Trace number 312543

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, and are wall clock time (not CPU 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
MXC 2007-02-08UNSAT 50.8833 50.9098

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/dated-10-15-u.cnf
MD5SUM3b92b02eda280b3d74433fa589c2d772
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark18.4502
Satisfiable
(Un)Satisfiability was proved
Number of variables193016
Number of clauses885873
Sum of the clauses size2034196
Maximum clause length10
Minimum clause length1
Number of clauses of size 116194
Number of clauses of size 2700175
Number of clauses of size 3133124
Number of clauses of size 44040
Number of clauses of size 516160
Number of clauses of size over 516180

Solver Data (download as text)

50.87/50.90	c MXC attempting /tmp/evaluation/312543-1176856564/instance-312543-1176856564.cnf
50.87/50.90	c 46672 assignments made, starting to guess now
50.87/50.90	c ===================================[MXC]=====================================
50.87/50.90	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
50.87/50.90	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
50.87/50.90	c =============================================================================
50.87/50.90	c |         0 |  140112   502436 |   46704       0       0     nan | 24.180 % |
50.87/50.90	c |       101 |  134742   481434 |   51374      77    1911    24.8 | 27.169 % |
50.87/50.90	c |       251 |  129873   460277 |   56511     190    8398    44.2 | 30.553 % |
50.87/50.90	c |       476 |  123614   435528 |   62163     376   20881    55.5 | 34.176 % |
50.87/50.90	c |       814 |  119461   417670 |   68379     667   51171    76.7 | 37.094 % |
50.87/50.90	c |      1320 |  107167   353509 |   75217    1065   62038    58.3 | 49.430 % |
50.87/50.90	c |      2079 |  104549   342338 |   82738    1781  117148    65.8 | 51.256 % |
50.87/50.90	c |      3221 |  102678   335762 |   91012    2909  205137    70.5 | 52.106 % |
50.87/50.90	c |      4929 |  100714   327339 |  100114    4566  336489    73.7 | 53.514 % |
50.87/50.90	c |      7491 |   50040   163479 |  110125    6110  304495    49.8 | 72.304 % |
50.87/50.90	c |     11335 |   43415   141772 |  121138    9042  409957    45.3 | 75.678 % |
50.87/50.90	c 50.870s elapsed
50.87/50.90	c restarts: 10
50.87/50.90	c decisions: 48745
50.87/50.90	c propagations: 65500198
50.87/50.90	c conflicts: 16928
50.87/50.90	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node57/watcher-312543-1176856564 -o ROOT/results/node57/solver-312543-1176856564 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/312543-1176856564/mxc /tmp/evaluation/312543-1176856564/instance-312543-1176856564.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): 2400 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: 0.99 0.98 0.98 3/64 6442
/proc/meminfo: memFree=1549312/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=16620 CPUtime=0
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 746 0 0 0 0 0 0 0 18 0 1 0 126792434 17018880 730 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 4155 737 42 122 0 4029 0

[startup+0.0970049 s]
/proc/loadavg: 0.99 0.98 0.98 3/64 6442
/proc/meminfo: memFree=1549312/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=39224 CPUtime=0.09
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 8731 0 0 0 5 4 0 0 18 0 1 0 126792434 40165376 8715 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 9806 8715 46 122 0 9680 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 39224

[startup+0.101005 s]
/proc/loadavg: 0.99 0.98 0.98 3/64 6442
/proc/meminfo: memFree=1549312/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=39356 CPUtime=0.09
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 8770 0 0 0 5 4 0 0 18 0 1 0 126792434 40300544 8754 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 9839 8755 46 122 0 9713 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 39356

[startup+0.302021 s]
/proc/loadavg: 0.99 0.98 0.98 3/64 6442
/proc/meminfo: memFree=1549312/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=46376 CPUtime=0.29
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 10503 0 0 0 25 4 0 0 19 0 1 0 126792434 47489024 10487 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134522424 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 11594 10487 46 122 0 11468 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 46376

[startup+0.701056 s]
/proc/loadavg: 0.99 0.98 0.98 3/64 6442
/proc/meminfo: memFree=1549312/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=39112 CPUtime=0.69
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 12570 0 0 0 64 5 0 0 22 0 1 0 126792434 40050688 8632 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134531594 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 9778 8632 59 122 0 9652 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 39112

[startup+1.50113 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1514808/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=39112 CPUtime=1.49
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 12595 0 0 0 144 5 0 0 25 0 1 0 126792434 40050688 8657 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 9778 8657 59 122 0 9652 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 39112

[startup+3.10126 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1514616/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=39112 CPUtime=3.09
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 12618 0 0 0 304 5 0 0 25 0 1 0 126792434 40050688 8680 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 9778 8680 59 122 0 9652 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 39112

[startup+6.30154 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1514360/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=39376 CPUtime=6.29
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 12687 0 0 0 624 5 0 0 25 0 1 0 126792434 40321024 8749 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519807 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 9844 8749 59 122 0 9718 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 39376

