Trace number 3721130

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 NameAnswerobjective functionCPU timeWall clock time
PB07: minisat+ 1.14OPT18 0.219966 0.220485

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-stein27.opb
MD5SUMad4e33c2a351634ad3ada1c06c0b1126
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark18
Best CPU time to get the best result obtained on this benchmark0.150976
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 18
Optimality of the best value was proved YES
Number of variables27
Total number of constraints118
Number of constraints which are clauses117
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint3
Maximum length of a constraint27
Number of terms in the objective function 27
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 27
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 13
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 40
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data

0.00/0.00	c Parsing PB file...
0.00/0.00	c Converting 118 PB-constraints to clauses...
0.00/0.00	c   -- Unit propagations: (none)
0.00/0.00	c   -- Detecting intervals from adjacent constraints: (none)
0.00/0.00	c   -- Clauses(.)/Splits(s): .....................................................................................................................
0.00/0.00	c ---[   0]---> Sorter-cost:  312     Base:
0.00/0.00	c ==================================[MINISAT+]==================================
0.00/0.00	c | Conflicts | Original         | Learnt                           | Progress |
0.00/0.00	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.00/0.00	c ==============================================================================
0.00/0.00	c |         0 |     430     1090 |     143       0        0     nan |  0.000 % |
0.00/0.00	c ==============================================================================
0.00/0.00	c Found solution: 21
0.00/0.00	o 21
0.00/0.00	c ---[   0]---> Sorter-cost:  146     Base:
0.00/0.00	c ==================================[MINISAT+]==================================
0.00/0.00	c | Conflicts | Original         | Learnt                           | Progress |
0.00/0.00	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.00/0.00	c ==============================================================================
0.00/0.00	c |         0 |     720     1779 |     240       0        0     nan |  0.000 % |
0.00/0.00	c ==============================================================================
0.00/0.00	c Found solution: 18
0.00/0.00	o 18
0.00/0.00	c ---[   0]---> Sorter-cost:    0     Base:
0.00/0.00	c ==================================[MINISAT+]==================================
0.00/0.00	c | Conflicts | Original         | Learnt                           | Progress |
0.00/0.00	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.00/0.00	c ==============================================================================
0.00/0.00	c |         6 |     744     1845 |     248       5       23     4.6 |  0.000 % |
0.00/0.00	c |       106 |     744     1845 |     272     105     1251    11.9 |  4.430 % |
0.00/0.00	c |       256 |     722     1795 |     300     253     2624    10.4 |  6.471 % |
0.00/0.01	c |       481 |     708     1763 |     330     298     2929     9.8 |  7.830 % |
0.00/0.01	c |       819 |     708     1763 |     363     240     2046     8.5 |  7.831 % |
0.00/0.02	c |      1325 |     708     1763 |     399     294     2601     8.8 |  7.830 % |
0.03/0.04	c |      2084 |     708     1763 |     439     278     2325     8.4 |  7.833 % |
0.03/0.06	c |      3223 |     708     1763 |     483     386     2870     7.4 |  7.850 % |
0.03/0.09	c |      4931 |     685     1701 |     531     516     4612     8.9 |  8.845 % |
0.09/0.14	c |      7493 |     634     1576 |     584     347     2714     7.8 | 13.267 % |
0.19/0.22	c |     11337 |     312      774 |     643     115      784     6.8 | 44.262 % |
0.19/0.22	c ==============================================================================
0.19/0.22	c Optimal solution: 18
0.19/0.22	s OPTIMUM FOUND
0.19/0.22	v x1 x2 -x3 x4 x5 x6 x7 x8 x9 x10 -x11 x12 -x13 x14 x15 x16 -x17 -x18 x19 x20 -x21 x22 -x23 x24 x25 -x26 -x27
0.19/0.22	c _______________________________________________________________________________
0.19/0.22	c 
0.19/0.22	c restarts              : 13
0.19/0.22	c conflicts             : 11343          (51567 /sec)
0.19/0.22	c decisions             : 12904          (58664 /sec)
0.19/0.22	c propagations          : 0              (0 /sec)
0.19/0.22	c inspects              : 0              (0 /sec)
0.19/0.22	c CPU time              : 0.219966 s
0.19/0.22	c _______________________________________________________________________________

Verifier Data

OK	18

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-3721130-1338552642/watcher-3721130-1338552642 -o /tmp/evaluation-result-3721130-1338552642/solver-3721130-1338552642 -C 1800 -W 1900 -M 15500 HOME/minisat+ HOME/instance-3721130-1338552642.opb 

running on 4 cores: 0,2,4,6

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): 1900 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.31 0.37 0.12 4/175 10758
/proc/meminfo: memFree=28209832/32873852 swapFree=6856/6856
[pid=10758] ppid=10756 vsize=1264 CPUtime=0 cores=0,2,4,6
/proc/10758/stat : 10758 (minisat+) R 10756 10758 10505 0 -1 4202496 199 0 0 0 0 0 0 0 20 0 1 0 321390129 1294336 156 33554432000 134512640 135395479 4290782304 4290780608 134580499 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0
/proc/10758/statm: 316 156 108 216 0 98 0

