Trace number 3274808

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 2.52961 2.52953

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 benchmark0.369943
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 % |
0.05/0.05	c |      4927 |      60      935     4513 |      668      612     12 |  0.028 % |
0.05/0.08	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 % |
0.59/0.69	c |     58186 |      60      935     4513 |     1183      909     11 |  0.056 % |
1.00/1.06	c |     87379 |      60      935     4513 |     1301      966     10 |  0.032 % |
1.60/1.61	c |    131168 |      60      935     4513 |     1432      941     12 |  0.056 % |
2.40/2.46	c |    196853 |      56      792     3818 |     1575      781      9 |  6.695 % |
2.50/2.52	c ===============================================================================
2.50/2.52	c restarts              : 18
2.50/2.52	c conflicts             : 202190         (79961 /sec)
2.50/2.52	c decisions             : 223345         (1.74 % random) (88327 /sec)
2.50/2.52	c propagations          : 2552703        (1009526 /sec)
2.50/2.52	c conflict literals     : 2308430        (26.09 % deleted)
2.50/2.52	c Memory used           : 1.95 MB
2.50/2.52	c CPU time              : 2.52861 s
2.50/2.52	c 
2.50/2.52	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-3274808-1303610143/watcher-3274808-1303610143 -o /tmp/evaluation-result-3274808-1303610143/solver-3274808-1303610143 -C 2400 -W 1300 -M 7680 --output-limit 1,15 HOME/minisat_noassertions HOME/instance-3274808-1303610143.cnf 

running on 2 cores: 5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 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: 3.83 3.94 3.92 4/189 21450
/proc/meminfo: memFree=24645548/32951124 swapFree=67111412/67111528
[pid=21450] ppid=21448 vsize=1728 CPUtime=0 cores=5,7
/proc/21450/stat : 21450 (minisat_noasser) R 21448 21450 20041 0 -1 4202496 149 0 0 0 0 0 0 0 25 0 1 0 472612065 1769472 105 33554432000 134512640 135048876 4286846592 18446744073709551615 134700109 0 0 4096 3 0 0 0 17 5 0 0 0
/proc/21450/statm: 432 105 66 131 0 299 0

[startup+0.054348 s]
/proc/loadavg: 3.83 3.94 3.92 4/189 21450
/proc/meminfo: memFree=24645548/32951124 swapFree=67111412/67111528
[pid=21450] ppid=21448 vsize=1860 CPUtime=0.05 cores=5,7
/proc/21450/stat : 21450 (minisat_noasser) R 21448 21450 20041 0 -1 4202496 158 0 0 0 5 0 0 0 25 0 1 0 472612065 1904640 114 33554432000 134512640 135048876 4286846592 18446744073709551615 134546864 0 0 4096 3 0 0 0 17 5 0 0 0
/proc/21450/statm: 465 114 66 131 0 332 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1860

[startup+0.100329 s]
/proc/loadavg: 3.83 3.94 3.92 4/189 21450
/proc/meminfo: memFree=24645548/32951124 swapFree=67111412/67111528
[pid=21450] ppid=21448 vsize=1860 CPUtime=0.09 cores=5,7
/proc/21450/stat : 21450 (minisat_noasser) R 21448 21450 20041 0 -1 4202496 162 0 0 0 9 0 0 0 25 0 1 0 472612065 1904640 118 33554432000 134512640 135048876 4286846592 18446744073709551615 134553099 0 0 4096 3 0 0 0 17 5 0 0 0
/proc/21450/statm: 465 118 66 131 0 332 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1860

[startup+0.300293 s]
/proc/loadavg: 3.83 3.94 3.92 4/189 21450
/proc/meminfo: memFree=24645548/32951124 swapFree=67111412/67111528
[pid=21450] ppid=21448 vsize=1860 CPUtime=0.29 cores=5,7
/proc/21450/stat : 21450 (minisat_noasser) R 21448 21450 20041 0 -1 4202496 173 0 0 0 29 0 0 0 25 0 1 0 472612065 1904640 129 33554432000 134512640 135048876 4286846592 18446744073709551615 134548444 0 0 4096 3 0 0 0 17 5 0 0 0
/proc/21450/statm: 465 129 66 131 0 332 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1860

