Trace number 292045

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 106.851 106.947

General information on the benchmark

Namerandom/OnTreshold/5SAT/v70/
unif-k5-r21.3-v70-c1491-S127192076-04.UNSAT.shuffled.cnf
MD5SUMa03c8caae5f60333b324125585e28090
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.94094
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)

106.84/106.94	c MXC attempting /tmp/evaluation/292045-1171749590/instance-292045-1171749590.cnf
106.84/106.94	c 0 assignments made, starting to guess now
106.84/106.94	c ===================================[MXC]=====================================
106.84/106.94	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
106.84/106.94	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
106.84/106.94	c =============================================================================
106.84/106.94	c |         0 |    1491     7455 |    1000       0       0     nan |  0.000 % |
106.84/106.94	c |       102 |    1491     7455 |    1100     102    1776    17.4 |  0.000 % |
106.84/106.94	c |       252 |    1491     7455 |    1210     252    4307    17.1 |  0.000 % |
106.84/106.94	c |       478 |    1491     7455 |    1331     478    8116    17.0 |  0.000 % |
106.84/106.94	c |       820 |    1491     7455 |    1464     820   13817    16.9 |  0.000 % |
106.84/106.94	c |      1326 |    1491     7455 |    1610    1326   21444    16.2 |  0.000 % |
106.84/106.94	c |      2085 |    1491     7455 |    1771    1280   19988    15.6 |  0.000 % |
106.84/106.94	c |      3226 |    1491     7455 |    1948    1535   24960    16.3 |  0.000 % |
106.84/106.94	c |      4934 |    1491     7455 |    2143    1294   19315    14.9 |  0.000 % |
106.84/106.94	c |      7500 |    1491     7455 |    2357    1715   25669    15.0 |  0.000 % |
106.84/106.94	c |     11344 |    1491     7455 |    2593    2022   30627    15.1 |  0.000 % |
106.84/106.94	c |     17110 |    1491     7455 |    2853    1302   19238    14.8 |  0.000 % |
106.84/106.94	c |     25759 |    1491     7455 |    3138    2818   41126    14.6 |  0.000 % |
106.84/106.94	c |     38735 |    1491     7455 |    3452    1675   24022    14.3 |  0.000 % |
106.84/106.94	c |     58197 |    1491     7455 |    3797    2155   31832    14.8 |  0.000 % |
106.84/106.94	c |     87391 |    1491     7455 |    4177    2882   44110    15.3 |  0.000 % |
106.84/106.94	c |    131180 |    1491     7455 |    4594    2828   39999    14.1 |  0.000 % |
106.84/106.94	c |    196864 |    1491     7455 |    5054    4214   61446    14.6 |  0.000 % |
106.84/106.94	c |    295390 |    1491     7455 |    5559    4227   62351    14.8 |  0.000 % |
106.84/106.94	c |    443179 |    1491     7455 |    6115    4769   64089    13.4 |  0.000 % |
106.84/106.94	c |    664862 |    1491     7455 |    6727    3345   45633    13.6 |  0.000 % |
106.84/106.94	c |    997387 |    1491     7455 |    7400    6404   92692    14.5 |  0.000 % |
106.84/106.94	c |   1496176 |    1437     7137 |    8140    5804   77351    13.3 |  1.429 % |
106.84/106.94	c 106.860s elapsed
106.84/106.94	c restarts: 22
106.84/106.94	c decisions: 2221654
106.84/106.94	c propagations: 26284708
106.84/106.94	c conflicts: 2017166
106.84/106.94	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node39/watcher-292045-1171749590 -o ROOT/results/node39/solver-292045-1171749590 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/292045-1171749590/mxc /tmp/evaluation/292045-1171749590/instance-292045-1171749590.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: 0.98 0.97 0.91 3/64 15322
/proc/meminfo: memFree=1205456/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=932 CPUtime=0
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 112 0 0 0 0 0 0 0 18 0 1 0 194914858 954368 96 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 233 96 57 122 0 107 0

[startup+0.107372 s]
/proc/loadavg: 0.98 0.97 0.91 3/64 15322
/proc/meminfo: memFree=1205456/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=1204 CPUtime=0.1
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 179 0 0 0 10 0 0 0 18 0 1 0 194914858 1232896 161 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 301 161 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.515441 s]
/proc/loadavg: 0.98 0.97 0.91 3/64 15322
/proc/meminfo: memFree=1205456/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=1332 CPUtime=0.51
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 212 0 0 0 51 0 0 0 21 0 1 0 194914858 1363968 194 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 333 194 67 122 0 207 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1332

[startup+1.33558 s]
/proc/loadavg: 0.98 0.97 0.91 2/65 15323
/proc/meminfo: memFree=1204744/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=1464 CPUtime=1.33
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 249 0 0 0 133 0 0 0 25 0 1 0 194914858 1499136 231 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 366 231 67 122 0 240 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1464

[startup+2.97386 s]
/proc/loadavg: 0.98 0.97 0.91 2/65 15323
/proc/meminfo: memFree=1204488/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=1580 CPUtime=2.97
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 279 0 0 0 297 0 0 0 25 0 1 0 194914858 1617920 261 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 395 261 67 122 0 269 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 1580

