Trace number 1797952

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
minisat2-core 070721UNSAT 55.1656 55.1813

General information on the benchmark

NameAPPLICATIONS/
bitverif/maxand/maxand064.cnf
MD5SUMb2d2617ddc348aef0d35df3c8f228dcb
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark15.6046
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	This is MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  14578                                                |
0.00/0.00	|  Number of clauses:    42581                                                |
0.00/0.02	|  Parsing time:         0.02         s                                       |
0.00/0.02	============================[ Search Statistics ]==============================
0.00/0.02	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.02	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.02	===============================================================================
0.00/0.02	|         0 |   14560    42537    99259 |    14179        0    nan |  0.000 % |
0.00/0.04	|       100 |   14560    42537    99259 |    15596      100     20 |  0.123 % |
0.00/0.05	|       250 |   14560    42537    99259 |    17156      250     14 |  0.123 % |
0.00/0.08	|       475 |   14560    42537    99259 |    18872      475     13 |  0.123 % |
0.09/0.14	|       812 |   14560    42537    99259 |    20759      812     14 |  0.123 % |
0.19/0.20	|      1318 |   14560    42537    99259 |    22835     1318     16 |  0.123 % |
0.29/0.33	|      2077 |   14560    42537    99259 |    25118     2077     27 |  0.123 % |
0.39/0.48	|      3217 |   14560    42537    99259 |    27630     3217     37 |  0.123 % |
0.69/0.79	|      4926 |   14560    42537    99259 |    30393     4926     48 |  0.123 % |
1.19/1.28	|      7488 |   14559    42472    99129 |    33433     7486     60 |  0.130 % |
1.99/2.02	|     11333 |   14559    42472    99129 |    36776    11331     71 |  0.130 % |
3.49/3.55	|     17099 |   14559    42472    99129 |    40454    17097     84 |  0.130 % |
7.29/7.30	|     25751 |   14559    42472    99129 |    44499    25749    109 |  0.130 % |
12.39/12.45	|     38726 |   14559    42472    99129 |    48949    38724    122 |  0.130 % |
22.38/22.49	|     58188 |   14559    42472    99129 |    53844    24384    131 |  0.130 % |
43.08/43.13	|     87382 |   14559    42472    99129 |    59229    53578    142 |  0.130 % |
55.08/55.17	===============================================================================
55.08/55.17	restarts              : 16
55.08/55.17	conflicts             : 109723         (1992 /sec)
55.08/55.17	decisions             : 264415         (1.77 % random) (4800 /sec)
55.08/55.17	propagations          : 82300931       (1494027 /sec)
55.08/55.17	conflict literals     : 13976183       (22.12 % deleted)
55.08/55.17	Memory used           : 40.68 MB
55.08/55.17	CPU time              : 55.0866 s
55.08/55.17	
55.08/55.17	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-1797952-1242080248/watcher-1797952-1242080248 -o /tmp/evaluation-result-1797952-1242080248/solver-1797952-1242080248 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1797952-1242080248.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 0.99 0.97 0.99 3/65 31753
/proc/meminfo: memFree=915960/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=2184 CPUtime=0
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 332 0 0 0 0 0 0 0 18 0 1 0 236057540 2236416 317 1992294400 134512640 135213614 4294956256 18446744073709551615 134524560 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 546 317 58 171 0 372 0

[startup+0.102831 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 31753
/proc/meminfo: memFree=915960/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=4792 CPUtime=0.09
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 927 0 0 0 9 0 0 0 18 0 1 0 236057540 4907008 912 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 1198 912 78 171 0 1024 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4792

[startup+0.202843 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 31753
/proc/meminfo: memFree=915960/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=4792 CPUtime=0.19
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 946 0 0 0 19 0 0 0 18 0 1 0 236057540 4907008 931 1992294400 134512640 135213614 4294956256 18446744073709551615 134537578 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 1198 931 78 171 0 1024 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 4792

[startup+0.302854 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 31753
/proc/meminfo: memFree=915960/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=4924 CPUtime=0.29
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 981 0 0 0 29 0 0 0 19 0 1 0 236057540 5042176 966 1992294400 134512640 135213614 4294956256 18446744073709551615 134526715 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 1231 966 78 171 0 1057 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4924

[startup+0.7019 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 31753
/proc/meminfo: memFree=915960/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=5716 CPUtime=0.69
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 1172 0 0 0 69 0 0 0 22 0 1 0 236057540 5853184 1157 1992294400 134512640 135213614 4294956256 18446744073709551615 134526985 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 1429 1157 78 171 0 1255 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5716

[startup+1.50199 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=910960/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=7300 CPUtime=1.49
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 1548 0 0 0 149 0 0 0 25 0 1 0 236057540 7475200 1533 1992294400 134512640 135213614 4294956256 18446744073709551615 134536734 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 1825 1533 78 171 0 1651 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7300

[startup+3.10118 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=908464/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=10468 CPUtime=3.09
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 2352 0 0 0 308 1 0 0 25 0 1 0 236057540 10719232 2337 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 2617 2337 78 171 0 2443 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10468

