Trace number 421310

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 2007UNSAT 48.8646 48.9249

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1377128774-12-UNSAT.cnf
MD5SUMcc733e9a0d26b1e09913a40f9eba8e3c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark28.6866
Satisfiable
(Un)Satisfiability was proved
Number of variables3500
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
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:  3500                                                 |
0.00/0.00	c |  Number of clauses:    9344                                                 |
0.00/0.01	c |  Parsing time:         0.01         s                                       |
0.01/0.03	c ============================[ Search Statistics ]==============================
0.01/0.03	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.01/0.03	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.01/0.03	c ===============================================================================
0.01/0.03	c |         0 |    2481     7871    23627 |     2623        0    nan |  0.000 % |
0.01/0.04	c |       100 |    2481     7871    23627 |     2886      100     22 |  0.000 % |
0.01/0.06	c |       250 |    2481     7871    23627 |     3174      250     21 |  0.000 % |
0.01/0.08	c |       477 |    2480     7867    23618 |     3492      476     19 |  0.029 % |
0.09/0.12	c |       815 |    2480     7867    23618 |     3841      814     19 |  0.029 % |
0.09/0.17	c |      1321 |    2480     7867    23618 |     4225     1320     22 |  0.029 % |
0.19/0.26	c |      2082 |    2480     7867    23618 |     4647     2081     21 |  0.029 % |
0.39/0.42	c |      3221 |    2480     7867    23618 |     5112     3220     22 |  0.029 % |
0.59/0.67	c |      4930 |    2480     7867    23618 |     5624     4929     22 |  0.029 % |
1.00/1.07	c |      7495 |    2480     7867    23618 |     6186     4594     20 |  0.029 % |
1.59/1.66	c |     11339 |    2480     7867    23618 |     6805     5184     22 |  0.029 % |
2.59/2.65	c |     17105 |    2480     7867    23618 |     7485     3933     26 |  0.029 % |
4.19/4.22	c |     25754 |    2480     7867    23618 |     8234     4881     24 |  0.029 % |
6.50/6.55	c |     38730 |    2480     7867    23618 |     9057     5247     19 |  0.029 % |
10.09/10.14	c |     58192 |    2480     7867    23618 |     9963     6171     23 |  0.029 % |
15.69/15.78	c |     87386 |    2480     7867    23618 |    10959     9934     26 |  0.029 % |
24.79/24.83	c |    131175 |    2480     7867    23618 |    12055     9256     22 |  0.029 % |
38.46/38.52	c |    196859 |    2474     7828    23488 |    13261     7739     24 |  0.200 % |
48.83/48.92	c ===============================================================================
48.83/48.92	c restarts              : 18
48.83/48.92	c conflicts             : 243921         (4994 /sec)
48.83/48.92	c decisions             : 310725         (1.72 % random) (6361 /sec)
48.83/48.92	c propagations          : 70696802       (1447324 /sec)
48.83/48.92	c conflict literals     : 6027881        (40.96 % deleted)
48.83/48.92	c Memory used           : 5.34 MB
48.83/48.92	c CPU time              : 48.8466 s
48.83/48.92	c 
48.83/48.92	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node26/watcher-421310-1177502429 -o ROOT/results/node26/solver-421310-1177502429 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421310-1177502429/minisat_noassertions /tmp/evaluation/421310-1177502429/instance-421310-1177502429.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: 0.93 0.98 0.91 3/77 30187
/proc/meminfo: memFree=1558600/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=2176 CPUtime=0
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 244 0 0 0 0 0 0 0 18 0 1 0 198159685 2228224 230 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 544 231 50 130 0 411 0

[startup+0.0140769 s]
/proc/loadavg: 0.93 0.98 0.91 3/77 30187
/proc/meminfo: memFree=1558600/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=2704 CPUtime=0.01
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 363 0 0 0 1 0 0 0 18 0 1 0 198159685 2768896 349 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134529425 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 676 349 62 130 0 543 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2704

[startup+0.101085 s]
/proc/loadavg: 0.93 0.98 0.91 3/77 30187
/proc/meminfo: memFree=1558600/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=2944 CPUtime=0.09
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 453 0 0 0 9 0 0 0 18 0 1 0 198159685 3014656 439 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 736 439 66 130 0 603 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2944

[startup+0.301104 s]
/proc/loadavg: 0.93 0.98 0.91 3/77 30187
/proc/meminfo: memFree=1558600/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=2944 CPUtime=0.29
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 453 0 0 0 29 0 0 0 19 0 1 0 198159685 3014656 439 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546942 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 736 439 66 130 0 603 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2944

[startup+0.701141 s]
/proc/loadavg: 0.93 0.98 0.91 3/77 30187
/proc/meminfo: memFree=1558600/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=3208 CPUtime=0.69
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 512 0 0 0 69 0 0 0 22 0 1 0 198159685 3284992 498 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547072 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 802 498 66 130 0 669 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3208

[startup+1.50121 s]
/proc/loadavg: 0.93 0.98 0.91 2/78 30188
/proc/meminfo: memFree=1556736/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=3340 CPUtime=1.49
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 560 0 0 0 149 0 0 0 25 0 1 0 198159685 3420160 546 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552448 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 835 546 66 130 0 702 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3340

[startup+3.10136 s]
/proc/loadavg: 0.94 0.98 0.91 2/78 30188
/proc/meminfo: memFree=1556352/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=3736 CPUtime=3.09
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 638 0 0 0 309 0 0 0 25 0 1 0 198159685 3825664 624 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547273 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 934 624 66 130 0 801 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3736

