Trace number 310858

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
SAT7 2007-02-08UNSAT 43.4794 43.4938

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S846304296-04-UNSAT.cnf
MD5SUM6c6574c6e53b7d1ef3d1cc6ac9e5dec3
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.15561
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c Starting solver ...
0.00/0.02	c Restarting after 101 conflicts
0.00/0.04	c Restarting after 252 conflicts
0.00/0.06	c Restarting after 477 conflicts
0.00/0.10	c Restarting after 819 conflicts
0.10/0.16	c Restarting after 1325 conflicts
0.20/0.25	c Restarting after 2085 conflicts
0.30/0.40	c Restarting after 3225 conflicts
0.61/0.62	c Restarting after 4933 conflicts
0.92/0.98	c Restarting after 7496 conflicts
1.43/1.51	c Restarting after 11340 conflicts
2.25/2.34	c Restarting after 17106 conflicts
3.58/3.63	c Restarting after 25755 conflicts
5.52/5.61	c Restarting after 38729 conflicts
8.60/8.66	c Restarting after 58190 conflicts
13.30/13.37	c Restarting after 87382 conflicts
20.37/20.47	c Restarting after 131172 conflicts
31.63/31.74	c Restarting after 196857 conflicts
43.40/43.49	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node65/watcher-310858-1172562331 -o ROOT/results/node65/solver-310858-1172562331 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310858-1172562331/sat7_bin /tmp/evaluation/310858-1172562331/instance-310858-1172562331.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 0.99 0.99 3/64 23943
/proc/meminfo: memFree=1827456/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=1256 CPUtime=0
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 164 0 0 0 0 0 0 0 18 0 1 0 276190673 1286144 147 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134547059 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 314 147 87 220 0 91 0

[startup+0.107422 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 23943
/proc/meminfo: memFree=1827456/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=1660 CPUtime=0.1
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 266 0 0 0 10 0 0 0 18 0 1 0 276190673 1699840 249 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532333 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 415 249 95 220 0 192 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1660

[startup+0.515489 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 23943
/proc/meminfo: memFree=1827456/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=2176 CPUtime=0.51
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 342 0 0 0 51 0 0 0 22 0 1 0 276190673 2228224 325 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 544 325 95 220 0 321 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2176

[startup+1.33562 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1826424/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=2176 CPUtime=1.33
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 377 0 0 0 133 0 0 0 25 0 1 0 276190673 2228224 360 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134528674 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 544 360 95 220 0 321 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2176

[startup+2.97389 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1826168/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3204 CPUtime=2.97
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 422 0 0 0 297 0 0 0 25 0 1 0 276190673 3280896 405 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532534 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 801 405 95 220 0 578 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 3204

[startup+6.25043 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1825848/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3204 CPUtime=6.24
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 472 0 0 0 624 0 0 0 25 0 1 0 276190673 3280896 455 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532333 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 801 455 95 220 0 578 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 3204

[startup+12.7045 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1825472/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3336 CPUtime=12.69
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 545 0 0 0 1269 0 0 0 25 0 1 0 276190673 3416064 528 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532345 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 834 528 95 220 0 611 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3336

[startup+25.5046 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1825088/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3468 CPUtime=25.49
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 643 0 0 0 2549 0 0 0 25 0 1 0 276190673 3551232 626 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134533279 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 867 626 95 220 0 644 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3468

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

[startup+26.2227 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1825088/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3468 CPUtime=26.21
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 644 0 0 0 2621 0 0 0 25 0 1 0 276190673 3551232 627 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532433 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 867 627 95 220 0 644 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 3468

[startup+32.7788 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1824960/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3468 CPUtime=32.76
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 671 0 0 0 3276 0 0 0 25 0 1 0 276190673 3551232 654 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 867 654 95 220 0 644 0
Current children cumulated CPU time (s) 32.76
Current children cumulated vsize (KiB) 3468

[startup+39.3309 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1824832/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3600 CPUtime=39.31
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 711 0 0 0 3931 0 0 0 25 0 1 0 276190673 3686400 694 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134535949 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 900 694 95 220 0 677 0
Current children cumulated CPU time (s) 39.31
Current children cumulated vsize (KiB) 3600

[startup+40.9711 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1824768/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3600 CPUtime=40.95
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 716 0 0 0 4095 0 0 0 25 0 1 0 276190673 3686400 699 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532559 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 900 699 95 220 0 677 0
Current children cumulated CPU time (s) 40.95
Current children cumulated vsize (KiB) 3600

[startup+42.6074 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1824832/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3600 CPUtime=42.58
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 719 0 0 0 4258 0 0 0 25 0 1 0 276190673 3686400 702 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134536262 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 900 702 95 220 0 677 0
Current children cumulated CPU time (s) 42.58
Current children cumulated vsize (KiB) 3600

[startup+43.0205 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1824832/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3600 CPUtime=43
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 721 0 0 0 4300 0 0 0 25 0 1 0 276190673 3686400 704 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532381 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 900 704 95 220 0 677 0
Current children cumulated CPU time (s) 43
Current children cumulated vsize (KiB) 3600

[startup+43.4285 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 23944
/proc/meminfo: memFree=1824832/2055920 swapFree=4172316/4192956
[pid=23943] ppid=23941 vsize=3600 CPUtime=43.4
/proc/23943/stat : 23943 (sat7_bin) R 23941 23943 23197 0 -1 4194304 721 0 0 0 4340 0 0 0 25 0 1 0 276190673 3686400 704 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532433 0 0 4096 0 0 0 0 17 1 0 0
/proc/23943/statm: 900 704 95 220 0 677 0
Current children cumulated CPU time (s) 43.4
Current children cumulated vsize (KiB) 3600

Child status: 20
Real time (s): 43.4938
CPU time (s): 43.4794
CPU user time (s): 43.4734
CPU system time (s): 0.005999
CPU usage (%): 99.9669
Max. virtual memory (cumulated for all children) (KiB): 3600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 43.4734
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 721
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= 7
involuntary context switches= 33

runsolver used 0.029995 second user time and 0.096985 second system time

The end

Launcher Data (download as text)

Begin job on node65 on Tue Feb 27 07:45:31 UTC 2007

IDJOB= 310858
IDBENCH= 20298
IDSOLVER= 101
FILE ID= node65/310858-1172562331

PBS_JOBID= 3971881

Free space on /tmp= 66560 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S846304296-04-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310858-1172562331/sat7_bin /tmp/evaluation/310858-1172562331/instance-310858-1172562331.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node65/watcher-310858-1172562331 -o ROOT/results/node65/solver-310858-1172562331 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310858-1172562331/sat7_bin /tmp/evaluation/310858-1172562331/instance-310858-1172562331.cnf            

META MD5SUM SOLVER= 499b432f7af158d8586c91b2e490220f
MD5SUM BENCH=  6c6574c6e53b7d1ef3d1cc6ac9e5dec3

RANDOM SEED= 373000398

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node65.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		: 3000.259
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		: 3000.259
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:       1827928 kB
Buffers:         29928 kB
Cached:         138680 kB
SwapCached:      14924 kB
Active:          79928 kB
Inactive:       110324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1827928 kB
SwapTotal:     4192956 kB
SwapFree:      4172316 kB
Dirty:            1196 kB
Writeback:           0 kB
Mapped:          15396 kB
Slab:            23740 kB
Committed_AS:   653152 kB
PageTables:       1456 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= 66560 MiB

End job on node65 on Tue Feb 27 07:46:15 UTC 2007