23399 66 160 0 55469 0
[pid=32363] ppid=32356 vsize=222524 CPUtime=0.31
/proc/32363/stat : 32363 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3171 0 0 0 29 2 0 0 25 0 1 0 323382339 227864576 23399 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720495 0 0 4096 0 0 0 0 17 1 0 0
/proc/32363/statm: 55631 23399 66 160 0 55469 0
[pid=32364] ppid=32356 vsize=222524 CPUtime=0.11
/proc/32364/stat : 32364 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3126 0 0 0 10 1 0 0 25 0 1 0 323382380 227864576 23398 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720529 0 0 4096 2 0 0 0 17 1 0 0
/proc/32364/statm: 55631 23398 66 160 0 55469 0
[pid=32365] ppid=32356 vsize=222524 CPUtime=0.13
/proc/32365/stat : 32365 (kcnfs-smp) R 32356 32356 31814 0 -1 4194368 3159 0 0 0 10 3 0 0 25 0 1 0 323382399 227864576 23398 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 0 0 0
/proc/32365/statm: 55631 23398 66 160 0 55469 0
Current children cumulated CPU time (s) 5.41
Current children cumulated vsize (KiB) 2002716

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 32356 and gives childrusage.ru_utime.tv_sec=1 childrusage.ru_utime.tv_usec=121829 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=259960
CPU time returned by wait4() is 1.38179
while last known CPU time is 5.41

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

Real time (s): 3.2265
CPU time (s): 5.41
CPU user time (s): 5.01
CPU system time (s): 0.4
CPU usage (%): 167.674
Max. virtual memory (cumulated for all children) (KiB): 2002716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.12183
system time used= 0.25996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 44974
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= 10
involuntary context switches= 31

runsolver used 0.012998 second user time and 0.015997 second system time

The end

Launcher Data (download as text)

Begin job on node16 on Sun Mar  4 18:51:18 UTC 2007

IDJOB= 319649
IDBENCH= 20484
IDSOLVER= 112
FILE ID= node16/319649-1173034278

PBS_JOBID= 4012237

Free space on /tmp= 66498 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/crypto/mizh-md5-47-5.cnf
COMMAND LINE= /tmp/evaluation/319649-1173034278/kcnfs-smp /tmp/evaluation/319649-1173034278/instance-319649-1173034278.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-319649-1173034278 -o ROOT/results/node16/solver-319649-1173034278 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/319649-1173034278/kcnfs-smp /tmp/evaluation/319649-1173034278/instance-319649-1173034278.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  361a244b850a858ed2e51ec140de6356

RANDOM SEED= 534106774

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node16.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		: 3000.281
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		: 3000.281
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:       1646648 kB
Buffers:         36244 kB
Cached:         260440 kB
SwapCached:          0 kB
Active:         214932 kB
Inactive:       138656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1646648 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            8520 kB
Writeback:           0 kB
Mapped:          75812 kB
Slab:            41312 kB
Committed_AS:  1269524 kB
PageTables:       1724 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= 66498 MiB

End job on node16 on Sun Mar  4 18:51:23 UTC 2007