Trace number 1773612

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 8.37073 8.37292

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.37073
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
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	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.03	c |  Number of variables:         10794                                         |
0.00/0.03	c |  Number of clauses:           31995                                         |
0.00/0.03	c |  Parse time:                   0.03 s                                       |
0.09/0.18	c |  Simplification time:          0.15 s                                       |
0.09/0.18	c |                                                                             |
0.09/0.18	c ============================[ Search Statistics ]==============================
0.09/0.18	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.18	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.18	c ===============================================================================
0.09/0.19	c |       100 |    1763    13945    80433 |     5113      100     34 |  0.093 % |
0.19/0.20	c |       250 |    1763    13945    80433 |     5624      250     25 |  0.093 % |
0.19/0.21	c |       475 |    1763    13945    80433 |     6186      475     22 |  0.093 % |
0.19/0.23	c |       812 |    1763    13945    80433 |     6805      812     22 |  0.093 % |
0.19/0.26	c |      1318 |    1763    13945    80433 |     7486     1318     38 |  0.093 % |
0.29/0.31	c |      2077 |    1763    13945    80433 |     8234     2077     36 |  0.093 % |
0.29/0.37	c |      3216 |    1762    13912    80287 |     9058     1797     36 |  0.102 % |
0.39/0.49	c |      4924 |    1761    13907    80269 |     9964     3366     46 |  0.111 % |
0.69/0.74	c |      7486 |    1760    13874    80203 |    10960     5926     72 |  0.120 % |
1.09/1.16	c |     11330 |    1760    13874    80203 |    12056     9770     81 |  0.120 % |
1.79/1.87	c |     17096 |    1758    13806    80067 |    13262     9485     84 |  0.139 % |
2.99/3.04	c |     25745 |    1757    13773    80000 |    14588    11453     80 |  0.148 % |
4.99/5.07	c |     38719 |    1757    13773    80000 |    16047     9697     93 |  0.148 % |
7.59/7.64	c |     58180 |    1753    13672    79656 |    17652    10417     58 |  0.185 % |
8.29/8.36	c ===============================================================================
8.29/8.36	c restarts              : 190
8.29/8.36	c conflicts             : 63781          (7672 /sec)
8.29/8.36	c decisions             : 217511         (26163 /sec)
8.29/8.36	c propagations          : 8602231        (1034701 /sec)
8.29/8.36	c conflict literals     : 5187336        (29.40 % deleted)
8.29/8.36	c Memory used           : 24.13 MB
8.29/8.36	c CPU time              : 8.31374 s
8.29/8.36	c 
8.29/8.36	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-1773612-1241212517/watcher-1773612-1241212517 -o /tmp/evaluation-result-1773612-1241212517/solver-1773612-1241212517 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773612-1241212517.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: 0.99 0.97 0.99 3/64 31759
/proc/meminfo: memFree=1263256/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=7608 CPUtime=0
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 302 0 0 0 0 0 0 0 20 0 1 0 149285702 7790592 286 1992294400 4194304 5092341 548682068848 18446744073709551615 4515543 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 1902 287 63 219 0 1680 0

[startup+0.102236 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 31759
/proc/meminfo: memFree=1263256/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=11304 CPUtime=0.09
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 1472 0 0 0 9 0 0 0 21 0 1 0 149285702 11575296 1456 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 2826 1456 88 219 0 2604 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11304

[startup+0.201243 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 31759
/proc/meminfo: memFree=1263256/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=11468 CPUtime=0.19
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 1800 0 0 0 19 0 0 0 21 0 1 0 149285702 11743232 1304 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 2867 1304 101 219 0 2645 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 11468

[startup+0.301252 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 31759
/proc/meminfo: memFree=1263256/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=11468 CPUtime=0.29
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 1869 0 0 0 29 0 0 0 22 0 1 0 149285702 11743232 1373 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 2867 1373 101 219 0 2645 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11468

[startup+0.701284 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 31759
/proc/meminfo: memFree=1263256/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=11468 CPUtime=0.69
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 2228 0 0 0 69 0 0 0 25 0 1 0 149285702 11743232 1732 1992294400 4194304 5092341 548682068848 18446744073709551615 4265876 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 2867 1732 102 219 0 2645 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11468

