Trace number 421378

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
minisat SAT 2007SAT 0.732887 0.734948

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1665384822-14-SAT.cnf
MD5SUMbe7dc6f6bf5d0d6359adfd321a4b6af2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.036993
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  1295                                                 |
0.00/0.00	c |  Number of clauses:    4026                                                 |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.01	c ============================[ Search Statistics ]==============================
0.00/0.01	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.01	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.01	c ===============================================================================
0.00/0.01	c |         0 |    1086     3723    11154 |     1241        0    nan |  0.000 % |
0.00/0.01	c |       101 |    1086     3723    11154 |     1365      100     22 |  0.077 % |
0.00/0.02	c |       251 |    1085     3716    11131 |     1501      250     21 |  0.077 % |
0.03/0.04	c |       479 |    1085     3716    11131 |     1651      478     22 |  0.077 % |
0.03/0.06	c |       818 |    1085     3716    11131 |     1816      817     23 |  0.077 % |
0.03/0.09	c |      1325 |    1085     3716    11131 |     1998     1324     23 |  0.077 % |
0.09/0.15	c |      2085 |    1085     3716    11131 |     2198     2084     25 |  0.077 % |
0.19/0.24	c |      3225 |    1085     3716    11131 |     2418     2072     22 |  0.077 % |
0.29/0.38	c |      4933 |    1085     3716    11131 |     2660     1269     18 |  0.077 % |
0.59/0.60	c |      7499 |    1085     3716    11131 |     2926     2443     23 |  0.077 % |
0.69/0.73	c ===============================================================================
0.69/0.73	c restarts              : 10
0.69/0.73	c conflicts             : 8995           (12324 /sec)
0.69/0.73	c decisions             : 11907          (1.61 % random) (16313 /sec)
0.69/0.73	c propagations          : 1345080        (1842856 /sec)
0.69/0.73	c conflict literals     : 210005         (30.41 % deleted)
0.69/0.73	c Memory used           : 2.43 MB
0.69/0.73	c CPU time              : 0.729889 s
0.69/0.73	c 
0.69/0.73	s SATISFIABLE
0.69/0.73	v -1 -2 3 -4 -5 6 7 8 9 -10 -11 12 -13 -14 15 -16 -17 -18 19 20 21 -22 23 -24 -25 26 -27 28 -29 -30 31 32 -33 34 35 -36 37 -38 -39 -40 41 42 -43 44 -45 -46 -47 -48 49 50 51 -52 -53 -54 55 -56 57 -58 -59 60 61 -62 -63 -64 -65 66 67 -68 -69 70 -71 72 73 -74 -75 -76 77 -78 -79 -80 -81 -82 83 84 85 -86 -87 88 -89 -90 -91 -92 -93 94 -95 -96 -97 -98 99 -100 101 102 103 -104 -105 -106 107 108 -109 110 111 -112 -113 -114 -115 116 117 -118 119 120 121 122 123 124 -125 -126 -127 -128 129 130 131 132 133 134 135 -136 137 138 139 140 141 -142 143 -144 145 146 147 148 -149 150 -151 152 -153 -154 155 156 -157 -158 -159 160 -161 162 -163 164 165 166 167 -168 169 -170 171 172 173 -174 -175 176 -177 -178 179 -180 -181 -182 -183 -184 185 -186 -187 188 -189 -190 -191 192 -193 -194 -195 -196 -197 198 -199 -200 -201 202 203 -204 -205 -206 207 208 209 210 211 212 -213 214 -215 216 -217 218 219 220 221 222 223 -224 225 -226 227 -228 -229 -230 -231 -232 233 -234 -235 236 -237 -238 239 240 241 -242 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1286 1287 1288 1289 -1290 -1291 -1292 -1293 1294 -1295 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/node39/watcher-421378-1177503234 -o ROOT/results/node39/solver-421378-1177503234 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421378-1177503234/minisat_noassertions /tmp/evaluation/421378-1177503234/instance-421378-1177503234.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 0.91 0.97 0.94 3/77 4780
/proc/meminfo: memFree=1782280/2055920 swapFree=4159384/4192956
[pid=4780] ppid=4778 vsize=1992 CPUtime=0
/proc/4780/stat : 4780 (minisat_noasser) R 4778 4780 3356 0 -1 4194304 177 0 0 0 0 0 0 0 18 0 1 0 198235474 2039808 163 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/4780/statm: 498 163 50 130 0 365 0

