Trace number 291963

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 9.42657 9.44546

General information on the benchmark

Namerandom/OnTreshold/5SAT/v70/
unif-k5-r21.3-v70-c1491-S236549621-14.SAT.shuffled.cnf
MD5SUMec2a91fcfd5fed5b7cf0df71c166ca24
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses1491
Sum of the clauses size7455
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51491
Number of clauses of size over 50

Solver Data (download as text)

9.42/9.44	c MXC attempting /tmp/evaluation/291963-1171749020/instance-291963-1171749020.cnf
9.42/9.44	c 0 assignments made, starting to guess now
9.42/9.44	c ===================================[MXC]=====================================
9.42/9.44	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
9.42/9.44	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
9.42/9.44	c =============================================================================
9.42/9.44	c |         0 |    1491     7455 |    1000       0       0     nan |  0.000 % |
9.42/9.44	c |       101 |    1491     7455 |    1100     101    1838    18.2 |  0.000 % |
9.42/9.44	c |       251 |    1491     7455 |    1210     251    4215    16.8 |  0.000 % |
9.42/9.44	c |       476 |    1491     7455 |    1331     476    8037    16.9 |  0.000 % |
9.42/9.44	c |       814 |    1491     7455 |    1464     814   13630    16.7 |  0.000 % |
9.42/9.44	c |      1320 |    1491     7455 |    1610    1320   21995    16.7 |  0.000 % |
9.42/9.44	c |      2079 |    1491     7455 |    1771    1273   20050    15.8 |  0.000 % |
9.42/9.44	c |      3218 |    1491     7455 |    1948    1526   22897    15.0 |  0.000 % |
9.42/9.44	c |      4926 |    1491     7455 |    2143    1283   18884    14.7 |  0.000 % |
9.42/9.44	c |      7489 |    1491     7455 |    2357    1702   26354    15.5 |  0.000 % |
9.42/9.44	c |     11333 |    1491     7455 |    2593    2011   31272    15.6 |  0.000 % |
9.42/9.44	c |     17099 |    1491     7455 |    2853    2590   41194    15.9 |  0.000 % |
9.42/9.44	c |     25749 |    1491     7455 |    3138    2678   41040    15.3 |  0.000 % |
9.42/9.44	c |     38723 |    1491     7455 |    3452    3099   47011    15.2 |  0.000 % |
9.42/9.44	c |     58185 |    1491     7455 |    3797    1851   27013    14.6 |  0.000 % |
9.42/9.44	c |     87377 |    1491     7455 |    4177    2569   35768    13.9 |  0.000 % |
9.42/9.44	c |    131167 |    1491     7455 |    4594    2514   34797    13.8 |  0.000 % |
9.42/9.44	c |    196851 |    1491     7455 |    5054    3921   56146    14.3 |  0.000 % |
9.42/9.44	c 9.420s elapsed
9.42/9.44	c restarts: 17
9.42/9.44	c decisions: 254208
9.42/9.44	c propagations: 3033199
9.42/9.44	c conflicts: 230447
9.42/9.44	s SATISFIABLE
9.42/9.44	v -13 -52 -42 -6 19 -62 59 -45 -24 22 68 -41 43 -4 30 -58 -47 -16 66 56 33 -40 7 -65 48 -5 -34 44 23 69 53 -31 -50 64 -35 -39 -29 10 3 -60 -9 2 11 -21 -36 46 20 -32 -61 -12 70 -18 -14 -25 15 67 49 -51 37 -54 38 -28 8 -1 55 -17 26 27 -63 57 0

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/node43/watcher-291963-1171749020 -o ROOT/results/node43/solver-291963-1171749020 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/291963-1171749020/mxc /tmp/evaluation/291963-1171749020/instance-291963-1171749020.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: 0.85 0.95 0.90 2/64 4079
/proc/meminfo: memFree=604144/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1064 CPUtime=0
/proc/4079/stat : 4079 (mxc) R 4077 4079 3376 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 194858056 1089536 103 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 266 103 59 122 0 140 0

[startup+0.111124 s]
/proc/loadavg: 0.85 0.95 0.90 2/64 4079
/proc/meminfo: memFree=604144/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1200 CPUtime=0.1
/proc/4079/stat : 4079 (mxc) R 4077 4079 3376 0 -1 4194304 177 0 0 0 10 0 0 0 18 0 1 0 194858056 1228800 159 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519587 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 300 159 67 122 0 174 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1200

[startup+0.519192 s]
/proc/loadavg: 0.85 0.95 0.90 2/64 4079
/proc/meminfo: memFree=604144/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1332 CPUtime=0.51
/proc/4079/stat : 4079 (mxc) R 4077 4079 3376 0 -1 4194304 215 0 0 0 51 0 0 0 21 0 1 0 194858056 1363968 197 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 333 197 67 122 0 207 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1332