[startup+12.7011 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1513984/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=39640 CPUtime=12.68
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 12799 0 0 0 1263 5 0 0 25 0 1 0 126792434 40591360 8861 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134529754 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 9910 8861 59 122 0 9784 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 39640

[startup+25.5012 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1512704/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=40960 CPUtime=25.49
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 13153 0 0 0 2543 6 0 0 25 0 1 0 126792434 41943040 9215 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134531167 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 10240 9215 59 122 0 10114 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 40960

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

[startup+38.3013 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1512128/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=41488 CPUtime=38.28
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 13290 0 0 0 3822 6 0 0 25 0 1 0 126792434 42483712 9352 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 10372 9352 59 122 0 10246 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 41488

[startup+44.7019 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1511680/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=42016 CPUtime=44.68
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 13424 0 0 0 4462 6 0 0 25 0 1 0 126792434 43024384 9486 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 10504 9486 59 122 0 10378 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 42016

[startup+47.9012 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1511424/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=42148 CPUtime=47.88
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 13478 0 0 0 4782 6 0 0 25 0 1 0 126792434 43159552 9540 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 10537 9540 59 122 0 10411 0
Current children cumulated CPU time (s) 47.88
Current children cumulated vsize (KiB) 42148

[startup+49.5053 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1511296/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=42280 CPUtime=49.48
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 13501 0 0 0 4942 6 0 0 25 0 1 0 126792434 43294720 9563 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519605 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 10570 9563 59 122 0 10444 0
Current children cumulated CPU time (s) 49.48
Current children cumulated vsize (KiB) 42280

[startup+50.3014 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1511296/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=42280 CPUtime=50.28
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 13507 0 0 0 5022 6 0 0 25 0 1 0 126792434 43294720 9569 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134529589 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 10570 9569 59 122 0 10444 0
Current children cumulated CPU time (s) 50.28
Current children cumulated vsize (KiB) 42280

[startup+50.7014 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1511232/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=42280 CPUtime=50.68
/proc/6442/stat : 6442 (mxc) R 6440 6442 5623 0 -1 4194304 13512 0 0 0 5062 6 0 0 25 0 1 0 126792434 43294720 9574 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134530830 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 10570 9574 59 122 0 10444 0
Current children cumulated CPU time (s) 50.68
Current children cumulated vsize (KiB) 42280

[startup+50.9014 s]
/proc/loadavg: 0.99 0.98 0.98 2/65 6443
/proc/meminfo: memFree=1511232/2055920 swapFree=4174180/4192956
[pid=6442] ppid=6440 vsize=42280 CPUtime=50.87
/proc/6442/stat : 6442 (mxc) S 6440 6442 5623 0 -1 4194304 13532 0 0 0 5081 6 0 0 25 0 1 0 126792434 43294720 9594 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134550682 0 0 4096 0 0 0 0 17 1 0 0
/proc/6442/statm: 10570 9594 59 122 0 10444 0
Current children cumulated CPU time (s) 50.87
Current children cumulated vsize (KiB) 42280

Child status: 20
Real time (s): 50.9098
CPU time (s): 50.8833
CPU user time (s): 50.8113
CPU system time (s): 0.071989
CPU usage (%): 99.9479
Max. virtual memory (cumulated for all children) (KiB): 50064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 50.8113
system time used= 0.071989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13535
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= 8
involuntary context switches= 28

runsolver used 0.043993 second user time and 0.108983 second system time

The end

Launcher Data (download as text)

Begin job on node57 on Wed Apr 18 00:36:05 UTC 2007

IDJOB= 312543
IDBENCH= 20344
IDSOLVER= 107
FILE ID= node57/312543-1176856564

PBS_JOBID= 4590226

Free space on /tmp= 66497 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-unsat/dated-10-15-u.cnf
COMMAND LINE= /tmp/evaluation/312543-1176856564/mxc /tmp/evaluation/312543-1176856564/instance-312543-1176856564.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node57/watcher-312543-1176856564 -o ROOT/results/node57/solver-312543-1176856564 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/312543-1176856564/mxc /tmp/evaluation/312543-1176856564/instance-312543-1176856564.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  3b92b02eda280b3d74433fa589c2d772

RANDOM SEED= 206483064

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node57.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.239
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		: 3000.239
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:       1549720 kB
Buffers:         27492 kB
Cached:         417640 kB
SwapCached:      13052 kB
Active:         348716 kB
Inactive:       115332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1549720 kB
SwapTotal:     4192956 kB
SwapFree:      4174180 kB
Dirty:           16504 kB
Writeback:           0 kB
Mapped:          15468 kB
Slab:            28308 kB
Committed_AS:   840372 kB
PageTables:       1408 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= 66497 MiB

End job on node57 on Wed Apr 18 00:36:56 UTC 2007