Trace number 311030

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
minisat SAT 2007 (with assertions)UNSAT 48.1367 48.1488

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1239472001-19-UNSAT.cnf
MD5SUM914d3e80d7a891b747d01777ed9ce8d7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.2419
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
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)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  1295                                                 |
0.00/0.00	c |  Number of clauses:    4026                                                 |
0.00/0.00	c |  Parsing time:         0.01         s                                       |
0.00/0.01	c ============================[ Search Statistics ]==============================
0.00/0.01	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.01	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.01	c ===============================================================================
0.00/0.01	c |         0 |    1083     3709    11128 |     1236        0    nan |  0.000 % |
0.00/0.01	c |       100 |    1083     3709    11128 |     1359      100     17 |  0.077 % |
0.00/0.02	c |       251 |    1083     3709    11128 |     1495      251     17 |  0.077 % |
0.00/0.04	c |       476 |    1083     3709    11128 |     1645      476     17 |  0.077 % |
0.00/0.06	c |       813 |    1083     3709    11128 |     1810      813     18 |  0.078 % |
0.00/0.10	c |      1319 |    1083     3709    11128 |     1991     1319     18 |  0.077 % |
0.10/0.15	c |      2078 |    1083     3709    11128 |     2190     2078     19 |  0.078 % |
0.20/0.24	c |      3217 |    1083     3709    11128 |     2409     2104     19 |  0.077 % |
0.30/0.39	c |      4925 |    1083     3709    11128 |     2650     1294     17 |  0.077 % |
0.51/0.61	c |      7488 |    1083     3709    11128 |     2915     2483     18 |  0.077 % |
0.92/0.95	c |     11332 |    1083     3709    11128 |     3206     1804     16 |  0.077 % |
1.43/1.47	c |     17098 |    1083     3709    11128 |     3527     2619     16 |  0.077 % |
2.25/2.27	c |     25748 |    1083     3709    11128 |     3880     2224     18 |  0.077 % |
3.48/3.52	c |     38722 |    1083     3709    11128 |     4268     3310     17 |  0.077 % |
5.32/5.39	c |     58184 |    1083     3709    11128 |     4694     3166     19 |  0.077 % |
8.29/8.31	c |     87377 |    1083     3709    11128 |     5164     3598     18 |  0.077 % |
12.80/12.80	c |    131166 |    1082     3691    11065 |     5680     5193     16 |  0.155 % |
19.96/20.05	c |    196850 |    1081     3685    11048 |     6249     2907     17 |  0.232 % |
31.23/31.24	c |    295376 |    1081     3685    11048 |     6873     6269     20 |  0.232 % |
48.12/48.14	c ===============================================================================
48.12/48.14	c restarts              : 19
48.12/48.14	c conflicts             : 440963         (9162 /sec)
48.12/48.14	c decisions             : 539833         (1.74 % random) (11216 /sec)
48.12/48.14	c propagations          : 65232389       (1355290 /sec)
48.12/48.14	c conflict literals     : 8417256        (38.79 % deleted)
48.12/48.14	c Memory used           : 3.63 MB
48.12/48.14	c CPU time              : 48.1317 s
48.12/48.14	c 
48.12/48.14	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/node17/watcher-311030-1172564018 -o ROOT/results/node17/solver-311030-1172564018 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311030-1172564018/minisat /tmp/evaluation/311030-1172564018/instance-311030-1172564018.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: 0.93 0.99 0.99 3/77 20360
/proc/meminfo: memFree=1468344/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=2020 CPUtime=0
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 186 0 0 0 0 0 0 0 18 0 1 0 276356079 2068480 170 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134532549 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 505 170 58 138 0 364 0

[startup+0.106252 s]
/proc/loadavg: 0.93 0.99 0.99 3/77 20360
/proc/meminfo: memFree=1468344/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=2252 CPUtime=0.1
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 245 0 0 0 10 0 0 0 18 0 1 0 276356079 2306048 229 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550857 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 563 229 73 138 0 422 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2252

[startup+0.514294 s]
/proc/loadavg: 0.93 0.99 0.99 3/77 20360
/proc/meminfo: memFree=1468344/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=2384 CPUtime=0.51
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 286 0 0 0 51 0 0 0 22 0 1 0 276356079 2441216 270 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550729 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 596 270 73 138 0 455 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2384

[startup+1.33438 s]
/proc/loadavg: 0.93 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1467440/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=2516 CPUtime=1.33
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 308 0 0 0 133 0 0 0 25 0 1 0 276356079 2576384 292 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550582 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 629 292 73 138 0 488 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2516

[startup+2.97055 s]
/proc/loadavg: 0.93 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1467184/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=2648 CPUtime=2.96
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 359 0 0 0 296 0 0 0 25 0 1 0 276356079 2711552 343 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134521191 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 662 343 73 138 0 521 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 2648

