Trace number 3501182

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
PicoGCNF 941UNSAT 6.65099 6.6589

General information on the benchmark

Namegmus/nadel/
edn_2948_6.cnf_0.12000000.unsat.gcnf
MD5SUM903ff9cc0ddf05834988fcfcc7fd545e
Bench CategoryGMUS (GMUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.937857
Satisfiable
(Un)Satisfiability was proved
Number of variables406538
Number of clauses1179043
Sum of the clauses size2736694
Maximum clause length3
Minimum clause length1
Number of clauses of size 11648
Number of clauses of size 2797139
Number of clauses of size 3380256
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50
Number of groups3503
Number of clauses in the kernel (group 0)1144469
Least number of clauses in a group (except group 0) 1
Greatest number of clauses in a group (except group 0) 12

Solver Data 

1.69/1.72	c [picogcnf] 1.72 seconds: first call to SAT solver returned
1.69/1.72	s UNSATISFIABLE
1.69/1.72	c [picogcnf] 1.72 seconds: <1> reduction to 1 out of 3503 (0%)
6.59/6.63	v 1558 0
6.59/6.63	c [picogcnf] 6.63 seconds: max memory 61.2 MB
6.59/6.65	c [picogcnf] 6.65 seconds: 1 reductions

Verifier Data 

OK	1

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

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-3501182-1308041865/watcher-3501182-1308041865 -o /tmp/evaluation-result-3501182-1308041865/solver-3501182-1308041865 -C 1800 -W 1850 -M 7680 picogcnf HOME/instance-3501182-1308041865.gcnf 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1850 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.73 2.75 3.06 4/185 25730
/proc/meminfo: memFree=15722920/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=11804 CPUtime=0 cores=1,3
/proc/25730/stat : 25730 (runsolver) S 25728 25730 14728 0 -1 4202560 41 0 0 0 0 0 0 0 25 0 1 0 896602815 12087296 51 33554432000 4194304 5436572 140737062149664 18446744073709551615 4883175 0 2147483391 4096 24578 18446744071699960631 0 0 17 3 0 0 0
/proc/25730/statm: 2951 51 31 304 0 2643 0

[startup+0.0591851 s]
/proc/loadavg: 2.73 2.75 3.06 4/185 25730
/proc/meminfo: memFree=15722920/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=6080 CPUtime=0.05 cores=1,3
/proc/25730/stat : 25730 (picogcnf) R 25728 25730 14728 0 -1 4202496 1314 0 0 0 5 0 0 0 25 0 1 0 896602815 6225920 1267 33554432000 134512640 135066516 4293972112 18446744073709551615 134700638 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25730/statm: 1520 1268 56 136 0 1383 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6080

[startup+0.10118 s]
/proc/loadavg: 2.73 2.75 3.06 4/185 25730
/proc/meminfo: memFree=15722920/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=9928 CPUtime=0.09 cores=1,3
/proc/25730/stat : 25730 (picogcnf) R 25728 25730 14728 0 -1 4202496 2283 0 0 0 9 0 0 0 25 0 1 0 896602815 10166272 2236 33554432000 134512640 135066516 4293972112 18446744073709551615 134680827 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25730/statm: 2482 2237 56 136 0 2345 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9928

[startup+0.301139 s]
/proc/loadavg: 2.73 2.75 3.06 4/185 25730
/proc/meminfo: memFree=15722920/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=27784 CPUtime=0.29 cores=1,3
/proc/25730/stat : 25730 (picogcnf) R 25728 25730 14728 0 -1 4202496 6593 0 0 0 28 1 0 0 25 0 1 0 896602815 28450816 6546 33554432000 134512640 135066516 4293972112 18446744073709551615 134700638 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25730/statm: 6946 6547 56 136 0 6809 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 27784

[startup+0.701049 s]
/proc/loadavg: 2.73 2.75 3.06 4/185 25730
/proc/meminfo: memFree=15722920/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=67344 CPUtime=0.68 cores=1,3
/proc/25730/stat : 25730 (picogcnf) R 25728 25730 14728 0 -1 4202496 14773 0 0 0 65 3 0 0 25 0 1 0 896602815 68960256 14726 33554432000 134512640 135066516 4293972112 18446744073709551615 134680827 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25730/statm: 16836 14727 56 136 0 16699 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 67344

