Trace number 1719571

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 2.71159 2.71304

General information on the benchmark

Namecmu-bmc-barrel6.cnf
MD5SUMcc87f90bf08e13838e59f0f2639db121
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.108983
Satisfiable
(Un)Satisfiability was proved
Number of variables2306
Number of clauses8931
Sum of the clauses size24664
Maximum clause length217
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22629
Number of clauses of size 36048
Number of clauses of size 4252
Number of clauses of size 50
Number of clauses of size over 52

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 |                                                                             |
0.00/0.01	c |  Number of variables:          2306                                         |
0.00/0.01	c |  Number of clauses:            8931                                         |
0.00/0.01	c |  Parse time:                   0.01 s                                       |
0.00/0.03	c |  Simplification time:          0.03 s                                       |
0.00/0.03	c |                                                                             |
0.00/0.03	c ============================[ Search Statistics ]==============================
0.00/0.03	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.03	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.03	c ===============================================================================
0.03/0.04	c |       100 |     602     4533    20440 |     1662      100     51 |  0.000 % |
0.03/0.05	c |       250 |     601     4533    20440 |     1828      249     64 |  0.044 % |
0.03/0.06	c |       475 |     601     4531    20436 |     2011      474     62 |  0.043 % |
0.03/0.08	c |       812 |     600     4531    20436 |     2212      810     66 |  0.087 % |
0.09/0.11	c |      1318 |     597     4514    20356 |     2433     1298     67 |  0.217 % |
0.09/0.15	c |      2077 |     596     4507    20334 |     2676     2055     61 |  0.260 % |
0.19/0.23	c |      3216 |     590     4468    20156 |     2944     1711     61 |  0.521 % |
0.29/0.34	c |      4924 |     586     4441    20040 |     3238     1900     57 |  0.694 % |
0.49/0.50	c |      7486 |     583     4441    20040 |     3562     2755     54 |  0.824 % |
0.69/0.75	c |     11330 |     574     4248    19086 |     3919     2802     55 |  1.215 % |
1.09/1.13	c |     17096 |     568     4158    18630 |     4311     2430     35 |  1.475 % |
1.59/1.67	c |     25745 |     562     4068    18174 |     4742     4323     39 |  1.735 % |
2.39/2.46	c |     38719 |     559     4033    18004 |     5216     2647     24 |  1.865 % |
2.69/2.71	c ===============================================================================
2.69/2.71	c restarts              : 127
2.69/2.71	c conflicts             : 42872          (15887 /sec)
2.69/2.71	c decisions             : 174448         (64644 /sec)
2.69/2.71	c propagations          : 4062615        (1505459 /sec)
2.69/2.71	c conflict literals     : 2170818        (45.47 % deleted)
2.69/2.71	c Memory used           : 18.22 MB
2.69/2.71	c CPU time              : 2.69859 s
2.69/2.71	c 
2.69/2.71	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-1719571-1240647583/watcher-1719571-1240647583 -o /tmp/evaluation-result-1719571-1240647583/solver-1719571-1240647583 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1719571-1240647583.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: 0.92 0.98 1.14 3/64 18752
/proc/meminfo: memFree=1918496/2055920 swapFree=4192812/4192956
[pid=18752] ppid=18750 vsize=7612 CPUtime=0
/proc/18752/stat : 18752 (minisat) R 18750 18752 18132 0 -1 4194304 221 0 0 0 0 0 0 0 18 0 1 0 92785475 7794688 205 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/18752/statm: 1903 205 63 219 0 1681 0

[startup+0.041709 s]
/proc/loadavg: 0.92 0.98 1.14 3/64 18752
/proc/meminfo: memFree=1918496/2055920 swapFree=4192812/4192956
[pid=18752] ppid=18750 vsize=8260 CPUtime=0.03
/proc/18752/stat : 18752 (minisat) R 18750 18752 18132 0 -1 4194304 489 0 0 0 3 0 0 0 18 0 1 0 92785475 8458240 395 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/18752/statm: 2065 395 92 219 0 1843 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 8260

[startup+0.101715 s]
/proc/loadavg: 0.92 0.98 1.14 3/64 18752
/proc/meminfo: memFree=1918496/2055920 swapFree=4192812/4192956
[pid=18752] ppid=18750 vsize=8260 CPUtime=0.09
/proc/18752/stat : 18752 (minisat) R 18750 18752 18132 0 -1 4194304 573 0 0 0 9 0 0 0 18 0 1 0 92785475 8458240 479 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/18752/statm: 2065 479 100 219 0 1843 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8260

