Trace number 316266

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 1.74973 1.7511

General information on the benchmark

Namecrafted/spence/
medium/s57-100.cnf
MD5SUM4dc4c11d420a4a03c2a3fdf77861be5d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.703892
Satisfiable
(Un)Satisfiability was proved
Number of variables57
Number of clauses124
Sum of the clauses size372
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3124
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:  57                                                   |
0.00/0.00	|  Number of clauses:    124                                                  |
0.00/0.00	|  Parsing time:         0.00         s                                       |
0.00/0.00	============================[ Search Statistics ]==============================
0.00/0.00	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	===============================================================================
0.00/0.00	|         0 |      57      124      372 |       41        0    nan |  0.000 % |
0.00/0.00	|       100 |      57      124      372 |       45       70     11 |  0.031 % |
0.00/0.00	|       251 |      57      124      372 |       50       58     10 |  0.031 % |
0.00/0.00	|       476 |      57      124      372 |       55       61      9 |  0.031 % |
0.00/0.01	|       813 |      57      124      372 |       60       44      9 |  0.031 % |
0.01/0.01	|      1320 |      57      124      372 |       66       90     10 |  0.031 % |
0.01/0.02	|      2079 |      57      124      372 |       73       73      8 |  0.031 % |
0.01/0.03	|      3219 |      57      124      372 |       80       83      9 |  0.031 % |
0.01/0.05	|      4928 |      57      124      372 |       88       78      8 |  0.031 % |
0.01/0.08	|      7490 |      57      124      372 |       97       66      7 |  0.031 % |
0.09/0.13	|     11334 |      57      124      372 |      107      105      9 |  0.031 % |
0.19/0.20	|     17100 |      57      124      372 |      117       93      8 |  0.031 % |
0.29/0.30	|     25749 |      57      124      372 |      129      101      8 |  0.032 % |
0.39/0.46	|     38723 |      57      124      372 |      142      141      8 |  0.033 % |
0.69/0.70	|     58184 |      57      124      372 |      156      138      7 |  0.062 % |
1.00/1.07	|     87376 |      57      124      372 |      172      104      6 |  0.064 % |
1.59/1.60	|    131165 |      55      115      345 |      189      139      5 |  3.786 % |
1.69/1.74	===============================================================================
1.69/1.74	lookaheads            : 155002
1.69/1.74	variable balance      : 0.00
1.69/1.74	restarts              : 17
1.69/1.74	conflicts             : 143159         (81958 /sec)
1.69/1.74	decisions             : 155002         (1.55 % random) (88738 /sec)
1.69/1.74	decision = positive   : 82857
1.69/1.74	decision = negative   : 72145
1.69/1.74	propagations          : 3384046        (1937356 /sec)
1.69/1.74	conflict literals     : 1394770        (16.22 % deleted)
1.69/1.74	Memory used           : 1.70 MB
1.69/1.74	CPU time              : 1.74673 s
1.69/1.74	
1.69/1.74	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node43/watcher-316266-1172666515 -o ROOT/results/node43/solver-316266-1172666515 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316266-1172666515/minimarch /tmp/evaluation/316266-1172666515/instance-316266-1172666515.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 0.99 3/64 22062
/proc/meminfo: memFree=869888/2055920 swapFree=4177360/4192956
[pid=22062] ppid=22060 vsize=1732 CPUtime=0
/proc/22062/stat : 22062 (minimarch) R 22060 22062 21488 0 -1 4194304 98 0 0 0 0 0 0 0 18 0 1 0 286607567 1773568 82 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134688255 0 0 4096 3 0 0 0 17 1 0 0
/proc/22062/statm: 433 82 66 132 0 298 0

[startup+0.0133099 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 22062
/proc/meminfo: memFree=869888/2055920 swapFree=4177360/4192956
[pid=22062] ppid=22060 vsize=1732 CPUtime=0.01
/proc/22062/stat : 22062 (minimarch) R 22060 22062 21488 0 -1 4194304 99 0 0 0 1 0 0 0 18 0 1 0 286607567 1773568 83 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134553469 0 0 4096 3 0 0 0 17 1 0 0
/proc/22062/statm: 433 83 66 132 0 298 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1732

