Trace number 292291

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 119.418 119.457

General information on the benchmark

Namerandom/OnTreshold/5SAT/v70/
unif-k5-r21.3-v70-c1491-S1350256608-20.UNSAT.shuffled.cnf
MD5SUM73234f08849e6c79dc5c1c40a78e1406
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.31789
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)

119.41/119.45	c MXC attempting /tmp/evaluation/292291-1171751819/instance-292291-1171751819.cnf
119.41/119.45	c 0 assignments made, starting to guess now
119.41/119.45	c ===================================[MXC]=====================================
119.41/119.45	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
119.41/119.45	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
119.41/119.45	c =============================================================================
119.41/119.45	c |         0 |    1491     7455 |    1000       0       0     nan |  0.000 % |
119.41/119.45	c |       100 |    1491     7455 |    1100     100    1811    18.1 |  0.000 % |
119.41/119.45	c |       251 |    1491     7455 |    1210     251    4405    17.5 |  0.000 % |
119.41/119.45	c |       477 |    1491     7455 |    1331     477    8252    17.3 |  0.000 % |
119.41/119.45	c |       814 |    1491     7455 |    1464     814   13403    16.5 |  0.000 % |
119.41/119.45	c |      1320 |    1491     7455 |    1610    1320   21486    16.3 |  0.000 % |
119.41/119.45	c |      2080 |    1491     7455 |    1771    1275   20047    15.7 |  0.000 % |
119.41/119.45	c |      3221 |    1491     7455 |    1948    1530   24748    16.2 |  0.000 % |
119.41/119.45	c |      4931 |    1491     7455 |    2143    1289   19724    15.3 |  0.000 % |
119.41/119.45	c |      7494 |    1491     7455 |    2357    1707   26289    15.4 |  0.000 % |
119.41/119.45	c |     11341 |    1491     7455 |    2593    2017   32492    16.1 |  0.000 % |
119.41/119.45	c |     17107 |    1491     7455 |    2853    2595   37383    14.4 |  0.000 % |
119.41/119.45	c |     25756 |    1491     7455 |    3138    2684   38654    14.4 |  0.000 % |
119.41/119.45	c |     38732 |    1491     7455 |    3452    3107   48561    15.6 |  0.000 % |
119.41/119.45	c |     58193 |    1491     7455 |    3797    1861   24642    13.2 |  0.000 % |
119.41/119.45	c |     87385 |    1491     7455 |    4177    2585   39024    15.1 |  0.000 % |
119.41/119.45	c |    131175 |    1491     7455 |    4594    2531   38353    15.2 |  0.000 % |
119.41/119.45	c |    196859 |    1491     7455 |    5054    3925   58527    14.9 |  0.000 % |
119.41/119.45	c |    295386 |    1491     7455 |    5559    3945   53201    13.5 |  0.000 % |
119.41/119.45	c |    443176 |    1491     7455 |    6115    4481   62593    14.0 |  0.000 % |
119.41/119.45	c |    664859 |    1491     7455 |    6727    3072   37909    12.3 |  0.000 % |
119.41/119.45	c |    997385 |    1491     7455 |    7400    6149   77234    12.6 |  0.000 % |
119.41/119.45	c |   1496173 |    1491     7455 |    8140    5617   66792    11.9 |  0.000 % |
119.41/119.45	c 119.430s elapsed
119.41/119.45	c restarts: 22
119.41/119.45	c decisions: 2425303
119.41/119.45	c propagations: 28677552
119.41/119.45	c conflicts: 2202134
119.41/119.45	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/node22/watcher-292291-1171751819 -o ROOT/results/node22/solver-292291-1171751819 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/292291-1171751819/mxc /tmp/evaluation/292291-1171751819/instance-292291-1171751819.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 0.98 0.93 3/77 11914
/proc/meminfo: memFree=854768/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=932 CPUtime=0
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 114 0 0 0 0 0 0 0 18 0 1 0 195135802 954368 98 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134534112 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 233 98 59 122 0 107 0

