Trace number 1589762

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-simp 070721UNSAT 15.6046 15.6092

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                                                |
0.00/0.04	|  Parsing time:         0.04         s                                       |
1.79/1.86	============================[ Search Statistics ]==============================
1.79/1.86	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
1.79/1.86	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
1.79/1.86	===============================================================================
1.79/1.86	|         0 |    1452    16631   241284 |     5543        0    nan |  0.000 % |
1.79/1.89	|       100 |    1452    16631   241284 |     6098      100     11 |  0.130 % |
1.89/1.90	|       250 |    1452    16631   241284 |     6707      250     18 |  0.130 % |
1.89/1.92	|       476 |    1452    16631   241284 |     7378      476     21 |  0.130 % |
1.89/1.94	|       815 |    1452    16631   241284 |     8116      815     35 |  0.130 % |
1.89/1.97	|      1323 |    1452    16631   241284 |     8928     1323     41 |  0.130 % |
1.99/2.01	|      2084 |    1452    16631   241284 |     9820     2084     46 |  0.130 % |
1.99/2.09	|      3231 |    1452    16631   241284 |    10803     3231     53 |  0.130 % |
2.20/2.20	|      4940 |    1452    16631   241284 |    11883     4940     54 |  0.130 % |
2.39/2.47	|      7502 |    1452    16631   241284 |    13071     7502     85 |  0.130 % |
2.79/2.81	|     11346 |    1452    16631   241284 |    14378    11346     78 |  0.130 % |
3.39/3.45	|     17114 |    1452    16631   241284 |    15816     9693    103 |  0.130 % |
4.59/4.62	|     25764 |    1452    16631   241284 |    17398    10396     94 |  0.130 % |
6.19/6.22	|     38742 |    1452    16631   241284 |    19138    14435    143 |  0.130 % |
9.79/9.89	|     58205 |    1451    16566   241151 |    21052    14431    155 |  0.137 % |
15.08/15.13	|     87398 |    1451    16566   241151 |    23157    11749     83 |  0.137 % |
15.58/15.60	===============================================================================
15.58/15.60	restarts              : 16
15.58/15.60	conflicts             : 90202          (5797 /sec)
15.58/15.60	decisions             : 224636         (1.74 % random) (14437 /sec)
15.58/15.60	propagations          : 5602579        (360071 /sec)
15.58/15.60	conflict literals     : 10859560       (20.84 % deleted)
15.58/15.60	Memory used           : 26.60 MB
15.58/15.60	CPU time              : 15.5596 s
15.58/15.60	
15.58/15.60	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-1589762-1239107994/watcher-1589762-1239107994 -o /tmp/evaluation-result-1589762-1239107994/solver-1589762-1239107994 -C 1200 -W 1800 -M 1800 --output-limit 1,15 minisat_static HOME/instance-1589762-1239107994.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
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: 1.00 1.00 1.00 2/69 24624
/proc/meminfo: memFree=1969952/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=2200 CPUtime=0
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 341 0 0 0 0 0 0 0 18 0 1 0 1183462531 2252800 326 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 550 327 65 178 0 370 0

[startup+0.069092 s]
/proc/loadavg: 1.00 1.00 1.00 2/69 24624
/proc/meminfo: memFree=1969952/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=6864 CPUtime=0.05
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 1405 0 0 0 5 0 0 0 18 0 1 0 1183462531 7028736 1390 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 1716 1390 81 178 0 1536 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6864

[startup+0.101095 s]
/proc/loadavg: 1.00 1.00 1.00 2/69 24624
/proc/meminfo: memFree=1969952/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=7920 CPUtime=0.09
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 1685 0 0 0 8 1 0 0 18 0 1 0 1183462531 8110080 1670 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 1980 1670 81 178 0 1800 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7920

[startup+0.301116 s]
/proc/loadavg: 1.00 1.00 1.00 2/69 24624
/proc/meminfo: memFree=1969952/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=13884 CPUtime=0.29
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 3176 0 0 0 28 1 0 0 19 0 1 0 1183462531 14217216 3161 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 3471 3161 81 178 0 3291 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13884

[startup+0.701156 s]
/proc/loadavg: 1.00 1.00 1.00 2/69 24624
/proc/meminfo: memFree=1969952/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=16840 CPUtime=0.68
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 3814 0 0 0 67 1 0 0 23 0 1 0 1183462531 17244160 3799 1992294400 134512640 135243866 4294956256 18446744073709551615 134523062 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 4210 3799 81 178 0 4030 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 16840

