Trace number 3501190

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 1.44878 1.45126

General information on the benchmark

Namegmus/nadel/
edn_20403_16.cnf_0.29000000.unsat.gcnf
MD5SUMb23409a85479896f827aa127538bdef8
Bench CategoryGMUS (GMUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.532918
Satisfiable
(Un)Satisfiability was proved
Number of variables135198
Number of clauses387583
Sum of the clauses size897780
Maximum clause length3
Minimum clause length1
Number of clauses of size 1400
Number of clauses of size 2264169
Number of clauses of size 3123014
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50
Number of groups638
Number of clauses in the kernel (group 0)371916
Least number of clauses in a group (except group 0) 1
Greatest number of clauses in a group (except group 0) 28

Solver Data 

0.58/0.61	c [picogcnf] 0.61 seconds: first call to SAT solver returned
0.58/0.61	s UNSATISFIABLE
0.58/0.61	c [picogcnf] 0.61 seconds: <1> reduction to 42 out of 638 (7%)
1.38/1.41	c [picogcnf] 1.42 seconds: <2> reduction to 37 out of 638 (6%)
1.38/1.42	c [picogcnf] 1.42 seconds: <3> reduction to 36 out of 638 (6%)
1.38/1.42	c [picogcnf] 1.42 seconds: <4> reduction to 13 out of 638 (2%)
1.38/1.43	c [picogcnf] 1.43 seconds: <5> reduction to 10 out of 638 (2%)
1.38/1.43	c [picogcnf] 1.43 seconds: <6> reduction to 9 out of 638 (1%)
1.38/1.44	c [picogcnf] 1.44 seconds: <7> reduction to 3 out of 638 (0%)
1.38/1.44	c [picogcnf] 1.44 seconds: <8> reduction to 2 out of 638 (0%)
1.38/1.44	v 10 11 0
1.38/1.44	c [picogcnf] 1.44 seconds: max memory 20.2 MB
1.38/1.45	c [picogcnf] 1.45 seconds: 8 reductions

Verifier Data 

OK	2

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-3501190-1308041905/watcher-3501190-1308041905 -o /tmp/evaluation-result-3501190-1308041905/solver-3501190-1308041905 -C 1800 -W 1850 -M 7680 picogcnf HOME/instance-3501190-1308041905.gcnf 

running on 2 cores: 4,6

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: 3.63 2.99 3.13 6/189 26000
/proc/meminfo: memFree=15505948/32951124 swapFree=67050916/67111528
[pid=26000] ppid=25998 vsize=1200 CPUtime=0 cores=4,6
/proc/26000/stat : 26000 (picogcnf) R 25998 26000 14728 0 -1 4202496 234 0 0 0 0 0 0 0 25 0 1 0 896606795 1228800 187 33554432000 134512640 135066516 4286929648 18446744073709551615 134700638 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26000/statm: 300 187 55 136 0 163 0

[startup+0.0598679 s]
/proc/loadavg: 3.63 2.99 3.13 6/189 26000
/proc/meminfo: memFree=15505948/32951124 swapFree=67050916/67111528
[pid=26000] ppid=25998 vsize=6412 CPUtime=0.05 cores=4,6
/proc/26000/stat : 26000 (picogcnf) R 25998 26000 14728 0 -1 4202496 1462 0 0 0 5 0 0 0 25 0 1 0 896606795 6565888 1415 33554432000 134512640 135066516 4286929648 18446744073709551615 134700638 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26000/statm: 1603 1416 56 136 0 1466 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6412

[startup+0.100848 s]
/proc/loadavg: 3.63 2.99 3.13 6/189 26000
/proc/meminfo: memFree=15505948/32951124 swapFree=67050916/67111528
[pid=26000] ppid=25998 vsize=10184 CPUtime=0.09 cores=4,6
/proc/26000/stat : 26000 (picogcnf) R 25998 26000 14728 0 -1 4202496 2372 0 0 0 9 0 0 0 25 0 1 0 896606795 10428416 2325 33554432000 134512640 135066516 4286929648 18446744073709551615 134680827 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26000/statm: 2546 2326 56 136 0 2409 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10184

[startup+0.300824 s]
/proc/loadavg: 3.63 2.99 3.13 6/189 26000
/proc/meminfo: memFree=15505948/32951124 swapFree=67050916/67111528
[pid=26000] ppid=25998 vsize=23996 CPUtime=0.28 cores=4,6
/proc/26000/stat : 26000 (picogcnf) R 25998 26000 14728 0 -1 4202496 5486 0 0 0 28 0 0 0 25 0 1 0 896606795 24571904 5438 33554432000 134512640 135066516 4286929648 18446744073709551615 134534046 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26000/statm: 5999 5438 60 136 0 5862 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 23996