[startup+1.50135 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 31760
/proc/meminfo: memFree=1255184/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=16656 CPUtime=1.49
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 3136 0 0 0 148 1 0 0 25 0 1 0 149285702 17055744 2640 1992294400 4194304 5092341 548682068848 18446744073709551615 4262248 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 4164 2641 102 219 0 3942 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16656

[startup+3.10148 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 31760
/proc/meminfo: memFree=1254288/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=16656 CPUtime=3.09
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 5267 0 0 0 307 2 0 0 25 0 1 0 149285702 17055744 3510 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 4164 3510 102 219 0 3942 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16656

[startup+6.30178 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 31760
/proc/meminfo: memFree=1242320/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=24704 CPUtime=6.29
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 10998 0 0 0 624 5 0 0 25 0 1 0 149285702 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4241984 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 6176 5366 102 219 0 5954 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 24704

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

[startup+6.40179 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 31760
/proc/meminfo: memFree=1242320/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=24704 CPUtime=6.39
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 10998 0 0 0 634 5 0 0 25 0 1 0 149285702 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4241380 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 6176 5366 102 219 0 5954 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 24704

[startup+7.20185 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 31760
/proc/meminfo: memFree=1241936/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=24704 CPUtime=7.19
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 10998 0 0 0 714 5 0 0 25 0 1 0 149285702 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4241075 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 6176 5366 102 219 0 5954 0
Current children cumulated CPU time (s) 7.19
Current children cumulated vsize (KiB) 24704

[startup+8.00192 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 31760
/proc/meminfo: memFree=1241936/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=24704 CPUtime=7.99
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 10998 0 0 0 794 5 0 0 25 0 1 0 149285702 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4249664 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 6176 5366 102 219 0 5954 0
Current children cumulated CPU time (s) 7.99
Current children cumulated vsize (KiB) 24704

[startup+8.20193 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 31760
/proc/meminfo: memFree=1241936/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=24704 CPUtime=8.19
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 10998 0 0 0 814 5 0 0 25 0 1 0 149285702 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 6176 5366 102 219 0 5954 0
Current children cumulated CPU time (s) 8.19
Current children cumulated vsize (KiB) 24704

[startup+8.30194 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 31760
/proc/meminfo: memFree=1241936/2055920 swapFree=4191900/4192956
[pid=31759] ppid=31757 vsize=24704 CPUtime=8.29
/proc/31759/stat : 31759 (minisat) R 31757 31759 31668 0 -1 4194304 10998 0 0 0 824 5 0 0 25 0 1 0 149285702 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4241042 0 0 4096 3 0 0 0 17 1 0 0
/proc/31759/statm: 6176 5366 102 219 0 5954 0
Current children cumulated CPU time (s) 8.29
Current children cumulated vsize (KiB) 24704

Child status: 20
Real time (s): 8.37292
CPU time (s): 8.37073
CPU user time (s): 8.31374
CPU system time (s): 0.056991
CPU usage (%): 99.9738
Max. virtual memory (cumulated for all children) (KiB): 24704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.31374
system time used= 0.056991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11008
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= 1
involuntary context switches= 15

runsolver used 0.006998 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node3 at 2009-05-01 23:15:17
IDJOB=1773612
IDBENCH=70759
IDSOLVER=608
FILE ID=node3/1773612-1241212517
PBS_JOBID= 9224726
Free space on /tmp= 66264 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773612-1241212517/watcher-1773612-1241212517 -o /tmp/evaluation-result-1773612-1241212517/solver-1773612-1241212517 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773612-1241212517.cnf

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

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=607181815

node3.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		: 3000.212
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		: 3000.212
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:       1263736 kB
Buffers:         81796 kB
Cached:         592756 kB
SwapCached:        416 kB
Active:          40368 kB
Inactive:       648172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1263736 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            1376 kB
Writeback:           0 kB
Mapped:          22344 kB
Slab:            89692 kB
Committed_AS:   746024 kB
PageTables:       1372 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= 66264 MiB
End job on node3 at 2009-05-01 23:15:25