[startup+6.30154 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=903088/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=15492 CPUtime=6.28
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 3602 0 0 0 626 2 0 0 25 0 1 0 236057540 15863808 3587 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 3873 3587 78 171 0 3699 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 15492

[startup+12.7013 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=892656/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=25428 CPUtime=12.69
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 6102 0 0 0 1265 4 0 0 25 0 1 0 236057540 26038272 6087 1992294400 134512640 135213614 4294956256 18446744073709551615 134529537 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 6357 6087 78 171 0 6183 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 25428

[startup+25.5028 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=884784/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=32372 CPUtime=25.48
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 7817 0 0 0 2543 5 0 0 25 0 1 0 236057540 33148928 7802 1992294400 134512640 135213614 4294956256 18446744073709551615 134526864 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 8093 7802 78 171 0 7919 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 32372

[startup+51.1027 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=875504/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=41652 CPUtime=51.08
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 10133 0 0 0 5101 7 0 0 25 0 1 0 236057540 42651648 10118 1992294400 134512640 135213614 4294956256 18446744073709551615 134526789 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 10413 10118 78 171 0 10239 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 41652

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

[startup+51.2027 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=875504/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=41652 CPUtime=51.18
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 10133 0 0 0 5111 7 0 0 25 0 1 0 236057540 42651648 10118 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 10413 10118 78 171 0 10239 0
Current children cumulated CPU time (s) 51.18
Current children cumulated vsize (KiB) 41652

[startup+52.8019 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=875504/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=41652 CPUtime=52.78
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 10133 0 0 0 5271 7 0 0 25 0 1 0 236057540 42651648 10118 1992294400 134512640 135213614 4294956256 18446744073709551615 134526715 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 10413 10118 78 171 0 10239 0
Current children cumulated CPU time (s) 52.78
Current children cumulated vsize (KiB) 41652

[startup+54.4011 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=875504/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=41652 CPUtime=54.38
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 10133 0 0 0 5431 7 0 0 25 0 1 0 236057540 42651648 10118 1992294400 134512640 135213614 4294956256 18446744073709551615 134524278 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 10413 10118 78 171 0 10239 0
Current children cumulated CPU time (s) 54.38
Current children cumulated vsize (KiB) 41652

[startup+54.8011 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=875504/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=41652 CPUtime=54.78
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 10133 0 0 0 5471 7 0 0 25 0 1 0 236057540 42651648 10118 1992294400 134512640 135213614 4294956256 18446744073709551615 134526959 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 10413 10118 78 171 0 10239 0
Current children cumulated CPU time (s) 54.78
Current children cumulated vsize (KiB) 41652

[startup+55.0012 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=875504/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=41652 CPUtime=54.98
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 10133 0 0 0 5491 7 0 0 25 0 1 0 236057540 42651648 10118 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 10413 10118 78 171 0 10239 0
Current children cumulated CPU time (s) 54.98
Current children cumulated vsize (KiB) 41652

[startup+55.1052 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 31754
/proc/meminfo: memFree=875504/2055920 swapFree=4155404/4192956
[pid=31753] ppid=31751 vsize=41652 CPUtime=55.08
/proc/31753/stat : 31753 (minisat_static) R 31751 31753 31488 0 -1 4194304 10133 0 0 0 5501 7 0 0 25 0 1 0 236057540 42651648 10118 1992294400 134512640 135213614 4294956256 18446744073709551615 134527247 0 0 4096 3 0 0 0 17 1 0 0
/proc/31753/statm: 10413 10118 78 171 0 10239 0
Current children cumulated CPU time (s) 55.08
Current children cumulated vsize (KiB) 41652

Child status: 20
Real time (s): 55.1813
CPU time (s): 55.1656
CPU user time (s): 55.0866
CPU system time (s): 0.078987
CPU usage (%): 99.9715
Max. virtual memory (cumulated for all children) (KiB): 41652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 55.0866
system time used= 0.078987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10145
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= 134

runsolver used 0.06099 second user time and 0.143978 second system time

The end

Launcher Data 

Begin job on node74 at 2009-05-12 00:17:28
IDJOB=1797952
IDBENCH=70803
IDSOLVER=651
FILE ID=node74/1797952-1242080248
PBS_JOBID= 9277627
Free space on /tmp= 102976 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT09/APPLICATIONS/bitverif/maxand/maxand064.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1797952-1242080248/watcher-1797952-1242080248 -o /tmp/evaluation-result-1797952-1242080248/solver-1797952-1242080248 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1797952-1242080248.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=882294436

node74.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		: 3000.233
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		: 3000.233
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:        916440 kB
Buffers:         72720 kB
Cached:         958732 kB
SwapCached:      31048 kB
Active:         245908 kB
Inactive:       818968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        916440 kB
SwapTotal:     4192956 kB
SwapFree:      4155404 kB
Dirty:            1412 kB
Writeback:           0 kB
Mapped:          14244 kB
Slab:            60428 kB
Committed_AS:   833904 kB
PageTables:       1444 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= 102976 MiB
End job on node74 at 2009-05-12 00:18:24