Trace number 310940

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 118.473 118.511

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1230630010-06-UNSAT.cnf
MD5SUMf1d2cd08ac7f8096a38662a7d7275db8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.0164
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 251 conflicts
0.00/0.06	c Restarting after 477 conflicts
0.10/0.11	c Restarting after 815 conflicts
0.10/0.17	c Restarting after 1325 conflicts
0.20/0.26	c Restarting after 2085 conflicts
0.40/0.41	c Restarting after 3224 conflicts
0.61/0.64	c Restarting after 4933 conflicts
0.91/1.00	c Restarting after 7495 conflicts
1.43/1.53	c Restarting after 11340 conflicts
2.35/2.39	c Restarting after 17107 conflicts
3.68/3.71	c Restarting after 25757 conflicts
5.73/5.79	c Restarting after 38731 conflicts
8.90/8.91	c Restarting after 58193 conflicts
13.61/13.70	c Restarting after 87387 conflicts
21.08/21.17	c Restarting after 131177 conflicts
32.55/32.65	c Restarting after 196861 conflicts
50.17/50.20	c Restarting after 295389 conflicts
77.40/77.46	c Restarting after 443181 conflicts
118.46/118.50	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-310940-1172563031 -o ROOT/results/node65/solver-310940-1172563031 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310940-1172563031/sat7_bin /tmp/evaluation/310940-1172563031/instance-310940-1172563031.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: 1.91 1.30 1.10 3/64 24243
/proc/meminfo: memFree=1827072/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=1256 CPUtime=0
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 164 0 0 0 0 0 0 0 18 0 1 0 276260646 1286144 147 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134547035 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 314 147 87 220 0 91 0

[startup+0.106921 s]
/proc/loadavg: 1.91 1.30 1.10 3/64 24243
/proc/meminfo: memFree=1827072/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=1660 CPUtime=0.1
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 265 0 0 0 10 0 0 0 18 0 1 0 276260646 1699840 248 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134538591 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 415 248 95 220 0 192 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1660

[startup+0.514987 s]
/proc/loadavg: 1.91 1.30 1.10 3/64 24243
/proc/meminfo: memFree=1827072/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=2176 CPUtime=0.51
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 336 0 0 0 51 0 0 0 21 0 1 0 276260646 2228224 319 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134558961 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 544 319 95 220 0 321 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2176

[startup+1.33512 s]
/proc/loadavg: 1.91 1.30 1.10 2/65 24244
/proc/meminfo: memFree=1826104/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=2176 CPUtime=1.33
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 370 0 0 0 133 0 0 0 25 0 1 0 276260646 2228224 353 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134531413 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 544 353 95 220 0 321 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2176

[startup+2.97139 s]
/proc/loadavg: 1.83 1.30 1.10 2/65 24244
/proc/meminfo: memFree=1825720/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=3204 CPUtime=2.96
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 433 0 0 0 296 0 0 0 25 0 1 0 276260646 3280896 416 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 801 416 95 220 0 578 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 3204

[startup+6.24993 s]
/proc/loadavg: 1.83 1.30 1.10 2/65 24244
/proc/meminfo: memFree=1825344/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=3204 CPUtime=6.24
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 491 0 0 0 624 0 0 0 25 0 1 0 276260646 3280896 474 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134525775 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 801 474 95 220 0 578 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 3204

[startup+12.703 s]
/proc/loadavg: 1.71 1.29 1.10 2/65 24244
/proc/meminfo: memFree=1824968/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=3336 CPUtime=12.69
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 563 0 0 0 1269 0 0 0 25 0 1 0 276260646 3416064 546 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532469 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 834 546 95 220 0 611 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3336

[startup+25.5061 s]
/proc/loadavg: 1.60 1.28 1.09 2/65 24244
/proc/meminfo: memFree=1824520/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=3468 CPUtime=25.48
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 674 0 0 0 2548 0 0 0 25 0 1 0 276260646 3551232 657 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134529366 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 867 657 95 220 0 644 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3468

[startup+51.1123 s]
/proc/loadavg: 1.39 1.25 1.09 2/65 24244
/proc/meminfo: memFree=1824072/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=5652 CPUtime=51.09
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 792 0 0 0 5108 1 0 0 25 0 1 0 276260646 5787648 775 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 135029304 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1413 775 95 220 0 1190 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 5652

[startup+102.318 s]
/proc/loadavg: 1.17 1.21 1.08 2/65 24244
/proc/meminfo: memFree=1823368/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=6052 CPUtime=102.27
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 957 0 0 0 10226 1 0 0 25 0 1 0 276260646 6197248 940 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532523 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1513 940 95 220 0 1290 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 6052

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

[startup+104.881 s]
/proc/loadavg: 1.16 1.21 1.08 2/65 24244
/proc/meminfo: memFree=1823368/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=6052 CPUtime=104.84
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 961 0 0 0 10483 1 0 0 25 0 1 0 276260646 6197248 944 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134529362 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1513 944 95 220 0 1290 0
Current children cumulated CPU time (s) 104.84
Current children cumulated vsize (KiB) 6052

