Trace number 1773012

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 2.1 (Sat-race'08 Edition)UNSAT 75.5175 75.536

General information on the benchmark

Nameindustrial/palacios/medium/
blocks-4-ipc5-h22-unknown.cnf
MD5SUM8c6ad18be635cee0d986377c4d06ab11
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark33.034
Satisfiable
(Un)Satisfiability was proved
Number of variables146874
Number of clauses937242
Sum of the clauses size2519136
Maximum clause length417
Minimum clause length1
Number of clauses of size 1125
Number of clauses of size 2791651
Number of clauses of size 3139269
Number of clauses of size 41522
Number of clauses of size 583
Number of clauses of size over 54592

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.89/0.91	c |  Number of variables:        148153                                         |
0.89/0.91	c |  Number of clauses:          936867                                         |
0.89/0.91	c |  Parse time:                   0.79 s                                       |
15.99/16.00	c |  Simplification time:         15.04 s                                       |
15.99/16.00	c |                                                                             |
15.99/16.00	c ============================[ Search Statistics ]==============================
15.99/16.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
15.99/16.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
15.99/16.00	c ===============================================================================
16.08/16.18	c |       100 |   41686   724384  2592861 |   265607      100     13 |  0.084 % |
16.39/16.45	c |       250 |   41686   724384  2592861 |   292168      250     26 |  0.084 % |
16.78/16.82	c |       475 |   41686   724384  2592861 |   321385      475     34 |  0.084 % |
17.28/17.31	c |       812 |   41686   724384  2592861 |   353523      812     36 |  0.084 % |
17.88/17.98	c |      1318 |   41686   724384  2592861 |   388875     1318     32 |  0.084 % |
19.28/19.30	c |      2077 |   41686   724384  2592861 |   427763     2077     35 |  0.084 % |
20.88/20.93	c |      3216 |   41686   724384  2592861 |   470539     3216     29 |  0.084 % |
23.19/23.22	c |      4924 |   41686   724384  2592861 |   517593     4924     34 |  0.084 % |
27.08/27.17	c |      7486 |   41686   724384  2592861 |   569353     7486     34 |  0.084 % |
33.68/33.73	c |     11330 |   41686   724384  2592861 |   626288    11330     31 |  0.084 % |
42.68/42.71	c |     17096 |   41686   724384  2592861 |   688917    17096     30 |  0.084 % |
54.68/54.79	c |     25745 |   41686   724384  2592861 |   757809    25745     27 |  0.084 % |
70.38/70.50	c |     38719 |   41663   724262  2592213 |   833590    35523     24 |  0.100 % |
75.47/75.52	c ===============================================================================
75.47/75.52	c restarts              : 127
75.47/75.52	c conflicts             : 43938          (583 /sec)
75.47/75.52	c decisions             : 98534          (1309 /sec)
75.47/75.52	c propagations          : 168804918      (2241689 /sec)
75.47/75.52	c conflict literals     : 947490         (36.83 % deleted)
75.47/75.52	c Memory used           : 92.17 MB
75.47/75.52	c CPU time              : 75.3026 s
75.47/75.52	c 
75.47/75.52	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1773012-1241208948/watcher-1773012-1241208948 -o /tmp/evaluation-result-1773012-1241208948/solver-1773012-1241208948 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773012-1241208948.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 23307
/proc/meminfo: memFree=777776/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=7744 CPUtime=0
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 465 0 0 0 0 0 0 0 18 0 1 0 148928494 7929856 449 1992294400 4194304 5092341 548682068848 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 1936 449 63 219 0 1714 0

[startup+0.029463 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 23307
/proc/meminfo: memFree=777776/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=9760 CPUtime=0.02
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 1077 0 0 0 2 0 0 0 18 0 1 0 148928494 9994240 1061 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 2440 1061 63 219 0 2218 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 9760

[startup+0.101468 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 23307
/proc/meminfo: memFree=777776/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=15356 CPUtime=0.09
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 2823 0 0 0 8 1 0 0 18 0 1 0 148928494 15724544 2614 1992294400 4194304 5092341 548682068848 18446744073709551615 4245077 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 3839 2615 63 219 0 3617 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15356

[startup+0.30148 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 23307
/proc/meminfo: memFree=777776/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=32000 CPUtime=0.29
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 7373 0 0 0 25 4 0 0 19 0 1 0 148928494 32768000 6825 1992294400 4194304 5092341 548682068848 18446744073709551615 4236589 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 8000 6833 63 219 0 7778 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 32000

[startup+0.701505 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 23307
/proc/meminfo: memFree=777776/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=67396 CPUtime=0.69
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 16875 0 0 0 59 10 0 0 22 0 1 0 148928494 69013504 14883 1992294400 4194304 5092341 548682068848 18446744073709551615 4209708 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 16849 14883 63 219 0 16627 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 67396

[startup+1.50156 s]
/proc/loadavg: 0.92 0.97 0.99 2/65 23308
/proc/meminfo: memFree=700072/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=82192 CPUtime=1.49
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 21465 0 0 0 137 12 0 0 25 0 1 0 148928494 84164608 19473 1992294400 4194304 5092341 548682068848 18446744073709551615 4220379 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 20548 19473 86 219 0 20326 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 82192

[startup+3.10166 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 23308
/proc/meminfo: memFree=699880/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=90952 CPUtime=3.09
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 21667 0 0 0 297 12 0 0 25 0 1 0 148928494 93134848 19675 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 22738 19675 87 219 0 22516 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 90952

