Trace number 350761

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, and are wall clock time (not CPU 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
glpPB 0.2? (exit code) 1.49177 1.4964

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-reduced-mps-v2-20-10-neos20.opb
MD5SUM548627fc5af0dd4663b3515778a6a609
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-55
Best CPU time to get the best result obtained on this benchmark1800.07
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -56
Optimality of the best value was proved NO
Number of variables8411
Total number of constraints2456
Number of constraints which are clauses412
Number of constraints which are cardinality constraints (but not clauses)426
Number of constraints which are nor clauses,nor cardinality constraints1618
Minimum length of a constraint2
Maximum length of a constraint270
Number of terms in the objective function 150
Biggest coefficient in the objective function 52429
Number of bits for the biggest coefficient in the objective function 16
Sum of the numbers in the objective function 524390
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 523753
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 524475
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c glpPB 0.2 (July 2006)
0.00/0.00	c An Application of GLPK 4.10 for PB Constraints
0.00/0.00	c Done @ University of Michigan, Ann Arbor, MI
0.00/0.00	c  by Hossein Sheini
1.38/1.49	c starting to Solve
1.38/1.49	Assertion failed: x >= lb; file glpmip2.c; line 230

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/350761-1176547956/instance-350761-1176547956.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node10/watcher-350761-1176547956 -o ROOT/results/node10/solver-350761-1176547956 -C 1800 -W 3600 -M 1800 --output-limit 1,15 glpPBv3 /tmp/evaluation/350761-1176547956/instance-350761-1176547956.opb 

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): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 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: 1.00 1.00 1.00 3/77 8182
/proc/meminfo: memFree=1798176/2055920 swapFree=4166016/4192956
[pid=8182] ppid=8180 vsize=2648 CPUtime=0
/proc/8182/stat : 8182 (glpPBv3) R 8180 8182 6975 0 -1 0 267 0 0 0 0 0 0 0 18 0 1 0 130833103 2711552 237 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 9340539 0 0 4096 0 0 0 0 17 1 0 0
/proc/8182/statm: 662 238 199 40 0 77 0

[startup+0.0528019 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 8182
/proc/meminfo: memFree=1798176/2055920 swapFree=4166016/4192956
[pid=8182] ppid=8180 vsize=3316 CPUtime=0.04
/proc/8182/stat : 8182 (glpPBv3) R 8180 8182 6975 0 -1 0 433 0 0 0 4 0 0 0 18 0 1 0 130833103 3395584 403 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 9303701 0 0 4096 0 0 0 0 17 1 0 0
/proc/8182/statm: 829 403 199 40 0 244 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3316

[startup+0.102813 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 8182
/proc/meminfo: memFree=1798176/2055920 swapFree=4166016/4192956
[pid=8182] ppid=8180 vsize=3848 CPUtime=0.09
/proc/8182/stat : 8182 (glpPBv3) R 8180 8182 6975 0 -1 0 585 0 0 0 9 0 0 0 18 0 1 0 130833103 3940352 555 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 9073468 0 0 4096 0 0 0 0 17 1 0 0
/proc/8182/statm: 962 555 199 40 0 377 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3848

[startup+0.301857 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 8182
/proc/meminfo: memFree=1798176/2055920 swapFree=4166016/4192956
[pid=8182] ppid=8180 vsize=8432 CPUtime=0.29
/proc/8182/stat : 8182 (glpPBv3) R 8180 8182 6975 0 -1 0 1747 0 0 0 29 0 0 0 19 0 1 0 130833103 8634368 1715 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134643502 0 0 4096 0 0 0 0 17 1 0 0
/proc/8182/statm: 2108 1715 221 40 0 1523 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8432

[startup+0.701943 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 8182
/proc/meminfo: memFree=1798176/2055920 swapFree=4166016/4192956
[pid=8182] ppid=8180 vsize=8084 CPUtime=0.69
/proc/8182/stat : 8182 (glpPBv3) R 8180 8182 6975 0 -1 0 1886 0 0 0 69 0 0 0 22 0 1 0 130833103 8278016 1628 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134587969 0 0 4096 0 0 0 0 17 1 0 0
/proc/8182/statm: 2021 1628 221 40 0 1436 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8084

