Trace number 370141

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 16.5045 16.5253

General information on the benchmark

Namecrafted/Medium/contest05/jarvisalo/
mod2-rand3bip-sat-210-2.sat05-2159.reshuffled-07.cnf
MD5SUMf34a97e9100b15a8025a13df7cb62499
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Satisfiable
(Un)Satisfiability was proved
Number of variables210
Number of clauses840
Sum of the clauses size2520
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3840
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

16.49/16.52	c MXC attempting /tmp/evaluation/370141-1177552087/instance-370141-1177552087.cnf
16.49/16.52	c 0 assignments made, starting to guess now
16.49/16.52	c ===================================[MXC]=====================================
16.49/16.52	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
16.49/16.52	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
16.49/16.52	c =============================================================================
16.49/16.52	c |         0 |     840     2520 |    1000       0       0     nan |  0.000 % |
16.49/16.52	c |       100 |     840     2520 |    1100     100    2331    23.3 |  0.000 % |
16.49/16.52	c |       250 |     840     2520 |    1210     249    5590    22.4 |  0.000 % |
16.49/16.52	c |       475 |     840     2520 |    1331     474   10577    22.3 |  0.000 % |
16.49/16.52	c |       812 |     840     2520 |    1464     811   17222    21.2 |  0.000 % |
16.49/16.52	c |      1318 |     840     2520 |    1610    1314   29405    22.4 |  0.000 % |
16.49/16.52	c |      2077 |     840     2520 |    1771    1268   27412    21.6 |  0.000 % |
16.49/16.52	c |      3217 |     840     2520 |    1948    1521   30766    20.2 |  0.000 % |
16.49/16.52	c |      4926 |     840     2520 |    2143    1281   21709    16.9 |  0.000 % |
16.49/16.52	c |      7489 |     840     2520 |    2357    1700   28498    16.8 |  0.000 % |
16.49/16.52	c |     11334 |     840     2520 |    2593    2006   31294    15.6 |  0.000 % |
16.49/16.52	c |     17100 |     840     2520 |    2853    2584   42900    16.6 |  0.000 % |
16.49/16.52	c |     25750 |     840     2520 |    3138    2677   45303    16.9 |  0.000 % |
16.49/16.52	c |     38724 |     840     2520 |    3452    3104   46096    14.9 |  0.000 % |
16.49/16.52	c |     58186 |     840     2520 |    3797    1863   27435    14.7 |  0.000 % |
16.49/16.52	c |     87380 |     840     2520 |    4177    2588   38191    14.8 |  0.000 % |
16.49/16.52	c |    131169 |     840     2520 |    4594    2547   37191    14.6 |  0.000 % |
16.49/16.52	c |    196853 |     840     2520 |    5054    3944   56805    14.4 |  0.000 % |
16.49/16.52	c 16.500s elapsed
16.49/16.52	c restarts: 17
16.49/16.52	c decisions: 257761
16.49/16.52	c propagations: 14799087
16.49/16.52	c conflicts: 241869
16.49/16.52	s SATISFIABLE
16.49/16.52	v -147 -48 -118 56 -102 -44 -62 -159 33 -182 -152 197 160 37 -84 81 -131 137 -204 -153 116 -122 71 -97 161 80 175 34 -86 78 149 -130 128 25 77 195 -141 -170 -18 24 -191 103 21 187 64 156 164 -200 201 99 -117 -158 -207 120 66 193 179 167 61 -183 -154 98 111 46 60 3 189 31 47 145 -106 190 -109 -50 42 63 -142 23 -119 144 -22 -83 -96 -151 -54 -65 39 -9 11 82 93 -28 123 139 -20 -104 146 199 178 41 196 -92 -87 173 -209 -16 38 138 -132 -205 91 68 26 76 -184 -67 -206 -55 112 -126 174 8 -15 129 -79 -165 -35 115 -108 -95 192 113 -202 177 210 13 73 -133 49 -32 -194 -125 10 -203 124 1 85 -100 17 70 -75 -90 -58 53 127 89 19 208 -29 -121 -185 162 -110 69 -59 135 -148 57 45 72 166 181 176 -163 43 -52 40 -198 27 74 -136 14 -105 4 155 -140 30 172 51 -94 -171 -180 -101 143 -134 -168 -114 188 -186 12 -2 5 150 7 -36 157 88 -169 107 6 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node4/watcher-370141-1177552087 -o ROOT/results/node4/solver-370141-1177552087 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370141-1177552087/mxc /tmp/evaluation/370141-1177552087/instance-370141-1177552087.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.92 0.96 0.91 3/77 28346
/proc/meminfo: memFree=1699736/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=932 CPUtime=0
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 105 0 0 0 0 0 0 0 18 0 1 0 231246412 954368 90 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134643709 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 233 90 59 122 0 107 0

[startup+0.048916 s]
/proc/loadavg: 0.92 0.96 0.91 3/77 28346
/proc/meminfo: memFree=1699736/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1064 CPUtime=0.04
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 144 0 0 0 4 0 0 0 18 0 1 0 231246412 1089536 129 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519232 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 266 129 59 122 0 140 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1064

