Trace number 291594

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 6.15006 6.16411

General information on the benchmark

Namerandom/OnTreshold/5SAT/v80/
unif-k5-r21.3-v80-c1704-S1456895752-14.SAT.shuffled.cnf
MD5SUMfa2304b8263a4aa6972ebd18df695b72
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses1704
Sum of the clauses size8520
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 51704
Number of clauses of size over 50

Solver Data (download as text)

6.14/6.16	c MXC attempting /tmp/evaluation/291594-1171744234/instance-291594-1171744234.cnf
6.14/6.16	c 0 assignments made, starting to guess now
6.14/6.16	c ===================================[MXC]=====================================
6.14/6.16	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
6.14/6.16	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
6.14/6.16	c =============================================================================
6.14/6.16	c |         0 |    1704     8520 |    1000       0       0     nan |  0.000 % |
6.14/6.16	c |       101 |    1704     8520 |    1100     101    1877    18.6 |  0.000 % |
6.14/6.16	c |       255 |    1704     8520 |    1210     255    4557    17.9 |  0.000 % |
6.14/6.16	c |       480 |    1704     8520 |    1331     480    8373    17.4 |  0.000 % |
6.14/6.16	c |       818 |    1704     8520 |    1464     818   14015    17.1 |  0.000 % |
6.14/6.16	c |      1324 |    1704     8520 |    1610    1324   22541    17.0 |  0.000 % |
6.14/6.16	c |      2083 |    1704     8520 |    1771    1277   21490    16.8 |  0.000 % |
6.14/6.16	c |      3222 |    1704     8520 |    1948    1530   25452    16.6 |  0.000 % |
6.14/6.16	c |      4930 |    1704     8520 |    2143    1289   20480    15.9 |  0.000 % |
6.14/6.16	c |      7492 |    1704     8520 |    2357    1707   28705    16.8 |  0.000 % |
6.14/6.16	c |     11337 |    1704     8520 |    2593    2015   35149    17.4 |  0.000 % |
6.14/6.16	c |     17105 |    1704     8520 |    2853    2594   43420    16.7 |  0.000 % |
6.14/6.16	c |     25754 |    1704     8520 |    3138    2684   45749    17.0 |  0.000 % |
6.14/6.16	c |     38728 |    1704     8520 |    3452    3104   51571    16.6 |  0.000 % |
6.14/6.16	c |     58189 |    1704     8520 |    3797    1857   29404    15.8 |  0.000 % |
6.14/6.16	c |     87381 |    1704     8520 |    4177    2584   39777    15.4 |  0.000 % |
6.14/6.16	c |    131171 |    1704     8520 |    4594    2529   39003    15.4 |  0.000 % |
6.14/6.16	c 6.140s elapsed
6.14/6.16	c restarts: 16
6.14/6.16	c decisions: 166989
6.14/6.16	c propagations: 2213276
6.14/6.16	c conflicts: 150551
6.14/6.16	s SATISFIABLE
6.14/6.16	v -6 -47 -27 -58 -10 -7 -5 -11 66 38 42 -55 -61 4 32 52 36 -70 72 -44 -25 16 75 -28 37 79 -1 62 -15 50 30 -40 -68 -26 48 -20 19 65 73 8 -43 31 80 23 45 -24 57 -64 3 -2 -14 -29 -49 51 33 71 -53 54 -9 -35 41 -74 13 12 60 67 -46 69 -34 63 18 -76 -39 -78 21 77 56 -17 22 59 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/node9/watcher-291594-1171744234 -o ROOT/results/node9/solver-291594-1171744234 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/291594-1171744234/mxc /tmp/evaluation/291594-1171744234/instance-291594-1171744234.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: 1.03 0.88 0.75 3/77 5909
/proc/meminfo: memFree=1695696/2055920 swapFree=4192812/4192956
[pid=5909] ppid=5907 vsize=932 CPUtime=0
/proc/5909/stat : 5909 (mxc) R 5907 5909 5732 0 -1 4194304 118 0 0 0 0 0 0 0 18 0 1 0 194378064 954368 102 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519619 0 0 4096 0 0 0 0 17 1 0 0
/proc/5909/statm: 233 102 59 122 0 107 0

[startup+0.107219 s]
/proc/loadavg: 1.03 0.88 0.75 3/77 5909
/proc/meminfo: memFree=1695696/2055920 swapFree=4192812/4192956
[pid=5909] ppid=5907 vsize=1204 CPUtime=0.1
/proc/5909/stat : 5909 (mxc) R 5907 5909 5732 0 -1 4194304 179 0 0 0 10 0 0 0 18 0 1 0 194378064 1232896 161 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/5909/statm: 301 161 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.515297 s]
/proc/loadavg: 1.03 0.88 0.75 3/77 5909
/proc/meminfo: memFree=1695696/2055920 swapFree=4192812/4192956
[pid=5909] ppid=5907 vsize=1336 CPUtime=0.51
/proc/5909/stat : 5909 (mxc) R 5907 5909 5732 0 -1 4194304 218 0 0 0 51 0 0 0 22 0 1 0 194378064 1368064 200 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/5909/statm: 334 200 67 122 0 208 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1336

