Trace number 427036

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 42.9165 42.9299

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 benchmark9.96448
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
0.03/0.04	c Restarting after 252 conflicts
0.03/0.06	c Restarting after 477 conflicts
0.10/0.10	c Restarting after 819 conflicts
0.10/0.16	c Restarting after 1325 conflicts
0.20/0.25	c Restarting after 2085 conflicts
0.39/0.40	c Restarting after 3225 conflicts
0.59/0.62	c Restarting after 4933 conflicts
0.89/0.98	c Restarting after 7496 conflicts
1.49/1.51	c Restarting after 11340 conflicts
2.29/2.34	c Restarting after 17106 conflicts
3.59/3.64	c Restarting after 25755 conflicts
5.59/5.62	c Restarting after 38729 conflicts
8.59/8.63	c Restarting after 58190 conflicts
13.29/13.30	c Restarting after 87382 conflicts
20.29/20.31	c Restarting after 131172 conflicts
31.39/31.42	c Restarting after 196857 conflicts
42.88/42.92	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node54/watcher-427036-1177831535 -o ROOT/results/node54/solver-427036-1177831535 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/427036-1177831535/sat7_bin /tmp/evaluation/427036-1177831535/instance-427036-1177831535.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 1.23 1.80 1.84 3/66 16331
/proc/meminfo: memFree=1397816/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=1256 CPUtime=0
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 164 0 0 0 0 0 0 0 18 0 1 0 230527993 1286144 148 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134611768 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 314 148 87 220 0 91 0

[startup+0.036981 s]
/proc/loadavg: 1.23 1.80 1.84 3/66 16331
/proc/meminfo: memFree=1397816/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=1660 CPUtime=0.03
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 243 0 0 0 3 0 0 0 18 0 1 0 230527993 1699840 227 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134528685 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 415 227 95 220 0 192 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1660

[startup+0.101989 s]
/proc/loadavg: 1.23 1.80 1.84 3/66 16331
/proc/meminfo: memFree=1397816/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=1660 CPUtime=0.1
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 263 0 0 0 10 0 0 0 18 0 1 0 230527993 1699840 247 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134579053 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 415 247 95 220 0 192 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1660

[startup+0.302015 s]
/proc/loadavg: 1.23 1.80 1.84 3/66 16331
/proc/meminfo: memFree=1397816/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=2176 CPUtime=0.3
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 318 0 0 0 30 0 0 0 19 0 1 0 230527993 2228224 302 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532664 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 544 302 95 220 0 321 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2176

[startup+0.701065 s]
/proc/loadavg: 1.23 1.80 1.84 3/66 16331
/proc/meminfo: memFree=1397816/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=2176 CPUtime=0.69
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 354 0 0 0 69 0 0 0 22 0 1 0 230527993 2228224 338 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532694 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 544 338 95 220 0 321 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2176

[startup+1.50117 s]
/proc/loadavg: 1.23 1.80 1.84 2/67 16332
/proc/meminfo: memFree=1396784/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=2176 CPUtime=1.49
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 379 0 0 0 149 0 0 0 25 0 1 0 230527993 2228224 363 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134579667 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 544 363 95 220 0 321 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2176

[startup+3.10137 s]
/proc/loadavg: 1.23 1.80 1.84 2/67 16332
/proc/meminfo: memFree=1396464/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3204 CPUtime=3.09
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 424 0 0 0 309 0 0 0 25 0 1 0 230527993 3280896 408 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134579281 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 801 408 95 220 0 578 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3204

[startup+6.30178 s]
/proc/loadavg: 1.21 1.79 1.84 2/67 16332
/proc/meminfo: memFree=1396272/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3204 CPUtime=6.29
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 472 0 0 0 629 0 0 0 25 0 1 0 230527993 3280896 456 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532414 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 801 456 95 220 0 578 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3204

[startup+12.7016 s]
/proc/loadavg: 1.19 1.78 1.83 2/67 16332
/proc/meminfo: memFree=1395888/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3336 CPUtime=12.69
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 544 0 0 0 1269 0 0 0 25 0 1 0 230527993 3416064 528 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134528385 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 834 528 95 220 0 611 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3336

