Trace number 1773722

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 2.75658 2.75757

General information on the benchmark

NameAPPLICATIONS/bitverif/
countbitssrl/countbitssrl016.cnf
MD5SUM505fee3283f518ccb9d234f549b3c214
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.75658
Satisfiable
(Un)Satisfiability was proved
Number of variables4567
Number of clauses13652
Sum of the clauses size31852
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 29100
Number of clauses of size 34550
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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:          4567                                         |
0.00/0.01	c |  Number of clauses:           13650                                         |
0.00/0.01	c |  Parse time:                   0.01 s                                       |
0.00/0.06	c |  Simplification time:          0.04 s                                       |
0.00/0.06	c |                                                                             |
0.00/0.06	c ============================[ Search Statistics ]==============================
0.00/0.06	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.06	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.06	c ===============================================================================
0.00/0.07	c |       100 |    1687     8375    25852 |     3070      100     30 |  0.044 % |
0.07/0.08	c |       250 |    1635     8123    25123 |     3377      236     26 |  1.183 % |
0.07/0.10	c |       475 |    1635     8118    25108 |     3715      461     27 |  1.183 % |
0.09/0.14	c |       812 |    1615     8035    24856 |     4087      795     31 |  1.621 % |
0.09/0.19	c |      1318 |    1615     8035    24856 |     4496     1301     31 |  1.621 % |
0.29/0.30	c |      2077 |    1615     8035    24856 |     4945     2060     32 |  1.621 % |
0.39/0.45	c |      3216 |    1615     8035    24856 |     5440     3199     33 |  1.620 % |
0.59/0.67	c |      4924 |    1611     8019    24810 |     5984     4901     32 |  1.708 % |
1.00/1.05	c |      7486 |    1611     8019    24810 |     6582     4263     27 |  1.708 % |
1.59/1.65	c |     11330 |    1611     8019    24810 |     7240     4701     25 |  1.708 % |
2.49/2.53	c |     17096 |    1611     8019    24810 |     7964     6671     24 |  1.709 % |
2.69/2.75	c ===============================================================================
2.69/2.75	c restarts              : 63
2.69/2.75	c conflicts             : 18268          (6639 /sec)
2.69/2.75	c decisions             : 25882          (9406 /sec)
2.69/2.75	c propagations          : 5456129        (1982907 /sec)
2.69/2.75	c conflict literals     : 538089         (71.94 % deleted)
2.69/2.75	c Memory used           : 13.88 MB
2.69/2.75	c CPU time              : 2.75158 s
2.69/2.75	c 
2.69/2.75	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-1773722-1241213169/watcher-1773722-1241213169 -o /tmp/evaluation-result-1773722-1241213169/solver-1773722-1241213169 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773722-1241213169.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.95 0.96 0.98 3/64 24304
/proc/meminfo: memFree=1812080/2055920 swapFree=4180392/4192956
[pid=24304] ppid=24302 vsize=7616 CPUtime=0
/proc/24304/stat : 24304 (minisat) R 24302 24304 24240 0 -1 4194304 240 0 0 0 0 0 0 0 18 0 1 0 149350166 7798784 224 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/24304/statm: 1904 224 63 219 0 1682 0

[startup+0.0746961 s]
/proc/loadavg: 0.95 0.96 0.98 3/64 24304
/proc/meminfo: memFree=1812080/2055920 swapFree=4180392/4192956
[pid=24304] ppid=24302 vsize=9016 CPUtime=0.07
/proc/24304/stat : 24304 (minisat) R 24302 24304 24240 0 -1 4194304 764 0 0 0 7 0 0 0 18 0 1 0 149350166 9232384 625 1992294400 4194304 5092341 548682068848 18446744073709551615 4247231 0 0 4096 3 0 0 0 17 1 0 0
/proc/24304/statm: 2254 625 100 219 0 2032 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 9016

[startup+0.102699 s]
/proc/loadavg: 0.95 0.96 0.98 3/64 24304
/proc/meminfo: memFree=1812080/2055920 swapFree=4180392/4192956
[pid=24304] ppid=24302 vsize=9016 CPUtime=0.09
/proc/24304/stat : 24304 (minisat) R 24302 24304 24240 0 -1 4194304 774 0 0 0 9 0 0 0 18 0 1 0 149350166 9232384 635 1992294400 4194304 5092341 548682068848 18446744073709551615 4250061 0 0 4096 3 0 0 0 17 1 0 0
/proc/24304/statm: 2254 635 100 219 0 2032 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9016