[startup+1.50091 s]
/proc/loadavg: 2.73 2.75 3.06 5/190 25741
/proc/meminfo: memFree=15539996/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=70988 CPUtime=1.48 cores=1,3
/proc/25730/stat : 25730 (picogcnf) R 25728 25730 14728 0 -1 4202496 16059 0 0 0 145 3 0 0 25 0 1 0 896602815 72691712 16011 33554432000 134512640 135066516 4293972112 18446744073709551615 134567081 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25730/statm: 17747 16011 60 136 0 17610 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 70988

[startup+3.10062 s]
/proc/loadavg: 2.73 2.75 3.06 5/190 25741
/proc/meminfo: memFree=15481468/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=71888 CPUtime=3.09 cores=1,3
/proc/25730/stat : 25730 (picogcnf) R 25728 25730 14728 0 -1 4202496 16273 0 0 0 304 5 0 0 25 0 1 0 896602815 73613312 16225 33554432000 134512640 135066516 4293972112 18446744073709551615 134555389 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25730/statm: 17972 16225 77 136 0 17835 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 71888

[startup+6.30105 s]
/proc/loadavg: 2.91 2.79 3.08 5/190 25778
/proc/meminfo: memFree=15537672/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=72912 CPUtime=6.29 cores=1,3
/proc/25730/stat : 25730 (picogcnf) R 25728 25730 14728 0 -1 4202496 16446 0 0 0 624 5 0 0 25 0 1 0 896602815 74661888 16398 33554432000 134512640 135066516 4293972112 18446744073709551615 134581153 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25730/statm: 18228 16398 77 136 0 18091 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 72912

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

[startup+6.50101 s]
/proc/loadavg: 2.91 2.79 3.08 5/190 25778
/proc/meminfo: memFree=15536432/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=72912 CPUtime=6.49 cores=1,3
/proc/25730/stat : 25730 (picogcnf) R 25728 25730 14728 0 -1 4202496 16457 0 0 0 644 5 0 0 25 0 1 0 896602815 74661888 16409 33554432000 134512640 135066516 4293972112 18446744073709551615 134581171 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25730/statm: 18228 16409 77 136 0 18091 0
Current children cumulated CPU time (s) 6.49
Current children cumulated vsize (KiB) 72912

[startup+6.607 s]
/proc/loadavg: 2.91 2.79 3.08 5/190 25778
/proc/meminfo: memFree=15536432/32951124 swapFree=67050916/67111528
[pid=25730] ppid=25728 vsize=72912 CPUtime=6.59 cores=1,3
/proc/25730/stat : 25730 (picogcnf) R 25728 25730 14728 0 -1 4202496 16459 0 0 0 654 5 0 0 25 0 1 0 896602815 74661888 16411 33554432000 134512640 135066516 4293972112 18446744073709551615 134545746 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25730/statm: 18228 16411 77 136 0 18091 0
Current children cumulated CPU time (s) 6.59
Current children cumulated vsize (KiB) 72912

Child status: 20
Real time (s): 6.6589
CPU time (s): 6.65099
CPU user time (s): 6.594
CPU system time (s): 0.056991
CPU usage (%): 99.8812
Max. virtual memory (cumulated for all children) (KiB): 72912

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.594
system time used= 0.056991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16461
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= 7

runsolver used 0.013997 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node146 at 2011-06-14 10:57:45
IDJOB=3501182
IDBENCH=89923
IDSOLVER=1999
FILE ID=node146/3501182-1308041865
RUNJOBID= node146-1308041831-25391
PBS_JOBID= 13563890
Free space on /tmp= 6352 MiB

SOLVER NAME= PicoGCNF 941
BENCH NAME= SAT11/gmus/nadel/edn_2948_6.cnf_0.12000000.unsat.gcnf
COMMAND LINE= picogcnf BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3501182-1308041865/watcher-3501182-1308041865 -o /tmp/evaluation-result-3501182-1308041865/solver-3501182-1308041865 -C 1800 -W 1850 -M 7680  picogcnf HOME/instance-3501182-1308041865.gcnf

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 903ff9cc0ddf05834988fcfcc7fd545e
RANDOM SEED=2044278261

node146.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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.86
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		: 2666.830
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	: 5332.75
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      15727700 kB
Buffers:        168280 kB
Cached:       16009124 kB
SwapCached:      13448 kB
Active:        1401676 kB
Inactive:     15218748 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15727700 kB
SwapTotal:    67111528 kB
SwapFree:     67050916 kB
Dirty:          207912 kB
Writeback:           0 kB
AnonPages:      441312 kB
Mapped:           9688 kB
Slab:           536240 kB
PageTables:       5632 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   701492 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= 6336 MiB
End job on node146 at 2011-06-14 10:57:52