[startup+6.30166 s]
/proc/loadavg: 0.94 0.98 0.91 2/78 30188
/proc/meminfo: memFree=1555968/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=4000 CPUtime=6.29
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 691 0 0 0 629 0 0 0 25 0 1 0 198159685 4096000 677 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547004 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 1000 677 66 130 0 867 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4000

[startup+12.7013 s]
/proc/loadavg: 0.95 0.98 0.91 2/78 30188
/proc/meminfo: memFree=1555592/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=4268 CPUtime=12.69
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 774 0 0 0 1269 0 0 0 25 0 1 0 198159685 4370432 760 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 1067 760 66 130 0 934 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4268

[startup+25.5014 s]
/proc/loadavg: 0.95 0.98 0.91 2/78 30188
/proc/meminfo: memFree=1554952/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=4932 CPUtime=25.49
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 951 0 0 0 2549 0 0 0 25 0 1 0 198159685 5050368 937 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546762 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 1233 937 66 130 0 1100 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 4932

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

[startup+38.3016 s]
/proc/loadavg: 0.96 0.98 0.91 2/84 30254
/proc/meminfo: memFree=1553360/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=5064 CPUtime=38.25
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 985 0 0 0 3825 0 0 0 25 0 1 0 198159685 5185536 971 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547011 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 1266 971 66 130 0 1133 0
Current children cumulated CPU time (s) 38.25
Current children cumulated vsize (KiB) 5064

[startup+44.7012 s]
/proc/loadavg: 0.97 0.98 0.91 2/84 30262
/proc/meminfo: memFree=1553104/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=5468 CPUtime=44.65
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 1056 0 0 0 4464 1 0 0 25 0 1 0 198159685 5599232 1042 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547326 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 1367 1042 66 130 0 1234 0
Current children cumulated CPU time (s) 44.65
Current children cumulated vsize (KiB) 5468

[startup+46.3014 s]
/proc/loadavg: 0.97 0.98 0.91 2/84 30270
/proc/meminfo: memFree=1552976/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=5468 CPUtime=46.24
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 1060 0 0 0 4623 1 0 0 25 0 1 0 198159685 5599232 1046 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 1367 1046 66 130 0 1234 0
Current children cumulated CPU time (s) 46.24
Current children cumulated vsize (KiB) 5468

[startup+47.9015 s]
/proc/loadavg: 0.97 0.98 0.91 2/84 30270
/proc/meminfo: memFree=1552976/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=5468 CPUtime=47.83
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 1060 0 0 0 4782 1 0 0 25 0 1 0 198159685 5599232 1046 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552786 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 1367 1046 66 130 0 1234 0
Current children cumulated CPU time (s) 47.83
Current children cumulated vsize (KiB) 5468

[startup+48.7016 s]
/proc/loadavg: 0.97 0.98 0.91 2/84 30296
/proc/meminfo: memFree=1553032/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=5468 CPUtime=48.63
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 1060 0 0 0 4862 1 0 0 25 0 1 0 198159685 5599232 1046 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547171 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 1367 1046 66 130 0 1234 0
Current children cumulated CPU time (s) 48.63
Current children cumulated vsize (KiB) 5468

[startup+48.9016 s]
/proc/loadavg: 0.97 0.98 0.91 2/84 30296
/proc/meminfo: memFree=1553032/2055920 swapFree=4170240/4192956
[pid=30187] ppid=30185 vsize=5468 CPUtime=48.83
/proc/30187/stat : 30187 (minisat_noasser) R 30185 30187 28788 0 -1 4194304 1060 0 0 0 4882 1 0 0 25 0 1 0 198159685 5599232 1046 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547273 0 0 4096 3 0 0 0 17 1 0 0
/proc/30187/statm: 1367 1046 66 130 0 1234 0
Current children cumulated CPU time (s) 48.83
Current children cumulated vsize (KiB) 5468

Child status: 20
Real time (s): 48.9249
CPU time (s): 48.8646
CPU user time (s): 48.8466
CPU system time (s): 0.017997
CPU usage (%): 99.8767
Max. virtual memory (cumulated for all children) (KiB): 5468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 48.8466
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1066
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= 7
involuntary context switches= 245

runsolver used 0.035994 second user time and 0.12698 second system time

The end

Launcher Data (download as text)

Begin job on node26 on Wed Apr 25 12:00:29 UTC 2007

IDJOB= 421310
IDBENCH= 20220
IDSOLVER= 188
FILE ID= node26/421310-1177502429

PBS_JOBID= 4685871

Free space on /tmp= 66435 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1377128774-12-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/421310-1177502429/minisat_noassertions /tmp/evaluation/421310-1177502429/instance-421310-1177502429.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-421310-1177502429 -o ROOT/results/node26/solver-421310-1177502429 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421310-1177502429/minisat_noassertions /tmp/evaluation/421310-1177502429/instance-421310-1177502429.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  cc733e9a0d26b1e09913a40f9eba8e3c

RANDOM SEED= 630738075

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node26.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		: 3000.213
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		: 3000.213
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:       1559008 kB
Buffers:         49432 kB
Cached:         316496 kB
SwapCached:       3516 kB
Active:         283900 kB
Inactive:       143004 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1559008 kB
SwapTotal:     4192956 kB
SwapFree:      4170240 kB
Dirty:            1768 kB
Writeback:           0 kB
Mapped:          68152 kB
Slab:            55504 kB
Committed_AS:  1247312 kB
PageTables:       1824 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= 66435 MiB

End job on node26 on Wed Apr 25 12:01:18 UTC 2007