Trace number 2682152

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 fixed? (MO) 30.2764 32.2849

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-fit2d.opb
MD5SUM98a903315aa0fe9737bc6b622eafe352
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -700
Optimality of the best value was proved NO
Number of variables118500
Total number of constraints10525
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 constraints10525
Minimum length of a constraint10
Maximum length of a constraint118500
Number of terms in the objective function 102000
Biggest coefficient in the objective function 166502400
Number of bits for the biggest coefficient in the objective function 28
Sum of the numbers in the objective function 44079267426
Number of bits of the sum of numbers in the objective function 36
Biggest number in a constraint 166502400
Number of bits of the biggest number in a constraint 28
Biggest sum of numbers in a constraint 44079267426
Number of bits of the biggest sum of numbers36
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
6.39/6.43	c constraints 10525/0 clauses 0/0 units 0
6.39/6.43	c vars 118500
6.39/6.43	c objective 102000 + -3752283626

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-2682152-1277486651/watcher-2682152-1277486651 -o /tmp/evaluation-result-2682152-1277486651/solver-2682152-1277486651 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682152-1277486651.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: 0.92 0.98 0.99 3/106 29745
/proc/meminfo: memFree=1852500/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=2416 CPUtime=0
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 292 0 0 0 0 0 0 0 20 0 1 0 89957498 2473984 212 1992294400 134512640 136421960 4288956960 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29745/statm: 604 212 135 467 0 135 0

[startup+0.065849 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 29745
/proc/meminfo: memFree=1852500/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=4008 CPUtime=0.06
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 790 0 0 0 6 0 0 0 20 0 1 0 89957498 4104192 563 1992294400 134512640 136421960 4288956960 18446744073709551615 135378032 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29745/statm: 1002 563 135 467 0 533 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4008

[startup+0.100852 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 29745
/proc/meminfo: memFree=1852500/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=5864 CPUtime=0.09
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 1315 0 0 0 9 0 0 0 20 0 1 0 89957498 6004736 862 1992294400 134512640 136421960 4288956960 18446744073709551615 135308192 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29745/statm: 1466 862 135 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.300873 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 29745
/proc/meminfo: memFree=1852500/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=9492 CPUtime=0.29
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 2684 0 0 0 28 1 0 0 20 0 1 0 89957498 9719808 1781 1992294400 134512640 136421960 4288956960 18446744073709551615 135818536 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29745/statm: 2373 1781 136 467 0 1904 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9492

[startup+0.700913 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 29745
/proc/meminfo: memFree=1852500/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=17280 CPUtime=0.69
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 4643 0 0 0 67 2 0 0 21 0 1 0 89957498 17694720 3740 1992294400 134512640 136421960 4288956960 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29745/statm: 4320 3740 145 467 0 3851 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17280

[startup+1.50099 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 29746
/proc/meminfo: memFree=1829056/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=35724 CPUtime=1.49
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 10171 0 0 0 145 4 0 0 22 0 1 0 89957498 36581376 8110 1992294400 134512640 136421960 4288956960 18446744073709551615 135160288 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29745/statm: 8931 8110 145 467 0 8462 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 35724

[startup+3.10116 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 29746
/proc/meminfo: memFree=1812936/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=65108 CPUtime=3.09
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 17964 0 0 0 301 8 0 0 25 0 1 0 89957498 66670592 14358 1992294400 134512640 136421960 4288956960 18446744073709551615 135158995 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29745/statm: 16277 14358 145 467 0 15808 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 65108

[startup+6.30048 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 29746
/proc/meminfo: memFree=1758004/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=130216 CPUtime=6.29
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 35171 0 0 0 612 17 0 0 25 0 1 0 89957498 133341184 27446 1992294400 134512640 136421960 4288956960 18446744073709551615 134541212 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29745/statm: 32554 27446 145 467 0 32085 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 130216

[startup+12.7011 s]
/proc/loadavg: 0.94 0.98 0.99 2/107 29748
/proc/meminfo: memFree=1255060/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=689156 CPUtime=12.69
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 181060 0 0 0 1184 85 0 0 25 0 1 0 89957498 705695744 163207 1992294400 134512640 136421960 4288956960 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29745/statm: 172289 163208 194 467 0 171820 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 689156

[startup+25.5014 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 29748
/proc/meminfo: memFree=330144/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=1570348 CPUtime=25.48
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 420475 0 0 0 2358 190 0 0 25 0 1 0 89957498 1608036352 384137 1992294400 134512640 136421960 4288956960 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29745/statm: 392587 384137 194 467 0 392118 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1570348



