Trace number 1578225

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 2.1 (Sat-race'08 Edition)UNSAT 43.5114 43.526

General information on the benchmark

NameAPPLICATIONS/diagnosis/
UCG-10-5p0.cnf
MD5SUM9d45c35f4df88b155135c4914792c59e
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark27.3138
Satisfiable
(Un)Satisfiability was proved
Number of variables104481
Number of clauses500875
Sum of the clauses size1175028
Maximum clause length10
Minimum clause length1
Number of clauses of size 15498
Number of clauses of size 2398201
Number of clauses of size 369976
Number of clauses of size 43020
Number of clauses of size 512080
Number of clauses of size over 512100

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.69/0.73	c |  Number of variables:        104481                                         |
0.69/0.73	c |  Number of clauses:          494957                                         |
0.69/0.73	c |  Parse time:                   0.67 s                                       |
1.89/1.91	c |  Simplification time:          1.16 s                                       |
1.89/1.91	c |                                                                             |
1.89/1.91	c ============================[ Search Statistics ]==============================
1.89/1.91	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
1.89/1.91	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
1.89/1.91	c ===============================================================================
1.89/1.96	c |       100 |   49261   289591   789114 |   106183      100    131 | 28.451 % |
1.99/2.06	c |       250 |   49261   289591   789114 |   116801      250    106 | 28.451 % |
2.09/2.18	c |       475 |   49261   289591   789114 |   128481      475    132 | 28.451 % |
2.39/2.42	c |       812 |   47041   275317   752805 |   141330      809    131 | 30.576 % |
2.69/2.78	c |      1318 |   46582   272303   745042 |   155463     1305    113 | 31.015 % |
3.39/3.42	c |      2077 |   46575   272286   745006 |   171009     2061    115 | 31.022 % |
4.40/4.46	c |      3216 |   42838   247755   682451 |   188110     3174    122 | 34.599 % |
6.19/6.25	c |      4924 |   41613   239506   661568 |   206921     4870    128 | 35.771 % |
9.08/9.12	c |      7486 |   40465   234746   649242 |   227613     7395    156 | 36.870 % |
14.58/14.64	c |     11330 |   39499   231309   639877 |   250374    11187    182 | 37.794 % |
22.88/22.91	c |     17096 |   39181   223597   619271 |   275412    16754    198 | 38.099 % |
40.18/40.25	c |     25745 |   38924   221521   614356 |   302953    25137    190 | 38.345 % |
43.47/43.51	c ===============================================================================
43.47/43.51	c restarts              : 95
43.47/43.51	c conflicts             : 27346          (631 /sec)
43.47/43.51	c decisions             : 230924         (5326 /sec)
43.47/43.51	c propagations          : 85346148       (1968569 /sec)
43.47/43.51	c conflict literals     : 4972633        (29.03 % deleted)
43.47/43.51	c Memory used           : 61.46 MB
43.47/43.51	c CPU time              : 43.3544 s
43.47/43.51	c 
43.47/43.51	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1578225-1238896116/watcher-1578225-1238896116 -o /tmp/evaluation-result-1578225-1238896116/solver-1578225-1238896116 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1578225-1238896116.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): 1800 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: 1.02 1.02 1.00 2/64 17671
/proc/meminfo: memFree=1576736/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=8000 CPUtime=0
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 507 0 0 0 0 0 0 0 18 0 1 0 928203162 8192000 491 1992294400 4194304 5092341 548682068832 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 2000 492 63 219 0 1778 0

[startup+0.058966 s]
/proc/loadavg: 1.02 1.02 1.00 2/64 17671
/proc/meminfo: memFree=1576736/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=17856 CPUtime=0.05
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 2879 0 0 0 4 1 0 0 18 0 1 0 928203162 18284544 2841 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 4464 2842 63 219 0 4242 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 17856

[startup+0.101971 s]
/proc/loadavg: 1.02 1.02 1.00 2/64 17671
/proc/meminfo: memFree=1576736/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=20432 CPUtime=0.09
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 3795 0 0 0 7 2 0 0 18 0 1 0 928203162 20922368 3655 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 5108 3656 63 219 0 4886 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 20432

[startup+0.302 s]
/proc/loadavg: 1.02 1.02 1.00 2/64 17671
/proc/meminfo: memFree=1576736/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=27400 CPUtime=0.29
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 6326 0 0 0 26 3 0 0 19 0 1 0 928203162 28057600 5959 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 6850 5959 63 219 0 6628 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 27400

[startup+0.70106 s]
/proc/loadavg: 1.02 1.02 1.00 2/64 17671
/proc/meminfo: memFree=1576736/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=46876 CPUtime=0.69
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 10852 0 0 0 63 6 0 0 23 0 1 0 928203162 48001024 9978 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 11719 9979 63 219 0 11497 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 46876

[startup+1.50118 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1533720/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=54996 CPUtime=1.49
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 13504 0 0 0 142 7 0 0 25 0 1 0 928203162 56315904 12174 1992294400 4194304 5092341 548682068832 18446744073709551615 4223542 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 13749 12174 87 219 0 13527 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 54996