[startup+25.5022 s]
/proc/loadavg: 1.15 1.74 1.82 2/67 16332
/proc/meminfo: memFree=1395504/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3468 CPUtime=25.49
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 643 0 0 0 2549 0 0 0 25 0 1 0 230527993 3551232 627 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134537114 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 867 627 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+31.905 s]
/proc/loadavg: 1.14 1.73 1.81 2/67 16332
/proc/meminfo: memFree=1395440/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3468 CPUtime=31.89
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 667 0 0 0 3189 0 0 0 25 0 1 0 230527993 3551232 651 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134529929 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 867 651 95 220 0 644 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 3468

[startup+38.3018 s]
/proc/loadavg: 1.13 1.71 1.81 2/67 16332
/proc/meminfo: memFree=1395312/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3600 CPUtime=38.28
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 703 0 0 0 3828 0 0 0 25 0 1 0 230527993 3686400 687 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134528665 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 900 687 95 220 0 677 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 3600

[startup+41.5013 s]
/proc/loadavg: 1.12 1.70 1.81 2/67 16332
/proc/meminfo: memFree=1395248/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3600 CPUtime=41.48
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 717 0 0 0 4148 0 0 0 25 0 1 0 230527993 3686400 701 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134536669 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 900 701 95 220 0 677 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 3600

[startup+42.3024 s]
/proc/loadavg: 1.12 1.70 1.81 2/67 16332
/proc/meminfo: memFree=1395184/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3600 CPUtime=42.28
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 719 0 0 0 4228 0 0 0 25 0 1 0 230527993 3686400 703 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532759 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 900 703 95 220 0 677 0
Current children cumulated CPU time (s) 42.28
Current children cumulated vsize (KiB) 3600

[startup+42.7024 s]
/proc/loadavg: 1.12 1.70 1.81 2/67 16332
/proc/meminfo: memFree=1395184/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3600 CPUtime=42.68
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 720 0 0 0 4268 0 0 0 25 0 1 0 230527993 3686400 704 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532688 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 900 704 95 220 0 677 0
Current children cumulated CPU time (s) 42.68
Current children cumulated vsize (KiB) 3600

[startup+42.9054 s]
/proc/loadavg: 1.12 1.70 1.81 2/67 16332
/proc/meminfo: memFree=1395184/2055920 swapFree=4182164/4192956
[pid=16331] ppid=16329 vsize=3600 CPUtime=42.88
/proc/16331/stat : 16331 (sat7_bin) R 16329 16331 15941 0 -1 4194304 720 0 0 0 4288 0 0 0 25 0 1 0 230527993 3686400 704 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 135029304 0 0 4096 0 0 0 0 17 1 0 0
/proc/16331/statm: 900 704 95 220 0 677 0
Current children cumulated CPU time (s) 42.88
Current children cumulated vsize (KiB) 3600

Child status: 20
Real time (s): 42.9299
CPU time (s): 42.9165
CPU user time (s): 42.9115
CPU system time (s): 0.004999
CPU usage (%): 99.9688
Max. virtual memory (cumulated for all children) (KiB): 3600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 42.9115
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 720
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= 85

runsolver used 0.039993 second user time and 0.12598 second system time

The end

Launcher Data (download as text)

Begin job on node54 on Sun Apr 29 07:25:35 UTC 2007

IDJOB= 427036
IDBENCH= 20298
IDSOLVER= 183
FILE ID= node54/427036-1177831535

PBS_JOBID= 4718293

Free space on /tmp= 66563 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/427036-1177831535/sat7_bin /tmp/evaluation/427036-1177831535/instance-427036-1177831535.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node54/watcher-427036-1177831535 -o ROOT/results/node54/solver-427036-1177831535 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/427036-1177831535/sat7_bin /tmp/evaluation/427036-1177831535/instance-427036-1177831535.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  6c6574c6e53b7d1ef3d1cc6ac9e5dec3

RANDOM SEED= 405556920

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node54.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		: 3000.234
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		: 3000.234
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:       1398288 kB
Buffers:         56820 kB
Cached:         516168 kB
SwapCached:       4128 kB
Active:         280528 kB
Inactive:       303224 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1398288 kB
SwapTotal:     4192956 kB
SwapFree:      4182164 kB
Dirty:            1368 kB
Writeback:           0 kB
Mapped:          16640 kB
Slab:            59820 kB
Committed_AS:  2383540 kB
PageTables:       1416 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66563 MiB

End job on node54 on Sun Apr 29 07:26:18 UTC 2007