[startup+0.301722 s]
/proc/loadavg: 0.95 0.96 0.98 3/64 24304
/proc/meminfo: memFree=1812080/2055920 swapFree=4180392/4192956
[pid=24304] ppid=24302 vsize=9016 CPUtime=0.29
/proc/24304/stat : 24304 (minisat) R 24302 24304 24240 0 -1 4194304 830 0 0 0 29 0 0 0 19 0 1 0 149350166 9232384 691 1992294400 4194304 5092341 548682068848 18446744073709551615 4249569 0 0 4096 3 0 0 0 17 1 0 0
/proc/24304/statm: 2254 691 100 219 0 2032 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9016

[startup+0.70277 s]
/proc/loadavg: 0.95 0.96 0.98 3/64 24304
/proc/meminfo: memFree=1812080/2055920 swapFree=4180392/4192956
[pid=24304] ppid=24302 vsize=9016 CPUtime=0.69
/proc/24304/stat : 24304 (minisat) R 24302 24304 24240 0 -1 4194304 933 0 0 0 69 0 0 0 23 0 1 0 149350166 9232384 794 1992294400 4194304 5092341 548682068848 18446744073709551615 4248209 0 0 4096 3 0 0 0 17 1 0 0
/proc/24304/statm: 2254 794 101 219 0 2032 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9016

[startup+1.50186 s]
/proc/loadavg: 0.96 0.96 0.98 2/65 24305
/proc/meminfo: memFree=1809448/2055920 swapFree=4180392/4192956
[pid=24304] ppid=24302 vsize=14204 CPUtime=1.49
/proc/24304/stat : 24304 (minisat) R 24302 24304 24240 0 -1 4194304 1321 0 0 0 149 0 0 0 25 0 1 0 149350166 14544896 933 1992294400 4194304 5092341 548682068848 18446744073709551615 4248386 0 0 4096 3 0 0 0 17 1 0 0
/proc/24304/statm: 3551 933 101 219 0 3329 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14204

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

[startup+2.30195 s]
/proc/loadavg: 0.96 0.96 0.98 2/65 24305
/proc/meminfo: memFree=1808104/2055920 swapFree=4180392/4192956
[pid=24304] ppid=24302 vsize=14204 CPUtime=2.29
/proc/24304/stat : 24304 (minisat) R 24302 24304 24240 0 -1 4194304 1432 0 0 0 229 0 0 0 25 0 1 0 149350166 14544896 1044 1992294400 4194304 5092341 548682068848 18446744073709551615 4248079 0 0 4096 3 0 0 0 17 1 0 0
/proc/24304/statm: 3551 1044 101 219 0 3329 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 14204

[startup+2.702 s]
/proc/loadavg: 0.96 0.96 0.98 2/65 24305
/proc/meminfo: memFree=1808104/2055920 swapFree=4180392/4192956
[pid=24304] ppid=24302 vsize=14204 CPUtime=2.69
/proc/24304/stat : 24304 (minisat) R 24302 24304 24240 0 -1 4194304 1432 0 0 0 269 0 0 0 25 0 1 0 149350166 14544896 1044 1992294400 4194304 5092341 548682068848 18446744073709551615 4241098 0 0 4096 3 0 0 0 17 1 0 0
/proc/24304/statm: 3551 1044 101 219 0 3329 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 14204

Child status: 20
Real time (s): 2.75757
CPU time (s): 2.75658
CPU user time (s): 2.75158
CPU system time (s): 0.004999
CPU usage (%): 99.9639
Max. virtual memory (cumulated for all children) (KiB): 14204

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.75158
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1442
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= 8

runsolver used 0.004999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-05-01 23:26:09
IDJOB=1773722
IDBENCH=70783
IDSOLVER=608
FILE ID=node20/1773722-1241213169
PBS_JOBID= 9224729
Free space on /tmp= 66440 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/countbitssrl/countbitssrl016.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773722-1241213169/watcher-1773722-1241213169 -o /tmp/evaluation-result-1773722-1241213169/solver-1773722-1241213169 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773722-1241213169.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 505fee3283f518ccb9d234f549b3c214
RANDOM SEED=1317993435

node20.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		: 3000.214
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:       1812496 kB
Buffers:         61984 kB
Cached:          97752 kB
SwapCached:       6320 kB
Active:          22824 kB
Inactive:       144956 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1812496 kB
SwapTotal:     4192956 kB
SwapFree:      4180392 kB
Dirty:            1192 kB
Writeback:           0 kB
Mapped:          13428 kB
Slab:            61632 kB
Committed_AS:   774412 kB
PageTables:       1396 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= 66440 MiB
End job on node20 at 2009-05-01 23:26:12