Trace number 2669323

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
PB/CT 0.1? (MO) 40.7768 42.7924

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-d2q06c.opb
MD5SUM7b03b498d913dd1b306399e53ada7e6f
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark11.6222
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables155010
Total number of constraints2171
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints2171
Minimum length of a constraint30
Maximum length of a constraint3270
Number of terms in the objective function 89670
Biggest coefficient in the objective function 36281708852543488
Number of bits for the biggest coefficient in the objective function 56
Sum of the numbers in the objective function 17434532498669331507
Number of bits of the sum of numbers in the objective function 64
Biggest number in a constraint 1246989811751845888
Number of bits of the biggest number in a constraint 61
Biggest sum of numbers in a constraint 17434532498669331507
Number of bits of the biggest sum of numbers64
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
4.59/4.64	c constraints 2171/0 clauses 0/0 units 16232
4.59/4.64	c vars 155010
10.59/10.60	c objective 82726 + -396159270940753028

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-2669323-1276551999/watcher-2669323-1276551999 -o /tmp/evaluation-result-2669323-1276551999/solver-2669323-1276551999 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669323-1276551999.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: 1.16 1.06 1.02 3/106 31680
/proc/meminfo: memFree=1797656/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=2488 CPUtime=0
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 302 0 0 0 0 0 0 0 20 0 1 0 30801420 2547712 225 1992294400 134512640 136485738 4293043648 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31680/statm: 622 225 151 482 0 138 0

[startup+0.0310371 s]
/proc/loadavg: 1.16 1.06 1.02 3/106 31680
/proc/meminfo: memFree=1797656/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=3076 CPUtime=0.02
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 470 0 0 0 2 0 0 0 20 0 1 0 30801420 3149824 360 1992294400 134512640 136485738 4293043648 18446744073709551615 135172032 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31680/statm: 769 360 151 482 0 285 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3076

[startup+0.101049 s]
/proc/loadavg: 1.16 1.06 1.02 3/106 31680
/proc/meminfo: memFree=1797656/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=5512 CPUtime=0.09
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 1130 0 0 0 9 0 0 0 20 0 1 0 30801420 5644288 906 1992294400 134512640 136485738 4293043648 18446744073709551615 135844711 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31680/statm: 1378 906 151 482 0 894 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5512

[startup+0.301083 s]
/proc/loadavg: 1.16 1.06 1.02 3/106 31680
/proc/meminfo: memFree=1797656/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=9564 CPUtime=0.29
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 2603 0 0 0 29 0 0 0 20 0 1 0 30801420 9793536 1703 1992294400 134512640 136485738 4293043648 18446744073709551615 135856930 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31680/statm: 2391 1703 152 482 0 1907 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9564

[startup+0.701152 s]
/proc/loadavg: 1.16 1.06 1.02 3/106 31680
/proc/meminfo: memFree=1797656/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=14028 CPUtime=0.69
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 3644 0 0 0 68 1 0 0 21 0 1 0 30801420 14364672 2744 1992294400 134512640 136485738 4293043648 18446744073709551615 134540955 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31680/statm: 3507 2744 157 482 0 3023 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14028

[startup+1.50129 s]
/proc/loadavg: 1.16 1.06 1.02 2/107 31681
/proc/meminfo: memFree=1782892/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=25236 CPUtime=1.49
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 6326 0 0 0 147 2 0 0 23 0 1 0 30801420 25841664 5426 1992294400 134512640 136485738 4293043648 18446744073709551615 135177494 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31680/statm: 6309 5426 157 482 0 5825 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 25236

[startup+3.10156 s]
/proc/loadavg: 1.16 1.06 1.02 2/107 31681
/proc/meminfo: memFree=1767392/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=50776 CPUtime=3.09
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 12419 0 0 0 303 6 0 0 25 0 1 0 30801420 51994624 11519 1992294400 134512640 136485738 4293043648 18446744073709551615 134524659 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31680/statm: 12694 11519 157 482 0 12210 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 50776

[startup+6.30112 s]
/proc/loadavg: 1.15 1.06 1.02 2/107 31681
/proc/meminfo: memFree=1726348/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=77076 CPUtime=6.29
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 18744 0 0 0 620 9 0 0 25 0 1 0 30801420 78925824 17844 1992294400 134512640 136485738 4293043648 18446744073709551615 135180347 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31680/statm: 19269 17844 160 482 0 18785 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 77076

[startup+12.7012 s]
/proc/loadavg: 1.14 1.05 1.02 2/107 31681
/proc/meminfo: memFree=1607308/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=242164 CPUtime=12.69
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 61236 0 0 0 1241 28 0 0 25 0 1 0 30801420 247975936 58215 1992294400 134512640 136485738 4293043648 18446744073709551615 134776226 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31680/statm: 60541 58216 197 482 0 60057 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 242164