[startup+6.24689 s]
/proc/loadavg: 0.93 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466864/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=2912 CPUtime=6.24
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 406 0 0 0 624 0 0 0 25 0 1 0 276356079 2981888 390 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550683 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 728 390 73 138 0 587 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2912

[startup+12.7026 s]
/proc/loadavg: 0.94 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466672/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=3044 CPUtime=12.69
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 459 0 0 0 1269 0 0 0 25 0 1 0 276356079 3117056 443 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134551022 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 761 443 73 138 0 620 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3044

[startup+25.5099 s]
/proc/loadavg: 0.95 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466224/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=3452 CPUtime=25.5
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 557 0 0 0 2550 0 0 0 25 0 1 0 276356079 3534848 541 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134551033 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 863 541 73 138 0 722 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 3452

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

[startup+26.228 s]
/proc/loadavg: 0.95 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466224/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=3452 CPUtime=26.22
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 557 0 0 0 2622 0 0 0 25 0 1 0 276356079 3534848 541 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550254 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 863 541 73 138 0 722 0
Current children cumulated CPU time (s) 26.22
Current children cumulated vsize (KiB) 3452

[startup+39.3354 s]
/proc/loadavg: 0.96 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466096/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=3716 CPUtime=39.32
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 603 0 0 0 3932 0 0 0 25 0 1 0 276356079 3805184 587 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550571 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 929 587 73 138 0 788 0
Current children cumulated CPU time (s) 39.32
Current children cumulated vsize (KiB) 3716

[startup+42.6157 s]
/proc/loadavg: 0.96 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466096/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=3716 CPUtime=42.6
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 613 0 0 0 4260 0 0 0 25 0 1 0 276356079 3805184 597 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550582 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 929 597 73 138 0 788 0
Current children cumulated CPU time (s) 42.6
Current children cumulated vsize (KiB) 3716

[startup+45.892 s]
/proc/loadavg: 0.96 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466032/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=3716 CPUtime=45.87
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 614 0 0 0 4587 0 0 0 25 0 1 0 276356079 3805184 598 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134551819 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 929 598 73 138 0 788 0
Current children cumulated CPU time (s) 45.87
Current children cumulated vsize (KiB) 3716

[startup+47.5322 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466032/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=3716 CPUtime=47.51
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 619 0 0 0 4751 0 0 0 25 0 1 0 276356079 3805184 603 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550202 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 929 603 73 138 0 788 0
Current children cumulated CPU time (s) 47.51
Current children cumulated vsize (KiB) 3716

[startup+47.9403 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466032/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=3716 CPUtime=47.92
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 620 0 0 0 4792 0 0 0 25 0 1 0 276356079 3805184 604 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550596 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 929 604 73 138 0 788 0
Current children cumulated CPU time (s) 47.92
Current children cumulated vsize (KiB) 3716

[startup+48.1443 s]
/proc/loadavg: 0.97 0.99 0.99 2/78 20361
/proc/meminfo: memFree=1466032/2055920 swapFree=4192812/4192956
[pid=20360] ppid=20358 vsize=3716 CPUtime=48.12
/proc/20360/stat : 20360 (minisat) R 20358 20360 18745 0 -1 4194304 620 0 0 0 4812 0 0 0 25 0 1 0 276356079 3805184 604 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550596 0 0 4096 3 0 0 0 17 1 0 0
/proc/20360/statm: 929 604 73 138 0 788 0
Current children cumulated CPU time (s) 48.12
Current children cumulated vsize (KiB) 3716

Child status: 0
Real time (s): 48.1488
CPU time (s): 48.1367
CPU user time (s): 48.1327
CPU system time (s): 0.003999
CPU usage (%): 99.9748
Max. virtual memory (cumulated for all children) (KiB): 3716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 48.1327
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 626
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= 1007

runsolver used 0.055991 second user time and 0.112982 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue Feb 27 08:13:38 UTC 2007

IDJOB= 311030
IDBENCH= 20303
IDSOLVER= 109
FILE ID= node17/311030-1172564018

PBS_JOBID= 3971656

Free space on /tmp= 66558 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1239472001-19-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/311030-1172564018/minisat /tmp/evaluation/311030-1172564018/instance-311030-1172564018.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-311030-1172564018 -o ROOT/results/node17/solver-311030-1172564018 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311030-1172564018/minisat /tmp/evaluation/311030-1172564018/instance-311030-1172564018.cnf            

META MD5SUM SOLVER= 120abd248b069e44985635f055606c5a
MD5SUM BENCH=  914d3e80d7a891b747d01777ed9ce8d7

RANDOM SEED= 825482178

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.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		: 3000.229
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		: 3000.229
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:       1468816 kB
Buffers:         63952 kB
Cached:         402800 kB
SwapCached:          0 kB
Active:         303196 kB
Inactive:       208112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1468816 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1036 kB
Writeback:           0 kB
Mapped:          63472 kB
Slab:            61324 kB
Committed_AS:   912780 kB
PageTables:       1748 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= 66558 MiB

End job on node17 on Tue Feb 27 08:14:27 UTC 2007