[startup+6.25042 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15323
/proc/meminfo: memFree=1204296/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=1828 CPUtime=6.24
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 328 0 0 0 624 0 0 0 25 0 1 0 194914858 1871872 310 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134534732 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 457 310 67 122 0 331 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1828

[startup+12.7065 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15323
/proc/meminfo: memFree=1204040/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=1940 CPUtime=12.69
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 377 0 0 0 1269 0 0 0 25 0 1 0 194914858 1986560 359 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 485 359 67 122 0 359 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1940

[startup+25.6067 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15323
/proc/meminfo: memFree=1203848/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=2156 CPUtime=25.59
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 418 0 0 0 2559 0 0 0 25 0 1 0 194914858 2207744 400 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 539 400 67 122 0 413 0
Current children cumulated CPU time (s) 25.59
Current children cumulated vsize (KiB) 2156

[startup+51.2131 s]
/proc/loadavg: 0.99 0.97 0.91 2/65 15323
/proc/meminfo: memFree=1203400/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=2604 CPUtime=51.19
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 524 0 0 0 5119 0 0 0 25 0 1 0 194914858 2666496 506 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519945 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 651 506 67 122 0 525 0
Current children cumulated CPU time (s) 51.19
Current children cumulated vsize (KiB) 2604

[startup+102.435 s]
/proc/loadavg: 0.99 0.97 0.91 2/71 15429
/proc/meminfo: memFree=1201528/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=2940 CPUtime=102.34
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 605 0 0 0 10234 0 0 0 25 0 1 0 194914858 3010560 587 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 735 587 67 122 0 609 0
Current children cumulated CPU time (s) 102.34
Current children cumulated vsize (KiB) 2940

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

[startup+104.899 s]
/proc/loadavg: 0.99 0.97 0.91 2/71 15431
/proc/meminfo: memFree=1201528/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=2940 CPUtime=104.8
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 609 0 0 0 10480 0 0 0 25 0 1 0 194914858 3010560 591 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519942 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 735 591 67 122 0 609 0
Current children cumulated CPU time (s) 104.8
Current children cumulated vsize (KiB) 2940

[startup+105.715 s]
/proc/loadavg: 0.99 0.97 0.91 2/71 15431
/proc/meminfo: memFree=1201528/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=2940 CPUtime=105.62
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 609 0 0 0 10562 0 0 0 25 0 1 0 194914858 3010560 591 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 735 591 67 122 0 609 0
Current children cumulated CPU time (s) 105.62
Current children cumulated vsize (KiB) 2940

[startup+106.536 s]
/proc/loadavg: 0.99 0.97 0.91 2/71 15431
/proc/meminfo: memFree=1201528/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=2940 CPUtime=106.44
/proc/15322/stat : 15322 (mxc) R 15320 15322 14754 0 -1 4194304 609 0 0 0 10644 0 0 0 25 0 1 0 194914858 3010560 591 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519899 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 735 591 67 122 0 609 0
Current children cumulated CPU time (s) 106.44
Current children cumulated vsize (KiB) 2940

[startup+106.944 s]
/proc/loadavg: 0.99 0.97 0.91 2/71 15431
/proc/meminfo: memFree=1201528/2055920 swapFree=4165040/4192956
[pid=15322] ppid=15320 vsize=2940 CPUtime=106.84
/proc/15322/stat : 15322 (mxc) S 15320 15322 14754 0 -1 4194304 609 0 0 0 10684 0 0 0 25 0 1 0 194914858 3010560 591 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134550682 0 0 4096 0 0 0 0 17 1 0 0
/proc/15322/statm: 735 591 67 122 0 609 0
Current children cumulated CPU time (s) 106.84
Current children cumulated vsize (KiB) 2940

Child status: 20
Real time (s): 106.947
CPU time (s): 106.851
CPU user time (s): 106.841
CPU system time (s): 0.009998
CPU usage (%): 99.9103
Max. virtual memory (cumulated for all children) (KiB): 2940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 106.841
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 610
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= 419

runsolver used 0.088986 second user time and 0.236963 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Sat Feb 17 21:59:50 UTC 2007

IDJOB= 292045
IDBENCH= 19830
IDSOLVER= 107
FILE ID= node39/292045-1171749590

PBS_JOBID= 3839471

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-S127192076-04.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/292045-1171749590/mxc /tmp/evaluation/292045-1171749590/instance-292045-1171749590.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-292045-1171749590 -o ROOT/results/node39/solver-292045-1171749590 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/292045-1171749590/mxc /tmp/evaluation/292045-1171749590/instance-292045-1171749590.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  a03c8caae5f60333b324125585e28090

RANDOM SEED= 744967363

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.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		: 3000.285
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		: 3000.285
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:       1205800 kB
Buffers:         31824 kB
Cached:         727124 kB
SwapCached:      22168 kB
Active:         638004 kB
Inactive:       148932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1205800 kB
SwapTotal:     4192956 kB
SwapFree:      4165040 kB
Dirty:             608 kB
Writeback:           0 kB
Mapped:          15232 kB
Slab:            49232 kB
Committed_AS:   484784 kB
PageTables:       1412 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 node39 on Sat Feb 17 22:01:37 UTC 2007