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

[startup+1.10603 s]
/proc/loadavg: 1.00 1.00 1.00 3/78 8183
/proc/meminfo: memFree=1792280/2055920 swapFree=4166016/4192956
[pid=8182] ppid=8180 vsize=10220 CPUtime=1.09
/proc/8182/stat : 8182 (glpPBv3) R 8180 8182 6975 0 -1 0 2906 0 0 0 109 0 0 0 25 0 1 0 130833103 10465280 2179 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134626276 0 0 4096 0 0 0 0 17 1 0 0
/proc/8182/statm: 2555 2179 227 40 0 1970 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 10220

[startup+1.30107 s]
/proc/loadavg: 1.00 1.00 1.00 3/78 8183
/proc/meminfo: memFree=1792280/2055920 swapFree=4166016/4192956
[pid=8182] ppid=8180 vsize=10220 CPUtime=1.28
/proc/8182/stat : 8182 (glpPBv3) R 8180 8182 6975 0 -1 0 2906 0 0 0 128 0 0 0 25 0 1 0 130833103 10465280 2179 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134542138 0 0 4096 0 0 0 0 17 1 0 0
/proc/8182/statm: 2555 2179 227 40 0 1970 0
Current children cumulated CPU time (s) 1.28
Current children cumulated vsize (KiB) 10220

[startup+1.40109 s]
/proc/loadavg: 1.00 1.00 1.00 3/78 8183
/proc/meminfo: memFree=1792280/2055920 swapFree=4166016/4192956
[pid=8182] ppid=8180 vsize=10220 CPUtime=1.38
/proc/8182/stat : 8182 (glpPBv3) R 8180 8182 6975 0 -1 0 2906 0 0 0 138 0 0 0 25 0 1 0 130833103 10465280 2179 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134542117 0 0 4096 0 0 0 0 17 1 0 0
/proc/8182/statm: 2555 2179 227 40 0 1970 0
Current children cumulated CPU time (s) 1.38
Current children cumulated vsize (KiB) 10220

Child status: 1
Real time (s): 1.4964
CPU time (s): 1.49177
CPU user time (s): 1.47978
CPU system time (s): 0.011998
CPU usage (%): 99.6909
Max. virtual memory (cumulated for all children) (KiB): 10220

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.47978
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3147
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= 12
involuntary context switches= 3

runsolver used 0.003999 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Sat Apr 14 10:52:36 UTC 2007

IDJOB= 350761
IDBENCH= 1585
IDSOLVER= 166
FILE ID= node10/350761-1176547956

PBS_JOBID= 4556743

Free space on /tmp= 66558 MiB

SOLVER NAME= glpPB 0.2
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-reduced-mps-v2-20-10-neos20.opb
COMMAND LINE= glpPBv3 /tmp/evaluation/350761-1176547956/instance-350761-1176547956.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node10/convwatcher-350761-1176547956 -o ROOT/results/node10/conversion-350761-1176547956 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/350761-1176547956/instance-350761-1176547956.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-350761-1176547956 -o ROOT/results/node10/solver-350761-1176547956 -C 1800 -W 3600 -M 1800 --output-limit 1,15  glpPBv3 /tmp/evaluation/350761-1176547956/instance-350761-1176547956.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  548627fc5af0dd4663b3515778a6a609

RANDOM SEED= 538629982

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1798656 kB
Buffers:         27620 kB
Cached:         143664 kB
SwapCached:       2864 kB
Active:          64048 kB
Inactive:       143332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1798656 kB
SwapTotal:     4192956 kB
SwapFree:      4166016 kB
Dirty:            2736 kB
Writeback:           0 kB
Mapped:          43860 kB
Slab:            35532 kB
Committed_AS:  2207192 kB
PageTables:       1724 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66558 MiB

End job on node10 on Sat Apr 14 10:52:37 UTC 2007