[startup+0.0398771 s]
/proc/loadavg: 1.31 0.37 0.12 4/175 10758
/proc/meminfo: memFree=28209832/32873852 swapFree=6856/6856
[pid=10758] ppid=10756 vsize=1264 CPUtime=0.03 cores=0,2,4,6
/proc/10758/stat : 10758 (minisat+) R 10756 10758 10505 0 -1 4202496 211 0 0 0 3 0 0 0 20 0 1 0 321390129 1294336 168 33554432000 134512640 135395479 4290782304 4290780624 134573025 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0
/proc/10758/statm: 316 168 110 216 0 98 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1264

[startup+0.100258 s]
/proc/loadavg: 1.31 0.37 0.12 4/175 10758
/proc/meminfo: memFree=28209832/32873852 swapFree=6856/6856
[pid=10758] ppid=10756 vsize=1264 CPUtime=0.09 cores=0,2,4,6
/proc/10758/stat : 10758 (minisat+) R 10756 10758 10505 0 -1 4202496 215 0 0 0 9 0 0 0 20 0 1 0 321390129 1294336 172 33554432000 134512640 135395479 4290782304 4290780272 134576533 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0
/proc/10758/statm: 316 172 110 216 0 98 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1264

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

[startup+0.200248 s]
/proc/loadavg: 1.31 0.37 0.12 4/175 10758
/proc/meminfo: memFree=28209832/32873852 swapFree=6856/6856
[pid=10758] ppid=10756 vsize=1264 CPUtime=0.19 cores=0,2,4,6
/proc/10758/stat : 10758 (minisat+) R 10756 10758 10505 0 -1 4202496 218 0 0 0 19 0 0 0 20 0 1 0 321390129 1294336 175 33554432000 134512640 135395479 4290782304 4290780656 134581101 0 0 4096 16386 0 0 0 17 4 0 0 0 0 0
/proc/10758/statm: 316 175 110 216 0 98 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1264

Child status: 30
Real time (s): 0.220485
CPU time (s): 0.219966
CPU user time (s): 0.219966
CPU system time (s): 0
CPU usage (%): 99.7646
Max. virtual memory (cumulated for all children) (KiB): 1264

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.219966
system time used= 0
maximum resident set size= 716
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 222
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= 1
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.002999 second system time

The end

Launcher Data

Begin job on node128 at 2012-06-01 14:10:42
IDJOB=3721130
IDBENCH=1861
IDSOLVER=2306
FILE ID=node128/3721130-1338552642
RUNJOBID= node128-1338552592-10521
PBS_JOBID= 14635885
Free space on /tmp= 70508 MiB

SOLVER NAME= minisat+ 1.14
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-stein27.opb
COMMAND LINE= HOME/minisat+ BENCHNAME            
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3721130-1338552642/watcher-3721130-1338552642 -o /tmp/evaluation-result-3721130-1338552642/solver-3721130-1338552642 -C 1800 -W 1900 -M 15500  HOME/minisat+ HOME/instance-3721130-1338552642.opb            

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= ad4e33c2a351634ad3ada1c06c0b1126
RANDOM SEED=1160494739

node128.alineos.net Linux 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011

/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		: 2666.389
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.389
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.389
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5438.56
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.389
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.389
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.389
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.389
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.389
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873852 kB
MemFree:        28210360 kB
Buffers:          500212 kB
Cached:          3252864 kB
SwapCached:          784 kB
Active:          1669812 kB
Inactive:        2112400 kB
Active(anon):      19840 kB
Inactive(anon):    11368 kB
Active(file):    1649972 kB
Inactive(file):  2101032 kB
Unevictable:        6856 kB
Mlocked:            6856 kB
SwapTotal:      67108856 kB
SwapFree:       67106552 kB
Dirty:              4496 kB
Writeback:             0 kB
AnonPages:         34544 kB
Mapped:            14544 kB
Shmem:               200 kB
Slab:             744480 kB
SReclaimable:     186636 kB
SUnreclaim:       557844 kB
KernelStack:        1440 kB
PageTables:         4036 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545780 kB
Committed_AS:     142408 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346360 kB
VmallocChunk:   34341988004 kB
HardwareCorrupted:     0 kB
AnonHugePages:     12288 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7872 kB
DirectMap2M:    33538048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-3721130-1338552642.opb

Free space on /tmp at the end= 70504 MiB
End job on node128 at 2012-06-01 14:10:43