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+30.1019 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 29748
/proc/meminfo: memFree=85864/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=1846456 CPUtime=30.1
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4202496 495195 0 0 0 2787 223 0 0 25 0 1 0 89957498 1890770944 441013 1992294400 134512640 136421960 4288956960 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29745/statm: 461614 441014 195 467 0 461145 0
Current children cumulated CPU time (s) 30.1
Current children cumulated vsize (KiB) 1846456

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -29745

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

[startup+30.2089 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 29748
/proc/meminfo: memFree=85864/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=1846588 CPUtime=30.1
/proc/29745/stat : 29745 (pbct) S 29743 29745 28704 0 -1 4194304 495199 0 0 0 2787 223 0 0 25 0 1 0 89957498 1890906112 441017 1992294400 134512640 136421960 4288956960 18446744073709551615 135884462 0 16384 4096 16387 18446604437837732608 0 0 17 1 0 0 0
/proc/29745/statm: 461647 441017 196 467 0 461178 0
Current children cumulated CPU time (s) 30.1
Current children cumulated vsize (KiB) 1846588

[startup+31.001 s]
/proc/loadavg: 0.95 0.98 0.99 1/108 29749
/proc/meminfo: memFree=85484/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=1846588 CPUtime=30.1
/proc/29745/stat : 29745 (pbct) S 29743 29745 28704 0 -1 4194304 495199 0 0 0 2787 223 0 0 25 0 1 0 89957498 1890906112 441017 1992294400 134512640 136421960 4288956960 18446744073709551615 135884462 0 16384 4096 16387 18446604437837732608 0 0 17 1 0 0 0
/proc/29745/statm: 461647 441017 196 467 0 461178 0
Current children cumulated CPU time (s) 30.1
Current children cumulated vsize (KiB) 1846588

[startup+31.8011 s]
/proc/loadavg: 0.87 0.97 0.99 1/108 29749
/proc/meminfo: memFree=85484/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=1846588 CPUtime=30.1
/proc/29745/stat : 29745 (pbct) S 29743 29745 28704 0 -1 4194304 495199 0 0 0 2787 223 0 0 25 0 1 0 89957498 1890906112 441017 1992294400 134512640 136421960 4288956960 18446744073709551615 135884462 0 16384 4096 16387 18446604437837732608 0 0 17 1 0 0 0
/proc/29745/statm: 461647 441017 196 467 0 461178 0
Current children cumulated CPU time (s) 30.1
Current children cumulated vsize (KiB) 1846588

[startup+32.2011 s]
/proc/loadavg: 0.87 0.97 0.99 1/108 29749
/proc/meminfo: memFree=85484/2059040 swapFree=4139516/4192956
[pid=29745] ppid=29743 vsize=0 CPUtime=30.19
/proc/29745/stat : 29745 (pbct) R 29743 29745 28704 0 -1 4195332 495199 0 0 0 2787 232 0 0 18 0 1 0 89957498 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/29745/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 30.19
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 32.2849
CPU time (s): 30.2764
CPU user time (s): 27.8708
CPU system time (s): 2.40563
CPU usage (%): 93.7787
Max. virtual memory (cumulated for all children) (KiB): 1846588

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.8708
system time used= 2.40563
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 495199
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= 121

runsolver used 0.06099 second user time and 0.161975 second system time

The end

Launcher Data 

Begin job on node045 at 2010-06-25 19:24:13
IDJOB=2682152
IDBENCH=2404
IDSOLVER=1192
FILE ID=node045/2682152-1277486651
PBS_JOBID= 11190500
Free space on /tmp= 62488 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-fit2d.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682152-1277486651/watcher-2682152-1277486651 -o /tmp/evaluation-result-2682152-1277486651/solver-2682152-1277486651 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682152-1277486651.opb

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

MD5SUM BENCH= 98a903315aa0fe9737bc6b622eafe352
RANDOM SEED=39705433

node045.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		: 3000.247
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	: 6000.49
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		: 3000.247
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	: 5599.43
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1853028 kB
Buffers:          9024 kB
Cached:         100408 kB
SwapCached:       5824 kB
Active:          48500 kB
Inactive:        73488 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1853028 kB
SwapTotal:     4192956 kB
SwapFree:      4139516 kB
Dirty:           22328 kB
Writeback:           0 kB
AnonPages:       11388 kB
Mapped:          11892 kB
Slab:            61912 kB
PageTables:       4140 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182404 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 node045 at 2010-06-25 19:24:45