Trace number 1553345

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 8.36073 8.36188

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 benchmark7.59684
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                                       |
0.10/0.18	c |  Simplification time:          0.15 s                                       |
0.10/0.18	c |                                                                             |
0.10/0.18	c ============================[ Search Statistics ]==============================
0.10/0.18	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.10/0.18	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.10/0.18	c ===============================================================================
0.10/0.19	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 % |
1.79/1.88	c |     17096 |    1758    13806    80067 |    13262     9485     84 |  0.139 % |
2.99/3.05	c |     25745 |    1757    13773    80000 |    14588    11453     80 |  0.148 % |
4.99/5.07	c |     38719 |    1757    13773    80000 |    16047     9697     93 |  0.148 % |
7.59/7.62	c |     58180 |    1753    13672    79656 |    17652    10417     58 |  0.185 % |
8.29/8.35	c ===============================================================================
8.29/8.35	c restarts              : 190
8.29/8.35	c conflicts             : 63781          (7689 /sec)
8.29/8.35	c decisions             : 217511         (26223 /sec)
8.29/8.35	c propagations          : 8602231        (1037071 /sec)
8.29/8.35	c conflict literals     : 5187336        (29.40 % deleted)
8.29/8.35	c Memory used           : 24.13 MB
8.29/8.35	c CPU time              : 8.29474 s
8.29/8.35	c 
8.29/8.35	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-1553345-1238713821/watcher-1553345-1238713821 -o /tmp/evaluation-result-1553345-1238713821/solver-1553345-1238713821 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1553345-1238713821.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 3/64 12855
/proc/meminfo: memFree=1023584/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=7608 CPUtime=0
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 305 0 0 0 0 0 0 0 18 0 1 0 1144044231 7790592 289 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/statm: 1902 289 63 219 0 1680 0

[startup+0.106224 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12855
/proc/meminfo: memFree=1023584/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=11304 CPUtime=0.1
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 1487 0 0 0 9 1 0 0 18 0 1 0 1144044231 11575296 1471 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/statm: 2826 1471 88 219 0 2604 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11304

[startup+0.201232 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12855
/proc/meminfo: memFree=1023584/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=11468 CPUtime=0.19
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 1800 0 0 0 18 1 0 0 18 0 1 0 1144044231 11743232 1304 1992294400 4194304 5092341 548682068848 18446744073709551615 4241456 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/statm: 2867 1304 101 219 0 2645 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 11468

[startup+0.301241 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12855
/proc/meminfo: memFree=1023584/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=11468 CPUtime=0.29
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 1869 0 0 0 28 1 0 0 19 0 1 0 1144044231 11743232 1373 1992294400 4194304 5092341 548682068848 18446744073709551615 4244035 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/statm: 2867 1373 101 219 0 2645 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11468

[startup+0.701275 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12855
/proc/meminfo: memFree=1023584/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=11468 CPUtime=0.69
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 2224 0 0 0 68 1 0 0 22 0 1 0 1144044231 11743232 1728 1992294400 4194304 5092341 548682068848 18446744073709551615 4241309 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/statm: 2867 1728 102 219 0 2645 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11468

[startup+1.50134 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12856
/proc/meminfo: memFree=1015512/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=11468 CPUtime=1.49
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 2963 0 0 0 148 1 0 0 25 0 1 0 1144044231 11743232 2467 1992294400 4194304 5092341 548682068848 18446744073709551615 4252080 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/statm: 2867 2467 102 219 0 2645 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11468

[startup+3.10149 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12856
/proc/meminfo: memFree=1014616/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=16656 CPUtime=3.09
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 5258 0 0 0 306 3 0 0 25 0 1 0 1144044231 17055744 3501 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/statm: 4164 3501 102 219 0 3942 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16656

[startup+6.30177 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12856
/proc/meminfo: memFree=1002584/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=24704 CPUtime=6.3
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 10998 0 0 0 624 6 0 0 25 0 1 0 1144044231 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/statm: 6176 5366 102 219 0 5954 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 24704

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

[startup+6.40278 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12856
/proc/meminfo: memFree=1002584/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=24704 CPUtime=6.4
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 10998 0 0 0 634 6 0 0 25 0 1 0 1144044231 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4241101 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/statm: 6176 5366 102 219 0 5954 0
Current children cumulated CPU time (s) 6.4
Current children cumulated vsize (KiB) 24704

[startup+7.20185 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12856
/proc/meminfo: memFree=1002200/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=24704 CPUtime=7.19
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 10998 0 0 0 713 6 0 0 25 0 1 0 1144044231 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/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: 1.00 1.00 1.00 2/65 12856
/proc/meminfo: memFree=1002200/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=24704 CPUtime=7.99
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 10998 0 0 0 793 6 0 0 25 0 1 0 1144044231 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4249920 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/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: 1.00 1.00 1.00 2/65 12856
/proc/meminfo: memFree=1002200/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=24704 CPUtime=8.19
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 10998 0 0 0 813 6 0 0 25 0 1 0 1144044231 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4250061 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/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: 1.00 1.00 1.00 2/65 12856
/proc/meminfo: memFree=1002200/2055920 swapFree=4177016/4192956
[pid=12855] ppid=12853 vsize=24704 CPUtime=8.29
/proc/12855/stat : 12855 (minisat) R 12853 12855 12646 0 -1 4194304 10998 0 0 0 823 6 0 0 25 0 1 0 1144044231 25296896 5366 1992294400 4194304 5092341 548682068848 18446744073709551615 4244035 0 0 4096 3 0 0 0 17 1 0 0
/proc/12855/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): 8.36188
CPU time (s): 8.36073
CPU user time (s): 8.29474
CPU system time (s): 0.065989
CPU usage (%): 99.9862
Max. virtual memory (cumulated for all children) (KiB): 24704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.29474
system time used= 0.065989
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= 2
involuntary context switches= 12

runsolver used 0.016997 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node50 at 2009-04-03 01:10:21
IDJOB=1553345
IDBENCH=70759
IDSOLVER=546
FILE ID=node50/1553345-1238713821
PBS_JOBID= 9085294
Free space on /tmp= 64184 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-1553345-1238713821/watcher-1553345-1238713821 -o /tmp/evaluation-result-1553345-1238713821/solver-1553345-1238713821 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1553345-1238713821.cnf

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

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=1206563073

node50.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		: 3000.238
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		: 3000.238
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:       1024064 kB
Buffers:        112492 kB
Cached:         807428 kB
SwapCached:      10184 kB
Active:         293876 kB
Inactive:       637980 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1024064 kB
SwapTotal:     4192956 kB
SwapFree:      4177016 kB
Dirty:            1376 kB
Writeback:           0 kB
Mapped:          17444 kB
Slab:            85984 kB
Committed_AS:  3338788 kB
PageTables:       1456 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= 64180 MiB
End job on node50 at 2009-04-03 01:10:30