[startup+0.10192 s]
/proc/loadavg: 0.92 0.96 0.91 3/77 28346
/proc/meminfo: memFree=1699736/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1204 CPUtime=0.1
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 171 0 0 0 10 0 0 0 18 0 1 0 231246412 1232896 154 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531601 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 301 154 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.301939 s]
/proc/loadavg: 0.92 0.96 0.91 3/77 28346
/proc/meminfo: memFree=1699736/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1204 CPUtime=0.29
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 191 0 0 0 29 0 0 0 19 0 1 0 231246412 1232896 174 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519261 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 301 174 67 122 0 175 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1204

[startup+0.701978 s]
/proc/loadavg: 0.92 0.96 0.91 3/77 28346
/proc/meminfo: memFree=1699736/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1336 CPUtime=0.69
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 212 0 0 0 69 0 0 0 23 0 1 0 231246412 1368064 195 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 334 195 67 122 0 208 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1336

[startup+1.50105 s]
/proc/loadavg: 0.92 0.96 0.91 2/78 28347
/proc/meminfo: memFree=1699088/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1456 CPUtime=1.49
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 241 0 0 0 149 0 0 0 25 0 1 0 231246412 1490944 224 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530261 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 364 224 67 122 0 238 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1456

[startup+3.10221 s]
/proc/loadavg: 0.93 0.96 0.91 2/78 28347
/proc/meminfo: memFree=1698896/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1576 CPUtime=3.09
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 276 0 0 0 309 0 0 0 25 0 1 0 231246412 1613824 259 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134529785 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 394 259 67 122 0 268 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1576

[startup+6.30151 s]
/proc/loadavg: 0.93 0.96 0.91 2/78 28347
/proc/meminfo: memFree=1698704/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1692 CPUtime=6.29
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 308 0 0 0 629 0 0 0 25 0 1 0 231246412 1732608 291 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530067 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 423 291 67 122 0 297 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1692

[startup+12.7011 s]
/proc/loadavg: 0.94 0.96 0.91 2/78 28347
/proc/meminfo: memFree=1698448/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1924 CPUtime=12.69
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 354 0 0 0 1269 0 0 0 25 0 1 0 231246412 1970176 337 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530169 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 481 337 67 122 0 355 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1924

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

[startup+14.3053 s]
/proc/loadavg: 0.94 0.96 0.91 2/78 28347
/proc/meminfo: memFree=1698448/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1924 CPUtime=14.29
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 363 0 0 0 1429 0 0 0 25 0 1 0 231246412 1970176 346 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519890 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 481 346 67 122 0 355 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 1924

[startup+15.9014 s]
/proc/loadavg: 0.94 0.96 0.91 2/78 28347
/proc/meminfo: memFree=1698384/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1924 CPUtime=15.89
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 370 0 0 0 1589 0 0 0 25 0 1 0 231246412 1970176 353 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530426 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 481 353 67 122 0 355 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 1924

[startup+16.3015 s]
/proc/loadavg: 0.94 0.96 0.91 2/78 28347
/proc/meminfo: memFree=1698384/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1924 CPUtime=16.29
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 370 0 0 0 1629 0 0 0 25 0 1 0 231246412 1970176 353 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531538 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 481 353 67 122 0 355 0
Current children cumulated CPU time (s) 16.29
Current children cumulated vsize (KiB) 1924

[startup+16.5055 s]
/proc/loadavg: 0.94 0.96 0.91 2/78 28347
/proc/meminfo: memFree=1698384/2055920 swapFree=4141080/4192956
[pid=28346] ppid=28344 vsize=1924 CPUtime=16.49
/proc/28346/stat : 28346 (mxc) R 28344 28346 27092 0 -1 4194304 370 0 0 0 1649 0 0 0 25 0 1 0 231246412 1970176 353 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/28346/statm: 481 353 67 122 0 355 0
Current children cumulated CPU time (s) 16.49
Current children cumulated vsize (KiB) 1924

Child status: 10
Real time (s): 16.5253
CPU time (s): 16.5045
CPU user time (s): 16.5005
CPU system time (s): 0.003999
CPU usage (%): 99.874
Max. virtual memory (cumulated for all children) (KiB): 1924

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.5005
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= 372
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= 359

runsolver used 0.022996 second user time and 0.033994 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Thu Apr 26 01:48:07 UTC 2007

IDJOB= 370141
IDBENCH= 24606
IDSOLVER= 181
FILE ID= node4/370141-1177552087

PBS_JOBID= 4696479

Free space on /tmp= 66478 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/jarvisalo/mod2-rand3bip-sat-210-2.sat05-2159.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/370141-1177552087/mxc /tmp/evaluation/370141-1177552087/instance-370141-1177552087.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-370141-1177552087 -o ROOT/results/node4/solver-370141-1177552087 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370141-1177552087/mxc /tmp/evaluation/370141-1177552087/instance-370141-1177552087.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  f34a97e9100b15a8025a13df7cb62499

RANDOM SEED= 6524525

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.218
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	: 5931.00
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		: 3000.218
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:       1700208 kB
Buffers:         40452 kB
Cached:         230756 kB
SwapCached:      15616 kB
Active:         210044 kB
Inactive:       103568 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1700208 kB
SwapTotal:     4192956 kB
SwapFree:      4141080 kB
Dirty:             636 kB
Writeback:           0 kB
Mapped:          48720 kB
Slab:            27564 kB
Committed_AS:  6331504 kB
PageTables:       1876 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= 66478 MiB

End job on node4 on Thu Apr 26 01:48:23 UTC 2007