Trace number 307997

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
minimarch 2007-02-08UNSAT 31.0473 31.0577

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	This is MiniMarch, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  3500                                                 |
0.00/0.00	|  Number of clauses:    9344                                                 |
0.00/0.02	|  Parsing time:         0.02         s                                       |
0.00/0.05	============================[ Search Statistics ]==============================
0.00/0.05	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.05	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.05	===============================================================================
0.00/0.05	|         0 |    2481     7871    23626 |     2623        0    nan |  0.000 % |
0.00/0.07	|       100 |    2481     7871    23626 |     2886       99     16 |  0.029 % |
0.00/0.08	|       251 |    2480     7867    23617 |     3174      250     15 |  0.029 % |
0.10/0.11	|       476 |    2480     7867    23617 |     3492      475     16 |  0.029 % |
0.10/0.15	|       814 |    2480     7867    23617 |     3841      813     17 |  0.029 % |
0.20/0.21	|      1320 |    2480     7867    23617 |     4225     1319     18 |  0.029 % |
0.30/0.31	|      2079 |    2480     7867    23617 |     4647     2078     17 |  0.029 % |
0.40/0.48	|      3218 |    2480     7867    23617 |     5112     3217     19 |  0.029 % |
0.71/0.74	|      4926 |    2480     7867    23617 |     5624     4925     19 |  0.029 % |
1.12/1.17	|      7488 |    2477     7850    23565 |     6186     4300     18 |  0.114 % |
1.73/1.83	|     11333 |    2477     7850    23565 |     6805     4965     19 |  0.114 % |
2.76/2.82	|     17099 |    2474     7834    23515 |     7485     5933     19 |  0.200 % |
4.39/4.41	|     25748 |    2468     7807    23437 |     8234     6635     22 |  0.371 % |
6.75/6.81	|     38722 |    2468     7807    23437 |     9057     7002     18 |  0.371 % |
10.75/10.76	|     58183 |    2468     7807    23437 |     9963     7899     24 |  0.372 % |
16.68/16.76	|     87376 |    2467     7799    23410 |    10959     7839     21 |  0.400 % |
25.80/25.91	|    131166 |    2460     7776    23354 |    12055     6026     21 |  0.600 % |
31.02/31.05	===============================================================================
31.02/31.05	lookaheads            : 167071
31.02/31.05	variable balance      : 0.00
31.02/31.05	restarts              : 17
31.02/31.05	conflicts             : 154535         (4979 /sec)
31.02/31.05	decisions             : 167071         (1.72 % random) (5383 /sec)
31.02/31.05	decision = positive   : 83231
31.02/31.05	decision = negative   : 83840
31.02/31.05	propagations          : 50567819       (1629208 /sec)
31.02/31.05	conflict literals     : 3205024        (41.52 % deleted)
31.02/31.05	Memory used           : 4.46 MB
31.02/31.05	CPU time              : 31.0383 s
31.02/31.05	
31.02/31.05	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node19/watcher-307997-1172511071 -o ROOT/results/node19/solver-307997-1172511071 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/307997-1172511071/minimarch /tmp/evaluation/307997-1172511071/instance-307997-1172511071.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: 1.00 1.00 1.16 3/77 22808
/proc/meminfo: memFree=1291624/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=2296 CPUtime=0
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 256 0 0 0 0 0 0 0 18 0 1 0 271061128 2351104 240 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134691888 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 574 240 51 132 0 439 0

[startup+0.107864 s]
/proc/loadavg: 1.00 1.00 1.16 3/77 22808
/proc/meminfo: memFree=1291624/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=3104 CPUtime=0.1
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 484 0 0 0 10 0 0 0 18 0 1 0 271061128 3178496 468 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551496 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 776 468 66 132 0 641 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3104

[startup+0.515909 s]
/proc/loadavg: 1.00 1.00 1.16 3/77 22808
/proc/meminfo: memFree=1291624/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=3104 CPUtime=0.51
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 484 0 0 0 51 0 0 0 21 0 1 0 271061128 3178496 468 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 776 468 66 132 0 641 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3104

[startup+1.336 s]
/proc/loadavg: 1.00 1.00 1.16 3/78 22809
/proc/meminfo: memFree=1289824/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=3236 CPUtime=1.33
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 520 0 0 0 133 0 0 0 25 0 1 0 271061128 3313664 504 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557553 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 809 504 66 132 0 674 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3236