[startup+6.30187 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 23308
/proc/meminfo: memFree=672808/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=119252 CPUtime=6.29
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 28229 0 0 0 614 15 0 0 25 0 1 0 148928494 122114048 26237 1992294400 4194304 5092341 548682068848 18446744073709551615 4219904 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 29813 26237 87 219 0 29591 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 119252

[startup+12.7013 s]
/proc/loadavg: 0.93 0.97 0.99 2/65 23308
/proc/meminfo: memFree=670824/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=122592 CPUtime=12.69
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 28734 0 0 0 1254 15 0 0 25 0 1 0 148928494 125534208 26742 1992294400 4194304 5092341 548682068848 18446744073709551615 4219793 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 30648 26742 87 219 0 30426 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 122592

[startup+25.5011 s]
/proc/loadavg: 0.95 0.97 0.99 2/65 23308
/proc/meminfo: memFree=693736/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=94380 CPUtime=25.49
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 32391 0 0 0 2531 18 0 0 25 0 1 0 148928494 96645120 21057 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 23595 21057 103 219 0 23373 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 94380

[startup+51.1017 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 23308
/proc/meminfo: memFree=692136/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=94380 CPUtime=51.08
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 32830 0 0 0 5089 19 0 0 25 0 1 0 148928494 96645120 21496 1992294400 4194304 5092341 548682068848 18446744073709551615 4240636 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 23595 21496 103 219 0 23373 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 94380

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

[startup+63.9016 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 23308
/proc/meminfo: memFree=691304/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=94380 CPUtime=63.88
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 33022 0 0 0 6369 19 0 0 25 0 1 0 148928494 96645120 21688 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 23595 21688 103 219 0 23373 0
Current children cumulated CPU time (s) 63.88
Current children cumulated vsize (KiB) 94380

[startup+70.302 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 23308
/proc/meminfo: memFree=690984/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=94380 CPUtime=70.28
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 33103 0 0 0 7009 19 0 0 25 0 1 0 148928494 96645120 21769 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 23595 21769 103 219 0 23373 0
Current children cumulated CPU time (s) 70.28
Current children cumulated vsize (KiB) 94380

[startup+73.5012 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 23308
/proc/meminfo: memFree=690856/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=94380 CPUtime=73.47
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 33150 0 0 0 7328 19 0 0 25 0 1 0 148928494 96645120 21816 1992294400 4194304 5092341 548682068848 18446744073709551615 4240667 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 23595 21816 103 219 0 23373 0
Current children cumulated CPU time (s) 73.47
Current children cumulated vsize (KiB) 94380

[startup+74.3012 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 23308
/proc/meminfo: memFree=690792/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=94380 CPUtime=74.27
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 33158 0 0 0 7408 19 0 0 25 0 1 0 148928494 96645120 21824 1992294400 4194304 5092341 548682068848 18446744073709551615 4241363 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 23595 21824 103 219 0 23373 0
Current children cumulated CPU time (s) 74.27
Current children cumulated vsize (KiB) 94380

[startup+75.1013 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 23308
/proc/meminfo: memFree=690728/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=94380 CPUtime=75.07
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 33169 0 0 0 7488 19 0 0 25 0 1 0 148928494 96645120 21835 1992294400 4194304 5092341 548682068848 18446744073709551615 4250107 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 23595 21835 103 219 0 23373 0
Current children cumulated CPU time (s) 75.07
Current children cumulated vsize (KiB) 94380

[startup+75.5013 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 23308
/proc/meminfo: memFree=690728/2055920 swapFree=4181244/4192956
[pid=23307] ppid=23305 vsize=94380 CPUtime=75.47
/proc/23307/stat : 23307 (minisat) R 23305 23307 23243 0 -1 4194304 33172 0 0 0 7528 19 0 0 25 0 1 0 148928494 96645120 21838 1992294400 4194304 5092341 548682068848 18446744073709551615 4241622 0 0 4096 3 0 0 0 17 1 0 0
/proc/23307/statm: 23595 21838 103 219 0 23373 0
Current children cumulated CPU time (s) 75.47
Current children cumulated vsize (KiB) 94380

Child status: 20
Real time (s): 75.536
CPU time (s): 75.5175
CPU user time (s): 75.3026
CPU system time (s): 0.214967
CPU usage (%): 99.9755
Max. virtual memory (cumulated for all children) (KiB): 133796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 75.3026
system time used= 0.214967
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 33182
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= 2
involuntary context switches= 158

runsolver used 0.077988 second user time and 0.160975 second system time

The end

Launcher Data 

Begin job on node22 at 2009-05-01 22:15:50
IDJOB=1773012
IDBENCH=20430
IDSOLVER=608
FILE ID=node22/1773012-1241208948
PBS_JOBID= 9224708
Free space on /tmp= 66412 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/industrial/palacios/medium/blocks-4-ipc5-h22-unknown.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773012-1241208948/watcher-1773012-1241208948 -o /tmp/evaluation-result-1773012-1241208948/solver-1773012-1241208948 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773012-1241208948.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 8c6ad18be635cee0d986377c4d06ab11
RANDOM SEED=229738440

node22.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.232
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		: 3000.232
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:        778192 kB
Buffers:         80812 kB
Cached:        1089828 kB
SwapCached:       5556 kB
Active:         246028 kB
Inactive:       932452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        778192 kB
SwapTotal:     4192956 kB
SwapFree:      4181244 kB
Dirty:           18076 kB
Writeback:           0 kB
Mapped:          13520 kB
Slab:            85208 kB
Committed_AS:   756628 kB
PageTables:       1368 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= 66408 MiB
End job on node22 at 2009-05-01 22:17:05