[startup+3.10141 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1539992/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=41848 CPUtime=3.09
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 14818 0 0 0 301 8 0 0 25 0 1 0 928203162 42852352 9387 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 10462 9387 102 219 0 10240 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 41848

[startup+6.30188 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1537880/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=44444 CPUtime=6.29
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 15256 0 0 0 620 9 0 0 25 0 1 0 928203162 45510656 9825 1992294400 4194304 5092341 548682068832 18446744073709551615 4266597 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 11111 9825 103 219 0 10889 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 44444

[startup+12.7018 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1533336/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=48336 CPUtime=12.69
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 16400 0 0 0 1259 10 0 0 25 0 1 0 928203162 49496064 10969 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 12084 10969 103 219 0 11862 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 48336

[startup+25.5017 s]
/proc/loadavg: 1.01 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1525848/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=62936 CPUtime=25.48
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 18188 0 0 0 2536 12 0 0 25 0 1 0 928203162 64446464 12757 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 15734 12757 103 219 0 15512 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 62936

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

[startup+31.9056 s]
/proc/loadavg: 1.01 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1523480/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=62936 CPUtime=31.88
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 18807 0 0 0 3175 13 0 0 25 0 1 0 928203162 64446464 13376 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 15734 13376 103 219 0 15512 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 62936

[startup+38.3016 s]
/proc/loadavg: 1.01 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1521944/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=62936 CPUtime=38.28
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 19238 0 0 0 3814 14 0 0 25 0 1 0 928203162 64446464 13807 1992294400 4194304 5092341 548682068832 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 15734 13807 103 219 0 15512 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 62936

[startup+41.5011 s]
/proc/loadavg: 1.01 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1521112/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=62936 CPUtime=41.48
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 19454 0 0 0 4134 14 0 0 25 0 1 0 928203162 64446464 14023 1992294400 4194304 5092341 548682068832 18446744073709551615 4240692 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 15734 14023 103 219 0 15512 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 62936

[startup+42.3012 s]
/proc/loadavg: 1.01 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1520792/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=62936 CPUtime=42.28
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 19491 0 0 0 4214 14 0 0 25 0 1 0 928203162 64446464 14060 1992294400 4194304 5092341 548682068832 18446744073709551615 4241067 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 15734 14060 103 219 0 15512 0
Current children cumulated CPU time (s) 42.28
Current children cumulated vsize (KiB) 62936

[startup+43.1013 s]
/proc/loadavg: 1.01 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1520600/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=62936 CPUtime=43.07
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 19530 0 0 0 4293 14 0 0 25 0 1 0 928203162 64446464 14099 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 15734 14099 103 219 0 15512 0
Current children cumulated CPU time (s) 43.07
Current children cumulated vsize (KiB) 62936

[startup+43.5014 s]
/proc/loadavg: 1.01 1.02 1.00 2/65 17672
/proc/meminfo: memFree=1520600/2055920 swapFree=4178268/4192956
[pid=17671] ppid=17669 vsize=62936 CPUtime=43.47
/proc/17671/stat : 17671 (minisat) R 17669 17671 17571 0 -1 4194304 19542 0 0 0 4333 14 0 0 25 0 1 0 928203162 64446464 14111 1992294400 4194304 5092341 548682068832 18446744073709551615 4241294 0 0 4096 3 0 0 0 17 1 0 0
/proc/17671/statm: 15734 14111 103 219 0 15512 0
Current children cumulated CPU time (s) 43.47
Current children cumulated vsize (KiB) 62936

Child status: 20
Real time (s): 43.526
CPU time (s): 43.5114
CPU user time (s): 43.3544
CPU system time (s): 0.156976
CPU usage (%): 99.9664
Max. virtual memory (cumulated for all children) (KiB): 62936

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 43.3544
system time used= 0.156976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19553
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= 2
involuntary context switches= 42

runsolver used 0.037994 second user time and 0.107983 second system time

The end

Launcher Data 

Begin job on node39 at 2009-04-05 03:48:37
IDJOB=1578225
IDBENCH=70974
IDSOLVER=546
FILE ID=node39/1578225-1238896116
PBS_JOBID= 9086081
Free space on /tmp= 66536 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/diagnosis/UCG-10-5p0.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1578225-1238896116/watcher-1578225-1238896116 -o /tmp/evaluation-result-1578225-1238896116/solver-1578225-1238896116 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1578225-1238896116.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 9d45c35f4df88b155135c4914792c59e
RANDOM SEED=975869536

node39.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.285
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		: 3000.285
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:       1577216 kB
Buffers:         61092 kB
Cached:         329024 kB
SwapCached:       8160 kB
Active:          82368 kB
Inactive:       317676 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1577216 kB
SwapTotal:     4192956 kB
SwapFree:      4178268 kB
Dirty:            9404 kB
Writeback:           0 kB
Mapped:          16688 kB
Slab:            64984 kB
Committed_AS:  2813724 kB
PageTables:       1188 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= 66536 MiB
End job on node39 at 2009-04-05 03:49:20