[startup+0.101325 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 22062
/proc/meminfo: memFree=869888/2055920 swapFree=4177360/4192956
[pid=22062] ppid=22060 vsize=1732 CPUtime=0.09
/proc/22062/stat : 22062 (minimarch) R 22060 22062 21488 0 -1 4194304 101 0 0 0 9 0 0 0 18 0 1 0 286607567 1773568 85 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134553238 0 0 4096 3 0 0 0 17 1 0 0
/proc/22062/statm: 433 85 66 132 0 298 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1732

[startup+0.301358 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 22062
/proc/meminfo: memFree=869888/2055920 swapFree=4177360/4192956
[pid=22062] ppid=22060 vsize=1732 CPUtime=0.29
/proc/22062/stat : 22062 (minimarch) R 22060 22062 21488 0 -1 4194304 101 0 0 0 29 0 0 0 19 0 1 0 286607567 1773568 85 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134551511 0 0 4096 3 0 0 0 17 1 0 0
/proc/22062/statm: 433 85 66 132 0 298 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1732

[startup+0.701424 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 22062
/proc/meminfo: memFree=869888/2055920 swapFree=4177360/4192956
[pid=22062] ppid=22060 vsize=1732 CPUtime=0.69
/proc/22062/stat : 22062 (minimarch) R 22060 22062 21488 0 -1 4194304 102 0 0 0 69 0 0 0 22 0 1 0 286607567 1773568 86 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134522048 0 0 4096 3 0 0 0 17 1 0 0
/proc/22062/statm: 433 86 66 132 0 298 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1732

[startup+1.50156 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 22063
/proc/meminfo: memFree=869752/2055920 swapFree=4177360/4192956
[pid=22062] ppid=22060 vsize=1732 CPUtime=1.49
/proc/22062/stat : 22062 (minimarch) R 22060 22062 21488 0 -1 4194304 103 0 0 0 149 0 0 0 25 0 1 0 286607567 1773568 87 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/22062/statm: 433 87 66 132 0 298 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1732

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

[startup+1.70159 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 22063
/proc/meminfo: memFree=869752/2055920 swapFree=4177360/4192956
[pid=22062] ppid=22060 vsize=1732 CPUtime=1.69
/proc/22062/stat : 22062 (minimarch) R 22060 22062 21488 0 -1 4194304 104 0 0 0 169 0 0 0 25 0 1 0 286607567 1773568 88 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134563373 0 0 4096 3 0 0 0 17 1 0 0
/proc/22062/statm: 433 88 66 132 0 298 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 1732

Child status: 20
Real time (s): 1.7511
CPU time (s): 1.74973
CPU user time (s): 1.74673
CPU system time (s): 0.002999
CPU usage (%): 99.922
Max. virtual memory (cumulated for all children) (KiB): 1732

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.74673
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 112
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= 2

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Wed Feb 28 12:41:55 UTC 2007

IDJOB= 316266
IDBENCH= 20437
IDSOLVER= 110
FILE ID= node43/316266-1172666515

PBS_JOBID= 3981218

Free space on /tmp= 66526 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s57-100.cnf
COMMAND LINE= /tmp/evaluation/316266-1172666515/minimarch /tmp/evaluation/316266-1172666515/instance-316266-1172666515.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-316266-1172666515 -o ROOT/results/node43/solver-316266-1172666515 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316266-1172666515/minimarch /tmp/evaluation/316266-1172666515/instance-316266-1172666515.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  4dc4c11d420a4a03c2a3fdf77861be5d

RANDOM SEED= 861709717

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node43.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		: 3000.281
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		: 3000.281
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:        870360 kB
Buffers:         42592 kB
Cached:        1082116 kB
SwapCached:       9940 kB
Active:         449340 kB
Inactive:       691944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        870360 kB
SwapTotal:     4192956 kB
SwapFree:      4177360 kB
Dirty:            2388 kB
Writeback:           0 kB
Mapped:          15384 kB
Slab:            30324 kB
Committed_AS:   719220 kB
PageTables:       1392 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= 66526 MiB

End job on node43 on Wed Feb 28 12:41:57 UTC 2007