[startup+0.301737 s]
/proc/loadavg: 0.92 0.98 1.14 3/64 18752
/proc/meminfo: memFree=1918496/2055920 swapFree=4192812/4192956
[pid=18752] ppid=18750 vsize=8256 CPUtime=0.29
/proc/18752/stat : 18752 (minisat) R 18750 18752 18132 0 -1 4194304 879 0 0 0 29 0 0 0 19 0 1 0 92785475 8454144 579 1992294400 4194304 5092341 548682068832 18446744073709551615 4249569 0 0 4096 3 0 0 0 17 1 0 0
/proc/18752/statm: 2064 579 103 219 0 1842 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8256

[startup+0.701782 s]
/proc/loadavg: 0.92 0.98 1.14 3/64 18752
/proc/meminfo: memFree=1918496/2055920 swapFree=4192812/4192956
[pid=18752] ppid=18750 vsize=13448 CPUtime=0.69
/proc/18752/stat : 18752 (minisat) R 18750 18752 18132 0 -1 4194304 1151 0 0 0 69 0 0 0 22 0 1 0 92785475 13770752 851 1992294400 4194304 5092341 548682068832 18446744073709551615 4262248 0 0 4096 3 0 0 0 17 1 0 0
/proc/18752/statm: 3362 851 103 219 0 3140 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13448

[startup+1.50187 s]
/proc/loadavg: 0.92 0.98 1.14 2/65 18753
/proc/meminfo: memFree=1915224/2055920 swapFree=4192812/4192956
[pid=18752] ppid=18750 vsize=23840 CPUtime=1.49
/proc/18752/stat : 18752 (minisat) R 18750 18752 18132 0 -1 4194304 1657 0 0 0 149 0 0 0 25 0 1 0 92785475 24412160 1357 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/18752/statm: 5960 1357 103 219 0 5738 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 23840

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

[startup+2.30196 s]
/proc/loadavg: 0.92 0.98 1.14 2/65 18753
/proc/meminfo: memFree=1914264/2055920 swapFree=4192812/4192956
[pid=18752] ppid=18750 vsize=18652 CPUtime=2.29
/proc/18752/stat : 18752 (minisat) R 18750 18752 18132 0 -1 4194304 1872 0 0 0 229 0 0 0 25 0 1 0 92785475 19099648 1119 1992294400 4194304 5092341 548682068832 18446744073709551615 4262176 0 0 4096 3 0 0 0 17 1 0 0
/proc/18752/statm: 4663 1119 103 219 0 4441 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 18652

[startup+2.702 s]
/proc/loadavg: 0.92 0.98 1.14 2/65 18753
/proc/meminfo: memFree=1914264/2055920 swapFree=4192812/4192956
[pid=18752] ppid=18750 vsize=18652 CPUtime=2.69
/proc/18752/stat : 18752 (minisat) R 18750 18752 18132 0 -1 4194304 1872 0 0 0 268 1 0 0 25 0 1 0 92785475 19099648 1119 1992294400 4194304 5092341 548682068832 18446744073709551615 4250291 0 0 4096 3 0 0 0 17 1 0 0
/proc/18752/statm: 4663 1119 103 219 0 4441 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 18652

Child status: 20
Real time (s): 2.71304
CPU time (s): 2.71159
CPU user time (s): 2.69859
CPU system time (s): 0.012998
CPU usage (%): 99.9463
Max. virtual memory (cumulated for all children) (KiB): 23840

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.69859
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1882
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= 4

runsolver used 0.005999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node59 at 2009-04-25 10:19:43
IDJOB=1719571
IDBENCH=69564
IDSOLVER=546
FILE ID=node59/1719571-1240647583
PBS_JOBID= 9186431
Free space on /tmp= 66360 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE08/cnf/cmu-bmc-barrel6.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1719571-1240647583/watcher-1719571-1240647583 -o /tmp/evaluation-result-1719571-1240647583/solver-1719571-1240647583 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1719571-1240647583.cnf

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

MD5SUM BENCH= cc87f90bf08e13838e59f0f2639db121
RANDOM SEED=2135407612

node59.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		: 3000.240
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		: 3000.240
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:       1918912 kB
Buffers:          3836 kB
Cached:          62668 kB
SwapCached:          0 kB
Active:          68348 kB
Inactive:        12092 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1918912 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1052 kB
Writeback:           0 kB
Mapped:          23696 kB
Slab:            42520 kB
Committed_AS:   363908 kB
PageTables:       1456 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= 66360 MiB
End job on node59 at 2009-04-25 10:19:46