[startup+2.97218 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1289504/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=3500 CPUtime=2.96
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 564 0 0 0 296 0 0 0 25 0 1 0 271061128 3584000 548 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551688 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 875 548 66 132 0 740 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 3500

[startup+6.24853 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1289128/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=3764 CPUtime=6.24
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 646 0 0 0 624 0 0 0 25 0 1 0 271061128 3854336 630 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 941 630 66 132 0 806 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 3764

[startup+12.7062 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1288680/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=4160 CPUtime=12.69
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 754 0 0 0 1269 0 0 0 25 0 1 0 271061128 4259840 738 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551236 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 1040 738 66 132 0 905 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4160

[startup+25.5076 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1288488/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=4428 CPUtime=25.49
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 802 0 0 0 2549 0 0 0 25 0 1 0 271061128 4534272 786 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551262 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 1107 786 66 132 0 972 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 4428

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

[startup+26.2287 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1288360/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=4560 CPUtime=26.21
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 831 0 0 0 2621 0 0 0 25 0 1 0 271061128 4669440 815 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 1140 815 66 132 0 1005 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 4560

[startup+29.5051 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1288296/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=4560 CPUtime=29.48
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 844 0 0 0 2948 0 0 0 25 0 1 0 271061128 4669440 828 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134558015 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 1140 828 66 132 0 1005 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 4560

[startup+30.3211 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1288296/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=4560 CPUtime=30.3
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 844 0 0 0 3030 0 0 0 25 0 1 0 271061128 4669440 828 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 1140 828 66 132 0 1005 0
Current children cumulated CPU time (s) 30.3
Current children cumulated vsize (KiB) 4560

[startup+30.7332 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1288296/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=4560 CPUtime=30.71
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 844 0 0 0 3071 0 0 0 25 0 1 0 271061128 4669440 828 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551713 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 1140 828 66 132 0 1005 0
Current children cumulated CPU time (s) 30.71
Current children cumulated vsize (KiB) 4560

[startup+30.9372 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1288296/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=4560 CPUtime=30.91
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 844 0 0 0 3091 0 0 0 25 0 1 0 271061128 4669440 828 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551697 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 1140 828 66 132 0 1005 0
Current children cumulated CPU time (s) 30.91
Current children cumulated vsize (KiB) 4560

[startup+31.0392 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 22809
/proc/meminfo: memFree=1288296/2055920 swapFree=4192812/4192956
[pid=22808] ppid=22806 vsize=4560 CPUtime=31.02
/proc/22808/stat : 22808 (minimarch) R 22806 22808 21313 0 -1 4194304 844 0 0 0 3102 0 0 0 25 0 1 0 271061128 4669440 828 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551660 0 0 4096 3 0 0 0 17 1 0 0
/proc/22808/statm: 1140 828 66 132 0 1005 0
Current children cumulated CPU time (s) 31.02
Current children cumulated vsize (KiB) 4560

Child status: 20
Real time (s): 31.0577
CPU time (s): 31.0473
CPU user time (s): 31.0383
CPU system time (s): 0.008998
CPU usage (%): 99.9664
Max. virtual memory (cumulated for all children) (KiB): 4560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.0383
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 850
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= 41

runsolver used 0.038994 second user time and 0.076988 second system time

The end

Launcher Data (download as text)

Begin job on node19 on Mon Feb 26 17:31:11 UTC 2007

IDJOB= 307997
IDBENCH= 20220
IDSOLVER= 110
FILE ID= node19/307997-1172511071

PBS_JOBID= 3971596

Free space on /tmp= 66558 MiB

SOLVER NAME= minimarch 2007-02-08
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/307997-1172511071/minimarch /tmp/evaluation/307997-1172511071/instance-307997-1172511071.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-307997-1172511071 -o ROOT/results/node19/solver-307997-1172511071 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/307997-1172511071/minimarch /tmp/evaluation/307997-1172511071/instance-307997-1172511071.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  cc733e9a0d26b1e09913a40f9eba8e3c

RANDOM SEED= 419228517

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node19.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		: 3000.214
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		: 3000.214
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:       1292096 kB
Buffers:         65448 kB
Cached:         577696 kB
SwapCached:          0 kB
Active:         305992 kB
Inactive:       381104 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1292096 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2492 kB
Writeback:           0 kB
Mapped:          62832 kB
Slab:            62356 kB
Committed_AS:   990148 kB
PageTables:       1756 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= 66558 MiB

End job on node19 on Mon Feb 26 17:31:42 UTC 2007