[startup+25.5004 s]
/proc/loadavg: 1.11 1.05 1.02 2/107 31681
/proc/meminfo: memFree=859340/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=990412 CPUtime=25.48
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 260935 0 0 0 2434 114 0 0 25 0 1 0 30801420 1014181888 238762 1992294400 134512640 136485738 4293043648 18446744073709551615 135839697 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31680/statm: 247603 238763 197 482 0 247119 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 990412



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+40.602 s]
/proc/loadavg: 1.08 1.05 1.01 2/107 31683
/proc/meminfo: memFree=14032/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=1846764 CPUtime=40.59
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4202496 490051 0 0 0 3845 214 0 0 25 0 1 0 30801420 1891086336 445216 1992294400 134512640 136485738 4293043648 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31680/statm: 461691 445216 197 482 0 461207 0
Current children cumulated CPU time (s) 40.59
Current children cumulated vsize (KiB) 1846764

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -31680

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

[startup+41.4011 s]
/proc/loadavg: 1.08 1.05 1.01 2/107 31683
/proc/meminfo: memFree=14032/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=1846764 CPUtime=40.59
/proc/31680/stat : 31680 (pbct) S 31678 31680 31163 0 -1 4194304 490057 0 0 0 3845 214 0 0 25 0 1 0 30801420 1891086336 445222 1992294400 134512640 136485738 4293043648 18446744073709551615 135319262 0 16384 4096 16387 18446604437840814272 0 0 17 1 0 0 0
/proc/31680/statm: 461691 445222 198 482 0 461207 0
Current children cumulated CPU time (s) 40.59
Current children cumulated vsize (KiB) 1846764

[startup+42.2013 s]
/proc/loadavg: 1.08 1.05 1.01 1/108 31684
/proc/meminfo: memFree=13652/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=1846764 CPUtime=40.59
/proc/31680/stat : 31680 (pbct) S 31678 31680 31163 0 -1 4194304 490057 0 0 0 3845 214 0 0 25 0 1 0 30801420 1891086336 445222 1992294400 134512640 136485738 4293043648 18446744073709551615 135319262 0 16384 4096 16387 18446604437840814272 0 0 17 1 0 0 0
/proc/31680/statm: 461691 445222 198 482 0 461207 0
Current children cumulated CPU time (s) 40.59
Current children cumulated vsize (KiB) 1846764

[startup+42.6014 s]
/proc/loadavg: 1.08 1.05 1.01 1/108 31684
/proc/meminfo: memFree=13652/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=1846764 CPUtime=40.59
/proc/31680/stat : 31680 (pbct) S 31678 31680 31163 0 -1 4194304 490057 0 0 0 3845 214 0 0 25 0 1 0 30801420 1891086336 445222 1992294400 134512640 136485738 4293043648 18446744073709551615 135319262 0 16384 4096 16387 18446604437840814272 0 0 17 1 0 0 0
/proc/31680/statm: 461691 445222 198 482 0 461207 0
Current children cumulated CPU time (s) 40.59
Current children cumulated vsize (KiB) 1846764

[startup+42.7014 s]
/proc/loadavg: 1.08 1.05 1.01 1/108 31684
/proc/meminfo: memFree=13652/2059040 swapFree=4136080/4192956
[pid=31680] ppid=31678 vsize=0 CPUtime=40.68
/proc/31680/stat : 31680 (pbct) R 31678 31680 31163 0 -1 4195332 490057 0 0 0 3845 223 0 0 18 0 1 0 30801420 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/31680/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 40.68
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 42.7924
CPU time (s): 40.7768
CPU user time (s): 38.4552
CPU system time (s): 2.32165
CPU usage (%): 95.2899
Max. virtual memory (cumulated for all children) (KiB): 1846764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 38.4552
system time used= 2.32165
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490057
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= 541

runsolver used 0.084987 second user time and 0.211967 second system time

The end

Launcher Data 

Begin job on node014 at 2010-06-14 23:46:40
IDJOB=2669323
IDBENCH=2428
IDSOLVER=1170
FILE ID=node014/2669323-1276551999
PBS_JOBID= 11173486
Free space on /tmp= 62488 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-d2q06c.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669323-1276551999/watcher-2669323-1276551999 -o /tmp/evaluation-result-2669323-1276551999/solver-2669323-1276551999 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669323-1276551999.opb

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

MD5SUM BENCH= 7b03b498d913dd1b306399e53ada7e6f
RANDOM SEED=543644007

node014.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		: 3000.258
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	: 6000.51
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		: 3000.258
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1798176 kB
Buffers:         37144 kB
Cached:         134796 kB
SwapCached:      11516 kB
Active:          95752 kB
Inactive:        90736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1798176 kB
SwapTotal:     4192956 kB
SwapFree:      4136080 kB
Dirty:           19828 kB
Writeback:           0 kB
AnonPages:       11548 kB
Mapped:           9356 kB
Slab:            52556 kB
PageTables:       3992 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183700 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62488 MiB
End job on node014 at 2010-06-14 23:47:23