Trace number 3276234

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
SAT07 reference solver: minisat SAT 2007UNSAT 2.51562 2.51598

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_3900_3900_060.shuffled.cnf
MD5SUM8fb426184fc34ee36ee1bb5e07551b2d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.20681
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses936
Sum of the clauses size4520
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 37
Number of clauses of size 4146
Number of clauses of size 5783
Number of clauses of size over 50

Solver Data 

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  60                                                   |
0.00/0.00	c |  Number of clauses:    936                                                  |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      60      935     4513 |      311        0    nan |  0.000 % |
0.00/0.00	c |       102 |      60      935     4513 |      342      102     14 |  0.028 % |
0.00/0.00	c |       253 |      60      935     4513 |      377      253     14 |  0.028 % |
0.00/0.00	c |       478 |      60      935     4513 |      414      284     13 |  0.028 % |
0.00/0.01	c |       815 |      60      935     4513 |      456      410     13 |  0.028 % |
0.00/0.01	c |      1321 |      60      935     4513 |      501      450     12 |  0.028 % |
0.00/0.02	c |      2080 |      60      935     4513 |      552      439     12 |  0.028 % |
0.00/0.03	c |      3219 |      60      935     4513 |      607      450     11 |  0.028 % |
0.00/0.05	c |      4927 |      60      935     4513 |      668      612     12 |  0.028 % |
0.06/0.08	c |      7489 |      60      935     4513 |      734      469     11 |  0.028 % |
0.09/0.12	c |     11333 |      60      935     4513 |      808      597     11 |  0.028 % |
0.09/0.19	c |     17100 |      60      935     4513 |      889      649     11 |  0.028 % |
0.19/0.29	c |     25750 |      60      935     4513 |      978      787     11 |  0.028 % |
0.39/0.45	c |     38724 |      60      935     4513 |     1075      939     11 |  0.028 % |
0.59/0.68	c |     58186 |      60      935     4513 |     1183      909     11 |  0.056 % |
1.00/1.05	c |     87379 |      60      935     4513 |     1301      966     10 |  0.032 % |
1.60/1.60	c |    131168 |      60      935     4513 |     1432      941     12 |  0.056 % |
2.40/2.44	c |    196853 |      56      792     3818 |     1575      781      9 |  6.695 % |
2.50/2.51	c ===============================================================================
2.50/2.51	c restarts              : 18
2.50/2.51	c conflicts             : 202190         (80406 /sec)
2.50/2.51	c decisions             : 223345         (1.74 % random) (88819 /sec)
2.50/2.51	c propagations          : 2552703        (1015146 /sec)
2.50/2.51	c conflict literals     : 2308430        (26.09 % deleted)
2.50/2.51	c Memory used           : 1.95 MB
2.50/2.51	c CPU time              : 2.51462 s
2.50/2.51	c 
2.50/2.51	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3276234-1303667426/watcher-3276234-1303667426 -o /tmp/evaluation-result-3276234-1303667426/solver-3276234-1303667426 -C 5000 -W 5100 -M 15500 --output-limit 1,15 HOME/minisat_noassertions HOME/instance-3276234-1303667426.cnf 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 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: 2.18 2.73 2.56 3/175 7761
/proc/meminfo: memFree=19191180/32951132 swapFree=67111524/67111528
[pid=7761] ppid=7759 vsize=1732 CPUtime=0 cores=1,3,5,7
/proc/7761/stat : 7761 (minisat_noasser) R 7759 7761 7586 0 -1 4202496 149 0 0 0 0 0 0 0 25 0 1 0 478342206 1773568 105 33554432000 134512640 135048876 4287945888 18446744073709551615 134700109 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/7761/statm: 433 105 66 131 0 300 0

[startup+0.0703829 s]
/proc/loadavg: 2.18 2.73 2.56 3/175 7761
/proc/meminfo: memFree=19191180/32951132 swapFree=67111524/67111528
[pid=7761] ppid=7759 vsize=1864 CPUtime=0.06 cores=1,3,5,7
/proc/7761/stat : 7761 (minisat_noasser) R 7759 7761 7586 0 -1 4202496 159 0 0 0 6 0 0 0 25 0 1 0 478342206 1908736 115 33554432000 134512640 135048876 4287945888 18446744073709551615 134552795 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/7761/statm: 466 115 66 131 0 333 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1864

[startup+0.100377 s]
/proc/loadavg: 2.18 2.73 2.56 3/175 7761
/proc/meminfo: memFree=19191180/32951132 swapFree=67111524/67111528
[pid=7761] ppid=7759 vsize=1864 CPUtime=0.09 cores=1,3,5,7
/proc/7761/stat : 7761 (minisat_noasser) R 7759 7761 7586 0 -1 4202496 162 0 0 0 9 0 0 0 25 0 1 0 478342206 1908736 118 33554432000 134512640 135048876 4287945888 18446744073709551615 134547313 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/7761/statm: 466 118 66 131 0 333 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1864