[startup+1.50124 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 24625
/proc/meminfo: memFree=1954776/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=17648 CPUtime=1.49
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 4045 0 0 0 147 2 0 0 25 0 1 0 1183462531 18071552 4030 1992294400 134512640 135243866 4294956256 18446744073709551615 134541936 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 4412 4030 81 178 0 4232 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 17648

[startup+3.1014 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 24625
/proc/meminfo: memFree=1954520/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=17588 CPUtime=3.09
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 4314 0 0 0 307 2 0 0 25 0 1 0 1183462531 18010112 4097 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 4397 4097 87 178 0 4217 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 17588

[startup+6.30174 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 24625
/proc/meminfo: memFree=1950296/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=22208 CPUtime=6.29
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 5473 0 0 0 626 3 0 0 25 0 1 0 1183462531 22740992 5256 1992294400 134512640 135243866 4294956256 18446744073709551615 134559577 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 5552 5256 87 178 0 5372 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 22208

[startup+12.7014 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 24625
/proc/meminfo: memFree=1944088/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=27236 CPUtime=12.68
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 6700 0 0 0 1265 3 0 0 25 0 1 0 1183462531 27889664 6483 1992294400 134512640 135243866 4294956256 18446744073709551615 134555680 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 6809 6483 87 178 0 6629 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 27236

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

[startup+14.3066 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 24625
/proc/meminfo: memFree=1944088/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=27236 CPUtime=14.29
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 6700 0 0 0 1426 3 0 0 25 0 1 0 1183462531 27889664 6483 1992294400 134512640 135243866 4294956256 18446744073709551615 134558404 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 6809 6483 87 178 0 6629 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 27236

[startup+15.1016 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 24625
/proc/meminfo: memFree=1944088/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=27236 CPUtime=15.08
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 6700 0 0 0 1505 3 0 0 25 0 1 0 1183462531 27889664 6483 1992294400 134512640 135243866 4294956256 18446744073709551615 134559530 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 6809 6483 87 178 0 6629 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 27236

[startup+15.5017 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 24625
/proc/meminfo: memFree=1944088/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=27236 CPUtime=15.48
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 6700 0 0 0 1545 3 0 0 25 0 1 0 1183462531 27889664 6483 1992294400 134512640 135243866 4294956256 18446744073709551615 134558438 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 6809 6483 87 178 0 6629 0
Current children cumulated CPU time (s) 15.48
Current children cumulated vsize (KiB) 27236

[startup+15.6017 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 24625
/proc/meminfo: memFree=1944088/2055920 swapFree=4171224/4192956
[pid=24624] ppid=24622 vsize=27236 CPUtime=15.58
/proc/24624/stat : 24624 (minisat_static) R 24622 24624 24418 0 -1 4194304 6700 0 0 0 1555 3 0 0 25 0 1 0 1183462531 27889664 6483 1992294400 134512640 135243866 4294956256 18446744073709551615 134565121 0 0 4096 3 0 0 0 17 1 0 0
/proc/24624/statm: 6809 6483 87 178 0 6629 0
Current children cumulated CPU time (s) 15.58
Current children cumulated vsize (KiB) 27236

Child status: 20
Real time (s): 15.6092
CPU time (s): 15.6046
CPU user time (s): 15.5596
CPU system time (s): 0.044993
CPU usage (%): 99.9706
Max. virtual memory (cumulated for all children) (KiB): 27236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.5596
system time used= 0.044993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6710
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= 20

runsolver used 0.019996 second user time and 0.044993 second system time

The end

Launcher Data 

Begin job on node44 at 2009-04-07 14:39:54
IDJOB=1589762
IDBENCH=70803
IDSOLVER=568
FILE ID=node44/1589762-1239107994
PBS_JOBID= 9110804
Free space on /tmp= 66536 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT09/APPLICATIONS/bitverif/maxand/maxand064.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1589762-1239107994/watcher-1589762-1239107994 -o /tmp/evaluation-result-1589762-1239107994/solver-1589762-1239107994 -C 1200 -W 1800 -M 1800 --output-limit 1,15  minisat_static HOME/instance-1589762-1239107994.cnf

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

MD5SUM BENCH= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=1527380598

node44.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		: 3000.241
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		: 3000.241
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:       1970432 kB
Buffers:          3168 kB
Cached:          20484 kB
SwapCached:      11436 kB
Active:          17720 kB
Inactive:        18760 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1970432 kB
SwapTotal:     4192956 kB
SwapFree:      4171224 kB
Dirty:            1636 kB
Writeback:           0 kB
Mapped:          17972 kB
Slab:            34408 kB
Committed_AS:  3312980 kB
PageTables:       1796 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= 66532 MiB
End job on node44 at 2009-04-07 14:40:10