[startup+1.33546 s]
/proc/loadavg: 1.03 0.88 0.75 2/78 5910
/proc/meminfo: memFree=1694984/2055920 swapFree=4192812/4192956
[pid=5909] ppid=5907 vsize=1460 CPUtime=1.33
/proc/5909/stat : 5909 (mxc) R 5907 5909 5732 0 -1 4194304 248 0 0 0 133 0 0 0 25 0 1 0 194378064 1495040 230 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134529871 0 0 4096 0 0 0 0 17 1 0 0
/proc/5909/statm: 365 230 67 122 0 239 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1460

[startup+2.97477 s]
/proc/loadavg: 1.03 0.88 0.75 2/78 5910
/proc/meminfo: memFree=1694728/2055920 swapFree=4192812/4192956
[pid=5909] ppid=5907 vsize=1584 CPUtime=2.97
/proc/5909/stat : 5909 (mxc) R 5907 5909 5732 0 -1 4194304 288 0 0 0 297 0 0 0 25 0 1 0 194378064 1622016 270 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/5909/statm: 396 270 67 122 0 270 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 1584

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

[startup+3.28083 s]
/proc/loadavg: 1.03 0.88 0.75 2/78 5910
/proc/meminfo: memFree=1694728/2055920 swapFree=4192812/4192956
[pid=5909] ppid=5907 vsize=1584 CPUtime=3.27
/proc/5909/stat : 5909 (mxc) R 5907 5909 5732 0 -1 4194304 290 0 0 0 327 0 0 0 25 0 1 0 194378064 1622016 272 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519291 0 0 4096 0 0 0 0 17 1 0 0
/proc/5909/statm: 396 272 67 122 0 270 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 1584

[startup+4.92115 s]
/proc/loadavg: 1.03 0.88 0.75 2/78 5910
/proc/meminfo: memFree=1694600/2055920 swapFree=4192812/4192956
[pid=5909] ppid=5907 vsize=1744 CPUtime=4.91
/proc/5909/stat : 5909 (mxc) R 5907 5909 5732 0 -1 4194304 315 0 0 0 491 0 0 0 25 0 1 0 194378064 1785856 297 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519287 0 0 4096 0 0 0 0 17 1 0 0
/proc/5909/statm: 436 297 67 122 0 310 0
Current children cumulated CPU time (s) 4.91
Current children cumulated vsize (KiB) 1744

[startup+5.74131 s]
/proc/loadavg: 1.03 0.88 0.75 2/78 5910
/proc/meminfo: memFree=1694536/2055920 swapFree=4192812/4192956
[pid=5909] ppid=5907 vsize=1864 CPUtime=5.73
/proc/5909/stat : 5909 (mxc) R 5907 5909 5732 0 -1 4194304 329 0 0 0 573 0 0 0 25 0 1 0 194378064 1908736 311 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519280 0 0 4096 0 0 0 0 17 1 0 0
/proc/5909/statm: 466 311 67 122 0 340 0
Current children cumulated CPU time (s) 5.73
Current children cumulated vsize (KiB) 1864

[startup+6.14938 s]
/proc/loadavg: 1.03 0.88 0.75 2/78 5910
/proc/meminfo: memFree=1694536/2055920 swapFree=4192812/4192956
[pid=5909] ppid=5907 vsize=1864 CPUtime=6.14
/proc/5909/stat : 5909 (mxc) R 5907 5909 5732 0 -1 4194304 331 0 0 0 614 0 0 0 25 0 1 0 194378064 1908736 313 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519942 0 0 4096 0 0 0 0 17 1 0 0
/proc/5909/statm: 466 313 67 122 0 340 0
Current children cumulated CPU time (s) 6.14
Current children cumulated vsize (KiB) 1864

Child status: 10
Real time (s): 6.16411
CPU time (s): 6.15006
CPU user time (s): 6.14806
CPU system time (s): 0.001999
CPU usage (%): 99.7722
Max. virtual memory (cumulated for all children) (KiB): 1864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.14806
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 333
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= 129

runsolver used 0.006998 second user time and 0.018997 second system time

The end

Launcher Data (download as text)

Begin job on node9 on Sat Feb 17 20:30:34 UTC 2007

IDJOB= 291594
IDBENCH= 19819
IDSOLVER= 107
FILE ID= node9/291594-1171744234

PBS_JOBID= 3839260

Free space on /tmp= 66546 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v80/unif-k5-r21.3-v80-c1704-S1456895752-14.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/291594-1171744234/mxc /tmp/evaluation/291594-1171744234/instance-291594-1171744234.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-291594-1171744234 -o ROOT/results/node9/solver-291594-1171744234 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/291594-1171744234/mxc /tmp/evaluation/291594-1171744234/instance-291594-1171744234.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  fa2304b8263a4aa6972ebd18df695b72

RANDOM SEED= 503104064

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node9.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		: 3000.263
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		: 3000.263
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:       1696104 kB
Buffers:         45848 kB
Cached:         192084 kB
SwapCached:          0 kB
Active:         230992 kB
Inactive:        61136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1696104 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             784 kB
Writeback:           0 kB
Mapped:          73124 kB
Slab:            53252 kB
Committed_AS:   982188 kB
PageTables:       1688 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= 66546 MiB

End job on node9 on Sat Feb 17 20:30:41 UTC 2007