[startup+0.700231 s]
/proc/loadavg: 3.83 3.94 3.92 4/189 21450
/proc/meminfo: memFree=24645548/32951124 swapFree=67111412/67111528
[pid=21450] ppid=21448 vsize=1860 CPUtime=0.69 cores=5,7
/proc/21450/stat : 21450 (minisat_noasser) R 21448 21450 20041 0 -1 4202496 184 0 0 0 69 0 0 0 25 0 1 0 472612065 1904640 140 33554432000 134512640 135048876 4286846592 18446744073709551615 134546988 0 0 4096 3 0 0 0 17 5 0 0 0
/proc/21450/statm: 465 140 66 131 0 332 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1860

[startup+1.50108 s]
/proc/loadavg: 3.83 3.94 3.92 5/190 21451
/proc/meminfo: memFree=24644920/32951124 swapFree=67111412/67111528
[pid=21450] ppid=21448 vsize=1992 CPUtime=1.5 cores=5,7
/proc/21450/stat : 21450 (minisat_noasser) R 21448 21450 20041 0 -1 4202496 201 0 0 0 150 0 0 0 25 0 1 0 472612065 2039808 157 33554432000 134512640 135048876 4286846592 18446744073709551615 134547304 0 0 4096 3 0 0 0 17 5 0 0 0
/proc/21450/statm: 498 157 66 131 0 365 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1992

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

[startup+2.30093 s]
/proc/loadavg: 3.85 3.94 3.92 5/190 21451
/proc/meminfo: memFree=24644468/32951124 swapFree=67111412/67111528
[pid=21450] ppid=21448 vsize=1992 CPUtime=2.3 cores=5,7
/proc/21450/stat : 21450 (minisat_noasser) R 21448 21450 20041 0 -1 4202496 211 0 0 0 230 0 0 0 25 0 1 0 472612065 2039808 167 33554432000 134512640 135048876 4286846592 18446744073709551615 134546980 0 0 4096 3 0 0 0 17 5 0 0 0
/proc/21450/statm: 498 167 66 131 0 365 0
Current children cumulated CPU time (s) 2.3
Current children cumulated vsize (KiB) 1992

[startup+2.5009 s]
/proc/loadavg: 3.85 3.94 3.92 5/190 21451
/proc/meminfo: memFree=24644468/32951124 swapFree=67111412/67111528
[pid=21450] ppid=21448 vsize=1992 CPUtime=2.5 cores=5,7
/proc/21450/stat : 21450 (minisat_noasser) R 21448 21450 20041 0 -1 4202496 212 0 0 0 250 0 0 0 25 0 1 0 472612065 2039808 168 33554432000 134512640 135048876 4286846592 18446744073709551615 134552604 0 0 4096 3 0 0 0 17 5 0 0 0
/proc/21450/statm: 498 168 66 131 0 365 0
Current children cumulated CPU time (s) 2.5
Current children cumulated vsize (KiB) 1992

Child status: 20
Real time (s): 2.52953
CPU time (s): 2.52961
CPU user time (s): 2.52861
CPU system time (s): 0.000999
CPU usage (%): 100.003
Max. virtual memory (cumulated for all children) (KiB): 1992

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.52861
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= 30

runsolver used 0.003999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node137 at 2011-04-24 03:55:44
IDJOB=3274808
IDBENCH=87444
IDSOLVER=1676
FILE ID=node137/3274808-1303610143
RUNJOBID= node137-1303610105-21248
PBS_JOBID= 13150605
Free space on /tmp= 71752 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-3274808-1303610143/watcher-3274808-1303610143 -o /tmp/evaluation-result-3274808-1303610143/solver-3274808-1303610143 -C 2400 -W 1300 -M 7680 --output-limit 1,15  HOME/minisat_noassertions HOME/instance-3274808-1303610143.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 8fb426184fc34ee36ee1bb5e07551b2d
RANDOM SEED=836595593

node137.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		: 2666.844
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	: 5333.68
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		: 2666.844
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	: 5332.75
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		: 2666.844
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	: 5332.74
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		: 2666.844
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	: 5332.74
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		: 2666.844
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	: 5332.82
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		: 2666.844
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	: 5332.75
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		: 2666.844
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	: 5332.83
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		: 2666.844
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      24645572 kB
Buffers:       1679220 kB
Cached:        5995708 kB
SwapCached:        112 kB
Active:        1150668 kB
Inactive:      6609020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24645572 kB
SwapTotal:    67111528 kB
SwapFree:     67111412 kB
Dirty:            1564 kB
Writeback:           0 kB
AnonPages:       84552 kB
Mapped:          15764 kB
Slab:           483244 kB
PageTables:       5192 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   269776 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71748 MiB
End job on node137 at 2011-04-24 03:55:46