[startup+0.107415 s]
/proc/loadavg: 0.98 0.98 0.93 3/77 11914
/proc/meminfo: memFree=854768/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=1204 CPUtime=0.1
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 179 0 0 0 10 0 0 0 18 0 1 0 195135802 1232896 161 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 301 161 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.515445 s]
/proc/loadavg: 0.98 0.98 0.93 3/77 11914
/proc/meminfo: memFree=854768/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=1336 CPUtime=0.51
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 213 0 0 0 51 0 0 0 21 0 1 0 195135802 1368064 195 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 334 195 67 122 0 208 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1336

[startup+1.33551 s]
/proc/loadavg: 0.98 0.98 0.93 2/78 11915
/proc/meminfo: memFree=854120/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=1460 CPUtime=1.33
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 246 0 0 0 133 0 0 0 25 0 1 0 195135802 1495040 228 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134531538 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 365 228 67 122 0 239 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1460

[startup+2.97163 s]
/proc/loadavg: 0.98 0.98 0.93 2/78 11915
/proc/meminfo: memFree=853928/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=1592 CPUtime=2.96
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 275 0 0 0 296 0 0 0 25 0 1 0 195135802 1630208 257 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134529717 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 398 257 67 122 0 272 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1592

[startup+6.25287 s]
/proc/loadavg: 0.99 0.98 0.93 2/78 11915
/proc/meminfo: memFree=853608/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=1828 CPUtime=6.24
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 326 0 0 0 624 0 0 0 25 0 1 0 195135802 1871872 308 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519246 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 457 308 67 122 0 331 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1828

[startup+12.7033 s]
/proc/loadavg: 0.99 0.98 0.93 2/78 11915
/proc/meminfo: memFree=853352/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2052 CPUtime=12.69
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 378 0 0 0 1269 0 0 0 25 0 1 0 195135802 2101248 360 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 513 360 67 122 0 387 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2052

[startup+25.5103 s]
/proc/loadavg: 0.99 0.98 0.93 2/78 11915
/proc/meminfo: memFree=853160/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2168 CPUtime=25.49
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 427 0 0 0 2549 0 0 0 25 0 1 0 195135802 2220032 409 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519590 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 542 409 67 122 0 416 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 2168

[startup+51.1222 s]
/proc/loadavg: 1.07 1.00 0.94 2/78 11915
/proc/meminfo: memFree=852776/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2512 CPUtime=51.1
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 513 0 0 0 5110 0 0 0 25 0 1 0 195135802 2572288 495 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519287 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 628 495 67 122 0 502 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 2512

[startup+102.337 s]
/proc/loadavg: 1.03 1.00 0.94 2/78 11915
/proc/meminfo: memFree=852328/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2960 CPUtime=102.31
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 630 0 0 0 10230 1 0 0 25 0 1 0 195135802 3031040 612 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134531171 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 740 612 67 122 0 614 0
Current children cumulated CPU time (s) 102.31
Current children cumulated vsize (KiB) 2960

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

[startup+104.899 s]
/proc/loadavg: 1.03 1.00 0.94 2/78 11915
/proc/meminfo: memFree=852328/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2960 CPUtime=104.87
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 630 0 0 0 10486 1 0 0 25 0 1 0 195135802 3031040 612 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 740 612 67 122 0 614 0
Current children cumulated CPU time (s) 104.87
Current children cumulated vsize (KiB) 2960

[startup+111.454 s]
/proc/loadavg: 1.02 1.00 0.94 2/78 11915
/proc/meminfo: memFree=852328/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2960 CPUtime=111.42
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 634 0 0 0 11141 1 0 0 25 0 1 0 195135802 3031040 616 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134534791 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 740 616 67 122 0 614 0
Current children cumulated CPU time (s) 111.42
Current children cumulated vsize (KiB) 2960

