Trace number 308117

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 2007-02-08SAT 5.16121 5.17734

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1455331099-09-SAT.cnf
MD5SUMc88c589a7c8f9b32a4b7d3cd9d764f32
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark5.16121
Satisfiable
(Un)Satisfiability was proved
Number of variables3494
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

5.11/5.17	c MXC attempting /tmp/evaluation/308117-1172516045/instance-308117-1172516045.cnf
5.11/5.17	c 0 assignments made, starting to guess now
5.11/5.17	c ===================================[MXC]=====================================
5.11/5.17	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
5.11/5.17	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
5.11/5.17	c =============================================================================
5.11/5.17	c |         0 |    6541    19623 |    2180       0       0     nan |  0.000 % |
5.11/5.17	c |       100 |    6448    19344 |    2398      94    1949    20.7 |  0.429 % |
5.11/5.17	c |       251 |    6448    19344 |    2637     243    4723    19.4 |  0.429 % |
5.11/5.17	c |       476 |    6448    19344 |    2901     463    8914    19.3 |  0.429 % |
5.11/5.17	c |       814 |    6448    19344 |    3191     799   17101    21.4 |  0.429 % |
5.11/5.17	c |      1321 |    6448    19344 |    3510    1303   29594    22.7 |  0.429 % |
5.11/5.17	c |      2080 |    6448    19344 |    3862    2061   49117    23.8 |  0.429 % |
5.11/5.17	c |      3220 |    6448    19344 |    4248    3200   78143    24.4 |  0.429 % |
5.11/5.17	c |      4929 |    6448    19344 |    4673    2785   65152    23.4 |  0.429 % |
5.11/5.17	c |      7492 |    6448    19344 |    5140    3010   68753    22.8 |  0.429 % |
5.11/5.17	c |     11337 |    6448    19344 |    5654    4280   94417    22.1 |  0.429 % |
5.11/5.17	c |     17103 |    6448    19344 |    6219    4388  103106    23.5 |  0.429 % |
5.11/5.17	c |     25754 |    6448    19344 |    6841    3710   77337    20.8 |  0.429 % |
5.11/5.17	c 5.150s elapsed
5.11/5.17	c restarts: 12
5.11/5.17	c decisions: 40300
5.11/5.17	c propagations: 11668694
5.11/5.17	c conflicts: 31137
5.11/5.17	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node70/watcher-308117-1172516045 -o ROOT/results/node70/solver-308117-1172516045 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/308117-1172516045/mxc /tmp/evaluation/308117-1172516045/instance-308117-1172516045.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 1.85 1.81 1.78 3/64 9674
/proc/meminfo: memFree=1959544/2055920 swapFree=4183020/4192956
[pid=9674] ppid=9672 vsize=1516 CPUtime=0
/proc/9674/stat : 9674 (mxc) R 9672 9674 9566 0 -1 4194304 234 0 0 0 0 0 0 0 18 0 1 0 234405185 1552384 218 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134691428 0 0 4096 0 0 0 0 17 1 0 0
/proc/9674/statm: 379 218 46 122 0 253 0

[startup+0.106715 s]
/proc/loadavg: 1.85 1.81 1.78 3/64 9674
/proc/meminfo: memFree=1959544/2055920 swapFree=4183020/4192956
[pid=9674] ppid=9672 vsize=1764 CPUtime=0.1
/proc/9674/stat : 9674 (mxc) R 9672 9674 9566 0 -1 4194304 324 0 0 0 10 0 0 0 18 0 1 0 234405185 1806336 271 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/9674/statm: 441 271 59 122 0 315 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1764

[startup+0.514787 s]
/proc/loadavg: 1.85 1.81 1.78 3/64 9674
/proc/meminfo: memFree=1959544/2055920 swapFree=4183020/4192956
[pid=9674] ppid=9672 vsize=2160 CPUtime=0.51
/proc/9674/stat : 9674 (mxc) R 9672 9674 9566 0 -1 4194304 430 0 0 0 51 0 0 0 21 0 1 0 234405185 2211840 377 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134531171 0 0 4096 0 0 0 0 17 1 0 0
/proc/9674/statm: 540 377 59 122 0 414 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2160

[startup+1.33494 s]
/proc/loadavg: 1.85 1.81 1.78 2/65 9675
/proc/meminfo: memFree=1958000/2055920 swapFree=4183020/4192956
[pid=9674] ppid=9672 vsize=2300 CPUtime=1.33
/proc/9674/stat : 9674 (mxc) R 9672 9674 9566 0 -1 4194304 487 0 0 0 133 0 0 0 25 0 1 0 234405185 2355200 432 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/9674/statm: 575 432 67 122 0 449 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2300