[startup+111.435 s]
/proc/loadavg: 1.14 1.20 1.08 2/65 24244
/proc/meminfo: memFree=1823304/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=6052 CPUtime=111.39
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 972 0 0 0 11138 1 0 0 25 0 1 0 276260646 6197248 955 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532514 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1513 955 95 220 0 1290 0
Current children cumulated CPU time (s) 111.39
Current children cumulated vsize (KiB) 6052

[startup+114.712 s]
/proc/loadavg: 1.13 1.20 1.08 2/65 24244
/proc/meminfo: memFree=1823304/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=6052 CPUtime=114.66
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 978 0 0 0 11465 1 0 0 25 0 1 0 276260646 6197248 961 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1513 961 95 220 0 1290 0
Current children cumulated CPU time (s) 114.66
Current children cumulated vsize (KiB) 6052

[startup+116.354 s]
/proc/loadavg: 1.13 1.20 1.08 2/65 24244
/proc/meminfo: memFree=1823240/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=6052 CPUtime=116.31
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 984 0 0 0 11630 1 0 0 25 0 1 0 276260646 6197248 967 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134540925 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1513 967 95 220 0 1290 0
Current children cumulated CPU time (s) 116.31
Current children cumulated vsize (KiB) 6052

[startup+117.17 s]
/proc/loadavg: 1.12 1.20 1.08 2/65 24244
/proc/meminfo: memFree=1823240/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=6052 CPUtime=117.13
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 987 0 0 0 11712 1 0 0 25 0 1 0 276260646 6197248 970 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134525748 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1513 970 95 220 0 1290 0
Current children cumulated CPU time (s) 117.13
Current children cumulated vsize (KiB) 6052

[startup+117.99 s]
/proc/loadavg: 1.12 1.20 1.08 2/65 24244
/proc/meminfo: memFree=1823240/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=6052 CPUtime=117.94
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 990 0 0 0 11793 1 0 0 25 0 1 0 276260646 6197248 973 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134578706 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1513 973 95 220 0 1290 0
Current children cumulated CPU time (s) 117.94
Current children cumulated vsize (KiB) 6052

[startup+118.402 s]
/proc/loadavg: 1.12 1.20 1.08 2/65 24244
/proc/meminfo: memFree=1823240/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=6052 CPUtime=118.35
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 990 0 0 0 11834 1 0 0 25 0 1 0 276260646 6197248 973 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134540262 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1513 973 95 220 0 1290 0
Current children cumulated CPU time (s) 118.35
Current children cumulated vsize (KiB) 6052

[startup+118.504 s]
/proc/loadavg: 1.12 1.20 1.08 2/65 24244
/proc/meminfo: memFree=1823240/2055920 swapFree=4172316/4192956
[pid=24243] ppid=24241 vsize=6052 CPUtime=118.46
/proc/24243/stat : 24243 (sat7_bin) R 24241 24243 23197 0 -1 4194304 990 0 0 0 11845 1 0 0 25 0 1 0 276260646 6197248 973 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532939 0 0 4096 0 0 0 0 17 1 0 0
/proc/24243/statm: 1513 973 95 220 0 1290 0
Current children cumulated CPU time (s) 118.46
Current children cumulated vsize (KiB) 6052

Child status: 20
Real time (s): 118.511
CPU time (s): 118.473
CPU user time (s): 118.456
CPU system time (s): 0.016997
CPU usage (%): 99.968
Max. virtual memory (cumulated for all children) (KiB): 6052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 118.456
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 990
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= 88

runsolver used 0.083987 second user time and 0.243962 second system time

The end

Launcher Data (download as text)

Begin job on node65 on Tue Feb 27 07:57:11 UTC 2007

IDJOB= 310940
IDBENCH= 20300
IDSOLVER= 101
FILE ID= node65/310940-1172563031

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-S1230630010-06-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310940-1172563031/sat7_bin /tmp/evaluation/310940-1172563031/instance-310940-1172563031.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node65/watcher-310940-1172563031 -o ROOT/results/node65/solver-310940-1172563031 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310940-1172563031/sat7_bin /tmp/evaluation/310940-1172563031/instance-310940-1172563031.cnf            

META MD5SUM SOLVER= 499b432f7af158d8586c91b2e490220f
MD5SUM BENCH=  f1d2cd08ac7f8096a38662a7d7275db8

RANDOM SEED= 69857866

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:       1827544 kB
Buffers:         30188 kB
Cached:         138896 kB
SwapCached:      14924 kB
Active:          82992 kB
Inactive:       107760 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1827544 kB
SwapTotal:     4192956 kB
SwapFree:      4172316 kB
Dirty:            1208 kB
Writeback:           0 kB
Mapped:          15396 kB
Slab:            23668 kB
Committed_AS:   655404 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 07:59:10 UTC 2007