[startup+0.0347499 s]
/proc/loadavg: 0.91 0.97 0.94 3/77 4780
/proc/meminfo: memFree=1782280/2055920 swapFree=4159384/4192956
[pid=4780] ppid=4778 vsize=2220 CPUtime=0.03
/proc/4780/stat : 4780 (minisat_noasser) R 4778 4780 3356 0 -1 4194304 236 0 0 0 3 0 0 0 18 0 1 0 198235474 2273280 222 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/4780/statm: 555 222 66 130 0 422 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2220

[startup+0.10176 s]
/proc/loadavg: 0.91 0.97 0.94 3/77 4780
/proc/meminfo: memFree=1782280/2055920 swapFree=4159384/4192956
[pid=4780] ppid=4778 vsize=2220 CPUtime=0.09
/proc/4780/stat : 4780 (minisat_noasser) R 4778 4780 3356 0 -1 4194304 238 0 0 0 9 0 0 0 18 0 1 0 198235474 2273280 224 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546814 0 0 4096 3 0 0 0 17 1 0 0
/proc/4780/statm: 555 224 66 130 0 422 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2220

[startup+0.301794 s]
/proc/loadavg: 0.91 0.97 0.94 3/77 4780
/proc/meminfo: memFree=1782280/2055920 swapFree=4159384/4192956
[pid=4780] ppid=4778 vsize=2352 CPUtime=0.29
/proc/4780/stat : 4780 (minisat_noasser) R 4778 4780 3356 0 -1 4194304 276 0 0 0 29 0 0 0 19 0 1 0 198235474 2408448 262 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/4780/statm: 588 262 66 130 0 455 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2352

[startup+0.701862 s]
/proc/loadavg: 0.91 0.97 0.94 3/77 4780
/proc/meminfo: memFree=1782280/2055920 swapFree=4159384/4192956
[pid=4780] ppid=4778 vsize=2484 CPUtime=0.69
/proc/4780/stat : 4780 (minisat_noasser) R 4778 4780 3356 0 -1 4194304 308 0 0 0 69 0 0 0 23 0 1 0 198235474 2543616 294 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546927 0 0 4096 3 0 0 0 17 1 0 0
/proc/4780/statm: 621 294 66 130 0 488 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2484

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

Child status: 10
Real time (s): 0.734948
CPU time (s): 0.732887
CPU user time (s): 0.730888
CPU system time (s): 0.001999
CPU usage (%): 99.7196
Max. virtual memory (cumulated for all children) (KiB): 2484

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.730888
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= 316
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= 8
involuntary context switches= 16

runsolver used 0.000999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Wed Apr 25 12:13:54 UTC 2007

IDJOB= 421378
IDBENCH= 20296
IDSOLVER= 188
FILE ID= node39/421378-1177503234

PBS_JOBID= 4685835

Free space on /tmp= 66488 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1665384822-14-SAT.cnf
COMMAND LINE= /tmp/evaluation/421378-1177503234/minisat_noassertions /tmp/evaluation/421378-1177503234/instance-421378-1177503234.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-421378-1177503234 -o ROOT/results/node39/solver-421378-1177503234 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421378-1177503234/minisat_noassertions /tmp/evaluation/421378-1177503234/instance-421378-1177503234.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  be7dc6f6bf5d0d6359adfd321a4b6af2

RANDOM SEED= 447639026

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		: 3000.256
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		: 3000.256
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:       1782624 kB
Buffers:         38080 kB
Cached:         146244 kB
SwapCached:      13964 kB
Active:         132668 kB
Inactive:        75664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1782624 kB
SwapTotal:     4192956 kB
SwapFree:      4159384 kB
Dirty:            1700 kB
Writeback:           0 kB
Mapped:          30952 kB
Slab:            50224 kB
Committed_AS:  1987296 kB
PageTables:       2012 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= 66488 MiB

End job on node39 on Wed Apr 25 12:13:55 UTC 2007