[startup+0.700738 s]
/proc/loadavg: 3.63 2.99 3.13 6/189 26000
/proc/meminfo: memFree=15505948/32951124 swapFree=67050916/67111528
[pid=26000] ppid=25998 vsize=24128 CPUtime=0.68 cores=4,6
/proc/26000/stat : 26000 (picogcnf) R 25998 26000 14728 0 -1 4202496 5545 0 0 0 68 0 0 0 25 0 1 0 896606795 24707072 5497 33554432000 134512640 135066516 4286929648 18446744073709551615 134581049 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26000/statm: 6032 5497 77 136 0 5895 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 24128

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

[startup+1.10668 s]
/proc/loadavg: 3.63 2.99 3.13 5/190 26001
/proc/meminfo: memFree=15483768/32951124 swapFree=67050916/67111528
[pid=26000] ppid=25998 vsize=24384 CPUtime=1.09 cores=4,6
/proc/26000/stat : 26000 (picogcnf) R 25998 26000 14728 0 -1 4202496 5608 0 0 0 109 0 0 0 25 0 1 0 896606795 24969216 5560 33554432000 134512640 135066516 4286929648 18446744073709551615 134535428 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26000/statm: 6096 5560 77 136 0 5959 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 24384

[startup+1.30066 s]
/proc/loadavg: 3.63 2.99 3.13 5/190 26001
/proc/meminfo: memFree=15483768/32951124 swapFree=67050916/67111528
[pid=26000] ppid=25998 vsize=24896 CPUtime=1.28 cores=4,6
/proc/26000/stat : 26000 (picogcnf) R 25998 26000 14728 0 -1 4202496 5619 0 0 0 128 0 0 0 25 0 1 0 896606795 25493504 5571 33554432000 134512640 135066516 4286929648 18446744073709551615 134515372 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26000/statm: 6224 5571 77 136 0 6087 0
Current children cumulated CPU time (s) 1.28
Current children cumulated vsize (KiB) 24896

[startup+1.40064 s]
/proc/loadavg: 3.63 2.99 3.13 5/190 26001
/proc/meminfo: memFree=15483768/32951124 swapFree=67050916/67111528
[pid=26000] ppid=25998 vsize=24896 CPUtime=1.38 cores=4,6
/proc/26000/stat : 26000 (picogcnf) R 25998 26000 14728 0 -1 4202496 5619 0 0 0 138 0 0 0 25 0 1 0 896606795 25493504 5571 33554432000 134512640 135066516 4286929648 18446744073709551615 134518907 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/26000/statm: 6224 5571 77 136 0 6087 0
Current children cumulated CPU time (s) 1.38
Current children cumulated vsize (KiB) 24896

Child status: 20
Real time (s): 1.45126
CPU time (s): 1.44878
CPU user time (s): 1.43978
CPU system time (s): 0.008998
CPU usage (%): 99.8291
Max. virtual memory (cumulated for all children) (KiB): 24896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.43978
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5623
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= 3

runsolver used 0.005999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node146 at 2011-06-14 10:58:25
IDJOB=3501190
IDBENCH=89931
IDSOLVER=1999
FILE ID=node146/3501190-1308041905
RUNJOBID= node146-1308041831-25390
PBS_JOBID= 13563890
Free space on /tmp= 6388 MiB

SOLVER NAME= PicoGCNF 941
BENCH NAME= SAT11/gmus/nadel/edn_20403_16.cnf_0.29000000.unsat.gcnf
COMMAND LINE= picogcnf BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3501190-1308041905/watcher-3501190-1308041905 -o /tmp/evaluation-result-3501190-1308041905/solver-3501190-1308041905 -C 1800 -W 1850 -M 7680  picogcnf HOME/instance-3501190-1308041905.gcnf

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

MD5SUM BENCH= b23409a85479896f827aa127538bdef8
RANDOM SEED=1323666085

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:      15506120 kB
Buffers:        168664 kB
Cached:       16264748 kB
SwapCached:      13448 kB
Active:        1332620 kB
Inactive:     15510476 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15506120 kB
SwapTotal:    67111528 kB
SwapFree:     67050916 kB
Dirty:          164680 kB
Writeback:           0 kB
AnonPages:      408112 kB
Mapped:          10076 kB
Slab:           535780 kB
PageTables:       6288 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   659592 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= 6456 MiB
End job on node146 at 2011-06-14 10:58:27