[startup+2.97423 s]
/proc/loadavg: 1.85 1.81 1.78 2/65 9675
/proc/meminfo: memFree=1957744/2055920 swapFree=4183020/4192956
[pid=9674] ppid=9672 vsize=2560 CPUtime=2.97
/proc/9674/stat : 9674 (mxc) R 9672 9674 9566 0 -1 4194304 555 0 0 0 297 0 0 0 25 0 1 0 234405185 2621440 500 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/9674/statm: 640 500 67 122 0 514 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 2560

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

[startup+3.28029 s]
/proc/loadavg: 1.85 1.81 1.78 2/65 9675
/proc/meminfo: memFree=1957744/2055920 swapFree=4183020/4192956
[pid=9674] ppid=9672 vsize=2692 CPUtime=3.27
/proc/9674/stat : 9674 (mxc) R 9672 9674 9566 0 -1 4194304 571 0 0 0 327 0 0 0 25 0 1 0 234405185 2756608 516 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519807 0 0 4096 0 0 0 0 17 1 0 0
/proc/9674/statm: 673 516 67 122 0 547 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 2692

[startup+4.09943 s]
/proc/loadavg: 1.85 1.81 1.78 2/65 9675
/proc/meminfo: memFree=1957552/2055920 swapFree=4183020/4192956
[pid=9674] ppid=9672 vsize=2692 CPUtime=4.09
/proc/9674/stat : 9674 (mxc) R 9672 9674 9566 0 -1 4194304 572 0 0 0 409 0 0 0 25 0 1 0 234405185 2756608 517 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530090 0 0 4096 0 0 0 0 17 1 0 0
/proc/9674/statm: 673 517 67 122 0 547 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 2692

[startup+4.91958 s]
/proc/loadavg: 1.78 1.79 1.78 2/65 9675
/proc/meminfo: memFree=1957552/2055920 swapFree=4183020/4192956
[pid=9674] ppid=9672 vsize=2812 CPUtime=4.91
/proc/9674/stat : 9674 (mxc) R 9672 9674 9566 0 -1 4194304 598 0 0 0 491 0 0 0 25 0 1 0 234405185 2879488 543 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530184 0 0 4096 0 0 0 0 17 1 0 0
/proc/9674/statm: 703 543 67 122 0 577 0
Current children cumulated CPU time (s) 4.91
Current children cumulated vsize (KiB) 2812

[startup+5.12362 s]
/proc/loadavg: 1.78 1.79 1.78 2/65 9675
/proc/meminfo: memFree=1957552/2055920 swapFree=4183020/4192956
[pid=9674] ppid=9672 vsize=2812 CPUtime=5.11
/proc/9674/stat : 9674 (mxc) R 9672 9674 9566 0 -1 4194304 598 0 0 0 511 0 0 0 25 0 1 0 234405185 2879488 543 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530053 0 0 4096 0 0 0 0 17 1 0 0
/proc/9674/statm: 703 543 67 122 0 577 0
Current children cumulated CPU time (s) 5.11
Current children cumulated vsize (KiB) 2812

Child status: 10
Real time (s): 5.17734
CPU time (s): 5.16121
CPU user time (s): 5.15721
CPU system time (s): 0.003999
CPU usage (%): 99.6886
Max. virtual memory (cumulated for all children) (KiB): 2812

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.15721
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 600
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= 12
involuntary context switches= 10

runsolver used 0.003999 second user time and 0.016997 second system time

The end

Launcher Data (download as text)

Begin job on node70 on Mon Feb 26 18:54:05 UTC 2007

IDJOB= 308117
IDBENCH= 20223
IDSOLVER= 107
FILE ID= node70/308117-1172516045

PBS_JOBID= 3971777

Free space on /tmp= 66561 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1455331099-09-SAT.cnf
COMMAND LINE= /tmp/evaluation/308117-1172516045/mxc /tmp/evaluation/308117-1172516045/instance-308117-1172516045.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node70/watcher-308117-1172516045 -o ROOT/results/node70/solver-308117-1172516045 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/308117-1172516045/mxc /tmp/evaluation/308117-1172516045/instance-308117-1172516045.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  c88c589a7c8f9b32a4b7d3cd9d764f32

RANDOM SEED= 213483527

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node70.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		: 3000.261
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		: 3000.261
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:       1959952 kB
Buffers:         17516 kB
Cached:          42660 kB
SwapCached:       3948 kB
Active:          33164 kB
Inactive:        36748 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1959952 kB
SwapTotal:     4192956 kB
SwapFree:      4183020 kB
Dirty:             728 kB
Writeback:           0 kB
Mapped:          15144 kB
Slab:            12104 kB
Committed_AS:   332216 kB
PageTables:       1396 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= 66561 MiB

End job on node70 on Mon Feb 26 18:54:10 UTC 2007