Trace number 3501176

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 4.28035 4.27988

General information on the benchmark

Namegmus/nadel/
edn_25208_4.cnf_0.05000000.unsat.gcnf
MD5SUM011dbfbc248a3a41e228cd4b0f1008bd
Bench CategoryGMUS (GMUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.596908
Satisfiable
(Un)Satisfiability was proved
Number of variables247194
Number of clauses713911
Sum of the clauses size1656466
Maximum clause length3
Minimum clause length1
Number of clauses of size 11640
Number of clauses of size 2481987
Number of clauses of size 3230284
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50
Number of groups3420
Number of clauses in the kernel (group 0)693741
Least number of clauses in a group (except group 0) 1
Greatest number of clauses in a group (except group 0) 8

Solver Data 

0.99/1.02	c [picogcnf] 1.02 seconds: first call to SAT solver returned
0.99/1.02	s UNSATISFIABLE
0.99/1.02	c [picogcnf] 1.02 seconds: <1> reduction to 2 out of 3421 (0%)
4.19/4.25	v 1107 1108 0
4.19/4.25	c [picogcnf] 4.25 seconds: max memory 36.8 MB
4.19/4.27	c [picogcnf] 4.28 seconds: 1 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-3501176-1308041842/watcher-3501176-1308041842 -o /tmp/evaluation-result-3501176-1308041842/solver-3501176-1308041842 -C 1800 -W 1850 -M 7680 picogcnf HOME/instance-3501176-1308041842.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: 1.99 2.63 3.04 4/189 25517
/proc/meminfo: memFree=15647276/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=1476 CPUtime=0 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 294 0 0 0 0 0 0 0 25 0 1 0 896600473 1511424 247 33554432000 134512640 135066516 4289226560 18446744073709551615 134696143 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 369 248 55 136 0 232 0

[startup+0.0325981 s]
/proc/loadavg: 1.99 2.63 3.04 4/189 25517
/proc/meminfo: memFree=15647276/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=4200 CPUtime=0.03 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 974 0 0 0 3 0 0 0 25 0 1 0 896600473 4300800 896 33554432000 134512640 135066516 4289226560 18446744073709551615 134644101 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 1050 897 56 136 0 913 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4200

[startup+0.100626 s]
/proc/loadavg: 1.99 2.63 3.04 4/189 25517
/proc/meminfo: memFree=15647276/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=10920 CPUtime=0.09 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 2448 0 0 0 9 0 0 0 25 0 1 0 896600473 11182080 2370 33554432000 134512640 135066516 4289226560 18446744073709551615 134547429 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 2730 2371 56 136 0 2593 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10920

[startup+0.30058 s]
/proc/loadavg: 1.99 2.63 3.04 4/189 25517
/proc/meminfo: memFree=15647276/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=28168 CPUtime=0.29 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 6780 0 0 0 28 1 0 0 25 0 1 0 896600473 28844032 6702 33554432000 134512640 135066516 4289226560 18446744073709551615 134700638 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 7042 6703 56 136 0 6905 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 28168

[startup+0.700508 s]
/proc/loadavg: 1.99 2.63 3.04 4/189 25517
/proc/meminfo: memFree=15647276/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=42652 CPUtime=0.69 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 9756 0 0 0 68 1 0 0 25 0 1 0 896600473 43675648 9677 33554432000 134512640 135066516 4289226560 18446744073709551615 134572247 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 10663 9677 60 136 0 10526 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 42652

[startup+1.50037 s]
/proc/loadavg: 1.99 2.63 3.04 5/190 25518
/proc/meminfo: memFree=15608620/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=43828 CPUtime=1.49 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 9963 0 0 0 148 1 0 0 25 0 1 0 896600473 44879872 9884 33554432000 134512640 135066516 4289226560 18446744073709551615 134582174 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 10957 9884 77 136 0 10820 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 43828

[startup+3.10106 s]
/proc/loadavg: 2.23 2.67 3.05 5/190 25518
/proc/meminfo: memFree=15605520/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=43828 CPUtime=3.09 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 10039 0 0 0 308 1 0 0 25 0 1 0 896600473 44879872 9960 33554432000 134512640 135066516 4289226560 18446744073709551615 134515327 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 10957 9960 77 136 0 10820 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 43828

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

[startup+3.90094 s]
/proc/loadavg: 2.23 2.67 3.05 5/190 25518
/proc/meminfo: memFree=15605476/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=43828 CPUtime=3.89 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 10071 0 0 0 388 1 0 0 25 0 1 0 896600473 44879872 9992 33554432000 134512640 135066516 4289226560 18446744073709551615 134581166 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 10957 9992 77 136 0 10820 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 43828

[startup+4.1009 s]
/proc/loadavg: 2.23 2.67 3.05 5/190 25518
/proc/meminfo: memFree=15605476/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=43828 CPUtime=4.09 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 10073 0 0 0 408 1 0 0 25 0 1 0 896600473 44879872 9994 33554432000 134512640 135066516 4289226560 18446744073709551615 134518911 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 10957 9994 77 136 0 10820 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 43828

[startup+4.20088 s]
/proc/loadavg: 2.23 2.67 3.05 5/190 25518
/proc/meminfo: memFree=15605476/32951124 swapFree=67050916/67111528
[pid=25517] ppid=25515 vsize=43828 CPUtime=4.19 cores=4,6
/proc/25517/stat : 25517 (picogcnf) R 25515 25517 14728 0 -1 4202496 10073 0 0 0 418 1 0 0 25 0 1 0 896600473 44879872 9994 33554432000 134512640 135066516 4289226560 18446744073709551615 134581153 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25517/statm: 10957 9994 77 136 0 10820 0
Current children cumulated CPU time (s) 4.19
Current children cumulated vsize (KiB) 43828

Child status: 20
Real time (s): 4.27988
CPU time (s): 4.28035
CPU user time (s): 4.25835
CPU system time (s): 0.021996
CPU usage (%): 100.011
Max. virtual memory (cumulated for all children) (KiB): 43828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.25835
system time used= 0.021996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10075
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= 14

runsolver used 0.008998 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node146 at 2011-06-14 10:57:22
IDJOB=3501176
IDBENCH=89918
IDSOLVER=1999
FILE ID=node146/3501176-1308041842
RUNJOBID= node146-1308041831-25390
PBS_JOBID= 13563890
Free space on /tmp= 6320 MiB

SOLVER NAME= PicoGCNF 941
BENCH NAME= SAT11/gmus/nadel/edn_25208_4.cnf_0.05000000.unsat.gcnf
COMMAND LINE= picogcnf BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3501176-1308041842/watcher-3501176-1308041842 -o /tmp/evaluation-result-3501176-1308041842/solver-3501176-1308041842 -C 1800 -W 1850 -M 7680  picogcnf HOME/instance-3501176-1308041842.gcnf

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

MD5SUM BENCH= 011dbfbc248a3a41e228cd4b0f1008bd
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:      15647696 kB
Buffers:        168052 kB
Cached:       15984812 kB
SwapCached:      13448 kB
Active:        1436280 kB
Inactive:     15264020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15647696 kB
SwapTotal:    67111528 kB
SwapFree:     67050916 kB
Dirty:          239792 kB
Writeback:           0 kB
AnonPages:      546048 kB
Mapped:          10396 kB
Slab:           536196 kB
PageTables:       6448 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   845996 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= 6320 MiB
End job on node146 at 2011-06-14 10:57:26