[startup+114.73 s]
/proc/loadavg: 1.02 1.00 0.94 2/78 11915
/proc/meminfo: memFree=852264/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2960 CPUtime=114.7
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 634 0 0 0 11469 1 0 0 25 0 1 0 195135802 3031040 616 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519143 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 740 616 67 122 0 614 0
Current children cumulated CPU time (s) 114.7
Current children cumulated vsize (KiB) 2960

[startup+118.013 s]
/proc/loadavg: 1.02 1.00 0.94 2/78 11915
/proc/meminfo: memFree=852264/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2960 CPUtime=117.98
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 634 0 0 0 11797 1 0 0 25 0 1 0 195135802 3031040 616 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 740 616 67 122 0 614 0
Current children cumulated CPU time (s) 117.98
Current children cumulated vsize (KiB) 2960

[startup+118.833 s]
/proc/loadavg: 1.02 1.00 0.94 2/78 11915
/proc/meminfo: memFree=852264/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2960 CPUtime=118.8
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 634 0 0 0 11879 1 0 0 25 0 1 0 195135802 3031040 616 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519229 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 740 616 67 122 0 614 0
Current children cumulated CPU time (s) 118.8
Current children cumulated vsize (KiB) 2960

[startup+119.241 s]
/proc/loadavg: 1.02 1.00 0.94 2/78 11915
/proc/meminfo: memFree=852264/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2960 CPUtime=119.21
/proc/11914/stat : 11914 (mxc) R 11912 11914 11114 0 -1 4194304 634 0 0 0 11920 1 0 0 25 0 1 0 195135802 3031040 616 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519212 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 740 616 67 122 0 614 0
Current children cumulated CPU time (s) 119.21
Current children cumulated vsize (KiB) 2960

[startup+119.445 s]
/proc/loadavg: 1.02 1.00 0.94 1/78 11915
/proc/meminfo: memFree=852264/2055920 swapFree=4121028/4192956
[pid=11914] ppid=11912 vsize=2960 CPUtime=119.41
/proc/11914/stat : 11914 (mxc) S 11912 11914 11114 0 -1 4194304 634 0 0 0 11940 1 0 0 25 0 1 0 195135802 3031040 616 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134550682 0 0 4096 0 0 0 0 17 1 0 0
/proc/11914/statm: 740 616 67 122 0 614 0
Current children cumulated CPU time (s) 119.41
Current children cumulated vsize (KiB) 2960

Child status: 20
Real time (s): 119.457
CPU time (s): 119.418
CPU user time (s): 119.405
CPU system time (s): 0.012998
CPU usage (%): 99.967
Max. virtual memory (cumulated for all children) (KiB): 2960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 119.405
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 635
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= 163

runsolver used 0.137979 second user time and 0.278957 second system time

The end

Launcher Data (download as text)

Begin job on node22 on Sat Feb 17 22:36:59 UTC 2007

IDJOB= 292291
IDBENCH= 19836
IDSOLVER= 107
FILE ID= node22/292291-1171751819

PBS_JOBID= 3839481

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-S1350256608-20.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/292291-1171751819/mxc /tmp/evaluation/292291-1171751819/instance-292291-1171751819.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node22/watcher-292291-1171751819 -o ROOT/results/node22/solver-292291-1171751819 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/292291-1171751819/mxc /tmp/evaluation/292291-1171751819/instance-292291-1171751819.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  73234f08849e6c79dc5c1c40a78e1406

RANDOM SEED= 29522573

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node22.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		: 3000.235
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		: 3000.235
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:        855240 kB
Buffers:         40788 kB
Cached:        1025360 kB
SwapCached:      39192 kB
Active:         730964 kB
Inactive:       385200 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        855240 kB
SwapTotal:     4192956 kB
SwapFree:      4121028 kB
Dirty:             644 kB
Writeback:           0 kB
Mapped:          29712 kB
Slab:            70172 kB
Committed_AS:   584532 kB
PageTables:       1668 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 node22 on Sat Feb 17 22:38:58 UTC 2007