Trace number 2673964

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
PBPASSolver 2010-06-13? (MO) 23.39 23.4145

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-mkc1.opb
MD5SUMc469eec4209d8404cb0293cb27bb013d
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark1800.43
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of variables27743
Total number of constraints5584
Number of constraints which are clauses712
Number of constraints which are cardinality constraints (but not clauses)24
Number of constraints which are nor clauses,nor cardinality constraints4848
Minimum length of a constraint2
Maximum length of a constraint25072
Number of terms in the objective function 25306
Biggest coefficient in the objective function 20480000
Number of bits for the biggest coefficient in the objective function 25
Sum of the numbers in the objective function 56454927307
Number of bits of the sum of numbers in the objective function 36
Biggest number in a constraint 536870912000
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 1129539816832
Number of bits of the biggest sum of numbers41
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

23.39/23.40	c 27743 5584 0 0 0 0 0 0

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2673964-1276799246/watcher-2673964-1276799246 -o /tmp/evaluation-result-2673964-1276799246/solver-2673964-1276799246 -C 1800 -W 2000 -M 1800 run HOME/instance-2673964-1276799246.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.98 0.99 3/105 22119
/proc/meminfo: memFree=1886748/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0

[startup+0.0145779 s]
/proc/loadavg: 0.99 0.98 0.99 3/105 22119
/proc/meminfo: memFree=1886748/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101586 s]
/proc/loadavg: 0.99 0.98 0.99 3/105 22119
/proc/meminfo: memFree=1886748/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.301607 s]
/proc/loadavg: 0.99 0.98 0.99 3/105 22119
/proc/meminfo: memFree=1886748/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.701649 s]
/proc/loadavg: 0.99 0.98 0.99 3/105 22119
/proc/meminfo: memFree=1886748/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50173 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22122
/proc/meminfo: memFree=1881152/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0
[pid=22121] ppid=22119 vsize=226756 CPUtime=1.48
/proc/22121/stat : 22121 (PBPASSolver) R 22119 22119 22064 0 -1 4202496 56169 0 0 0 53 95 0 0 25 0 1 0 21218678 232198144 56107 1992294400 134512640 134902295 4292717456 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/22121/statm: 56689 56113 253 96 0 55901 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 235456

[startup+3.1019 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22122
/proc/meminfo: memFree=1544120/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0
[pid=22121] ppid=22119 vsize=508132 CPUtime=3.09
/proc/22121/stat : 22121 (PBPASSolver) R 22119 22119 22064 0 -1 4202496 127777 0 0 0 131 178 0 0 25 0 1 0 21218678 520327168 126459 1992294400 134512640 134902295 4292717456 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/22121/statm: 127033 126459 256 96 0 126245 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 516832

[startup+6.30124 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22122
/proc/meminfo: memFree=1077632/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0
[pid=22121] ppid=22119 vsize=916036 CPUtime=6.28
/proc/22121/stat : 22121 (PBPASSolver) R 22119 22119 22064 0 -1 4202496 231231 0 0 0 298 330 0 0 25 0 1 0 21218678 938020864 228409 1992294400 134512640 134902295 4292717456 18446744073709551615 134586919 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/22121/statm: 229009 228417 256 96 0 228221 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 924736

[startup+12.7009 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22124
/proc/meminfo: memFree=347272/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0
[pid=22121] ppid=22119 vsize=1596100 CPUtime=12.69
/proc/22121/stat : 22121 (PBPASSolver) R 22119 22119 22064 0 -1 4202496 401563 0 0 0 713 556 0 0 25 0 1 0 21218678 1634406400 398429 1992294400 134512640 134902295 4292717456 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/22121/statm: 399025 398429 256 96 0 398237 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1604800



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+23.4011 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22124
/proc/meminfo: memFree=48928/2059040 swapFree=4159788/4192956
[pid=22119] ppid=22117 vsize=8700 CPUtime=0
/proc/22119/stat : 22119 (run) S 22117 22119 22064 0 -1 4202496 389 134 0 0 0 0 0 0 25 0 1 0 21218677 8908800 250 1992294400 4194304 4922060 140733227242176 18446744073709551615 249773530245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22119/statm: 2175 250 211 178 0 68 0
[pid=22121] ppid=22119 vsize=1837636 CPUtime=23.39
/proc/22121/stat : 22121 (PBPASSolver) R 22119 22119 22064 0 -1 4202496 462085 0 0 0 1754 585 0 0 25 0 1 0 21218678 1881739264 458807 1992294400 134512640 134902295 4292717456 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/22121/statm: 459409 458807 259 96 0 458621 0
Current children cumulated CPU time (s) 23.39
Current children cumulated vsize (KiB) 1846336

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 22119 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=0
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=2999
# CPU time returned by wait4() is 0.002999
# while last known CPU time is 23.39
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 23.4145
CPU time (s): 23.39
CPU user time (s): 17.54
CPU system time (s): 5.85
CPU usage (%): 99.8956
Max. virtual memory (cumulated for all children) (KiB): 1846336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 523
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= 3
involuntary context switches= 3

runsolver used 0.045993 second user time and 0.119981 second system time

The end

Launcher Data 

Begin job on node081 at 2010-06-17 20:27:26
IDJOB=2673964
IDBENCH=2320
IDSOLVER=1174
FILE ID=node081/2673964-1276799246
PBS_JOBID= 11176663
Free space on /tmp= 121808 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-mkc1.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2673964-1276799246/watcher-2673964-1276799246 -o /tmp/evaluation-result-2673964-1276799246/solver-2673964-1276799246 -C 1800 -W 2000 -M 1800  run HOME/instance-2673964-1276799246.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c469eec4209d8404cb0293cb27bb013d
RANDOM SEED=253205474

node081.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	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.212
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.42
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		: 3000.212
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1887020 kB
Buffers:          7372 kB
Cached:          73072 kB
SwapCached:       1752 kB
Active:          57708 kB
Inactive:        50876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1887020 kB
SwapTotal:     4192956 kB
SwapFree:      4159788 kB
Dirty:            2668 kB
Writeback:           0 kB
AnonPages:       26404 kB
Mapped:          13992 kB
Slab:            41704 kB
PageTables:       3948 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181660 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264964 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 121804 MiB
End job on node081 at 2010-06-17 20:27:51