[startup+1.33933 s]
/proc/loadavg: 0.85 0.95 0.90 2/65 4080
/proc/meminfo: memFree=603560/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1456 CPUtime=1.33
/proc/4079/stat : 4079 (mxc) R 4077 4079 3376 0 -1 4194304 250 0 0 0 133 0 0 0 25 0 1 0 194858056 1490944 232 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 364 232 67 122 0 238 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1456

[startup+2.9776 s]
/proc/loadavg: 0.85 0.95 0.90 2/65 4080
/proc/meminfo: memFree=603304/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1572 CPUtime=2.97
/proc/4079/stat : 4079 (mxc) R 4077 4079 3376 0 -1 4194304 280 0 0 0 297 0 0 0 25 0 1 0 194858056 1609728 262 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519992 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 393 262 67 122 0 267 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 1572

[startup+6.25414 s]
/proc/loadavg: 0.86 0.95 0.90 2/65 4080
/proc/meminfo: memFree=603112/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1828 CPUtime=6.25
/proc/4079/stat : 4079 (mxc) R 4077 4079 3376 0 -1 4194304 321 0 0 0 625 0 0 0 25 0 1 0 194858056 1871872 303 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519284 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 457 303 67 122 0 331 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 1828

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

[startup+6.56119 s]
/proc/loadavg: 0.86 0.95 0.90 2/65 4080
/proc/meminfo: memFree=603112/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1828 CPUtime=6.55
/proc/4079/stat : 4079 (mxc) R 4077 4079 3376 0 -1 4194304 326 0 0 0 655 0 0 0 25 0 1 0 194858056 1871872 308 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 457 308 67 122 0 331 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 1828

[startup+8.20347 s]
/proc/loadavg: 0.86 0.95 0.90 2/65 4080
/proc/meminfo: memFree=603048/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1828 CPUtime=8.19
/proc/4079/stat : 4079 (mxc) R 4077 4079 3376 0 -1 4194304 343 0 0 0 819 0 0 0 25 0 1 0 194858056 1871872 325 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 457 325 67 122 0 331 0
Current children cumulated CPU time (s) 8.19
Current children cumulated vsize (KiB) 1828

[startup+9.0196 s]
/proc/loadavg: 0.86 0.95 0.90 2/65 4080
/proc/meminfo: memFree=602984/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1944 CPUtime=9.01
/proc/4079/stat : 4079 (mxc) R 4077 4079 3376 0 -1 4194304 357 0 0 0 901 0 0 0 25 0 1 0 194858056 1990656 339 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 486 339 67 122 0 360 0
Current children cumulated CPU time (s) 9.01
Current children cumulated vsize (KiB) 1944

[startup+9.43167 s]
/proc/loadavg: 0.86 0.95 0.90 2/65 4080
/proc/meminfo: memFree=602984/2055920 swapFree=4183376/4192956
[pid=4079] ppid=4077 vsize=1944 CPUtime=9.42
/proc/4079/stat : 4079 (mxc) S 4077 4079 3376 0 -1 4194304 361 0 0 0 942 0 0 0 25 0 1 0 194858056 1990656 343 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134550682 0 0 4096 0 0 0 0 17 1 0 0
/proc/4079/statm: 486 343 67 122 0 360 0
Current children cumulated CPU time (s) 9.42
Current children cumulated vsize (KiB) 1944

Child status: 10
Real time (s): 9.44546
CPU time (s): 9.42657
CPU user time (s): 9.42557
CPU system time (s): 0.000999
CPU usage (%): 99.8
Max. virtual memory (cumulated for all children) (KiB): 1944

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.42557
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 363
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= 9
involuntary context switches= 10

runsolver used 0.010998 second user time and 0.020996 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Sat Feb 17 21:50:20 UTC 2007

IDJOB= 291963
IDBENCH= 19828
IDSOLVER= 107
FILE ID= node43/291963-1171749020

PBS_JOBID= 3839467

Free space on /tmp= 66564 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v70/unif-k5-r21.3-v70-c1491-S236549621-14.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/291963-1171749020/mxc /tmp/evaluation/291963-1171749020/instance-291963-1171749020.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-291963-1171749020 -o ROOT/results/node43/solver-291963-1171749020 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/291963-1171749020/mxc /tmp/evaluation/291963-1171749020/instance-291963-1171749020.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  ec2a91fcfd5fed5b7cf0df71c166ca24

RANDOM SEED= 344284397

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node43.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		: 3000.281
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		: 3000.281
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:        604616 kB
Buffers:         50056 kB
Cached:        1280356 kB
SwapCached:       4020 kB
Active:         807916 kB
Inactive:       532516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        604616 kB
SwapTotal:     4192956 kB
SwapFree:      4183376 kB
Dirty:             728 kB
Writeback:           0 kB
Mapped:          15332 kB
Slab:            96896 kB
Committed_AS:   482556 kB
PageTables:       1392 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= 66564 MiB

End job on node43 on Sat Feb 17 21:50:30 UTC 2007