[startup+0.300354 s]
/proc/loadavg: 2.18 2.73 2.56 3/175 7761
/proc/meminfo: memFree=19191180/32951132 swapFree=67111524/67111528
[pid=7761] ppid=7759 vsize=1864 CPUtime=0.29 cores=1,3,5,7
/proc/7761/stat : 7761 (minisat_noasser) R 7759 7761 7586 0 -1 4202496 174 0 0 0 29 0 0 0 25 0 1 0 478342206 1908736 130 33554432000 134512640 135048876 4287945888 18446744073709551615 134546931 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/7761/statm: 466 130 66 131 0 333 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1864

[startup+0.700286 s]
/proc/loadavg: 2.18 2.73 2.56 3/175 7761
/proc/meminfo: memFree=19191180/32951132 swapFree=67111524/67111528
[pid=7761] ppid=7759 vsize=1864 CPUtime=0.69 cores=1,3,5,7
/proc/7761/stat : 7761 (minisat_noasser) R 7759 7761 7586 0 -1 4202496 184 0 0 0 69 0 0 0 25 0 1 0 478342206 1908736 140 33554432000 134512640 135048876 4287945888 18446744073709551615 134547270 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/7761/statm: 466 140 66 131 0 333 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1864

[startup+1.50015 s]
/proc/loadavg: 2.17 2.72 2.55 3/176 7762
/proc/meminfo: memFree=19190832/32951132 swapFree=67111524/67111528
[pid=7761] ppid=7759 vsize=1996 CPUtime=1.49 cores=1,3,5,7
/proc/7761/stat : 7761 (minisat_noasser) R 7759 7761 7586 0 -1 4202496 201 0 0 0 149 0 0 0 25 0 1 0 478342206 2043904 157 33554432000 134512640 135048876 4287945888 18446744073709551615 134547318 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/7761/statm: 499 157 66 131 0 366 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1996

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

[startup+2.30101 s]
/proc/loadavg: 2.17 2.72 2.55 3/176 7762
/proc/meminfo: memFree=19190336/32951132 swapFree=67111524/67111528
[pid=7761] ppid=7759 vsize=1996 CPUtime=2.3 cores=1,3,5,7
/proc/7761/stat : 7761 (minisat_noasser) R 7759 7761 7586 0 -1 4202496 211 0 0 0 230 0 0 0 25 0 1 0 478342206 2043904 167 33554432000 134512640 135048876 4287945888 18446744073709551615 134551468 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/7761/statm: 499 167 66 131 0 366 0
Current children cumulated CPU time (s) 2.3
Current children cumulated vsize (KiB) 1996

[startup+2.50098 s]
/proc/loadavg: 2.17 2.72 2.55 3/176 7762
/proc/meminfo: memFree=19190336/32951132 swapFree=67111524/67111528
[pid=7761] ppid=7759 vsize=1996 CPUtime=2.5 cores=1,3,5,7
/proc/7761/stat : 7761 (minisat_noasser) R 7759 7761 7586 0 -1 4202496 212 0 0 0 250 0 0 0 25 0 1 0 478342206 2043904 168 33554432000 134512640 135048876 4287945888 18446744073709551615 134547006 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/7761/statm: 499 168 66 131 0 366 0
Current children cumulated CPU time (s) 2.5
Current children cumulated vsize (KiB) 1996

Child status: 20
Real time (s): 2.51598
CPU time (s): 2.51562
CPU user time (s): 2.51462
CPU system time (s): 0.000999
CPU usage (%): 99.9857
Max. virtual memory (cumulated for all children) (KiB): 1996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.51462
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 218
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= 6

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node129 at 2011-04-24 19:50:26
IDJOB=3276234
IDBENCH=87444
IDSOLVER=1678
FILE ID=node129/3276234-1303667426
RUNJOBID= node129-1303667388-7605
PBS_JOBID= 13150765
Free space on /tmp= 66404 MiB

SOLVER NAME= SAT07 reference solver: minisat SAT 2007
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3900_3900_060.shuffled.cnf
COMMAND LINE= HOME/minisat_noassertions BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3276234-1303667426/watcher-3276234-1303667426 -o /tmp/evaluation-result-3276234-1303667426/solver-3276234-1303667426 -C 5000 -W 5100 -M 15500 --output-limit 1,15  HOME/minisat_noassertions HOME/instance-3276234-1303667426.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 8fb426184fc34ee36ee1bb5e07551b2d
RANDOM SEED=1646418171

node129.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.831
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.66
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.831
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.831
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.831
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.831
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.831
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.831
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.831
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      19191460 kB
Buffers:       1221804 kB
Cached:       11808344 kB
SwapCached:          4 kB
Active:        1771860 kB
Inactive:     11327992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      19191460 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:            1232 kB
Writeback:          16 kB
AnonPages:       69136 kB
Mapped:          15536 kB
Slab:           598452 kB
PageTables:       4452 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   214020 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66404 MiB
End job on node129 at 2011-04-24 19:50:28