Trace number 2668335

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) 34.5747 34.5822

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-greenbeb.opb
MD5SUMebe0bf73b5f65c9fef014886519c9815
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
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables155020
Total number of constraints2675
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 constraints2675
Minimum length of a constraint11
Maximum length of a constraint7172
Number of terms in the objective function 14882
Biggest coefficient in the objective function 536870912000000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 12491747892670016
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 536870912000000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 24454743822989865
Number of bits of the biggest sum of numbers55
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
3.30/3.33	c constraints 2675/0 clauses 0/0 units 369
3.30/3.33	c vars 155020
3.30/3.33	c objective 14882 + -6514339591161790
34.39/34.40	s UNKNOWN

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-2668335-1276543929/watcher-2668335-1276543929 -o /tmp/evaluation-result-2668335-1276543929/solver-2668335-1276543929 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668335-1276543929.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 0.99 0.99 3/106 31729
/proc/meminfo: memFree=1847156/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=2488 CPUtime=0
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 302 0 0 0 0 0 0 0 17 0 1 0 28049333 2547712 225 1992294400 134512640 136485738 4290738640 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31729/statm: 622 226 151 482 0 138 0

[startup+0.075333 s]
/proc/loadavg: 0.92 0.99 0.99 3/106 31729
/proc/meminfo: memFree=1847156/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=3472 CPUtime=0.07
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 589 0 0 0 7 0 0 0 17 0 1 0 28049333 3555328 479 1992294400 134512640 136485738 4290738640 18446744073709551615 135419045 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31729/statm: 868 479 156 482 0 384 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 3472

[startup+0.101335 s]
/proc/loadavg: 0.92 0.99 0.99 3/106 31729
/proc/meminfo: memFree=1847156/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=4004 CPUtime=0.09
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 733 0 0 0 9 0 0 0 17 0 1 0 28049333 4100096 623 1992294400 134512640 136485738 4290738640 18446744073709551615 135177566 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31729/statm: 1001 623 156 482 0 517 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4004

[startup+0.301355 s]
/proc/loadavg: 0.92 0.99 0.99 3/106 31729
/proc/meminfo: memFree=1847156/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=8096 CPUtime=0.29
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 1750 0 0 0 29 0 0 0 17 0 1 0 28049333 8290304 1640 1992294400 134512640 136485738 4290738640 18446744073709551615 135415718 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31729/statm: 2024 1640 156 482 0 1540 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8096

[startup+0.701393 s]
/proc/loadavg: 0.92 0.99 0.99 3/106 31729
/proc/meminfo: memFree=1847156/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=16108 CPUtime=0.69
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 3701 0 0 0 68 1 0 0 17 0 1 0 28049333 16494592 3591 1992294400 134512640 136485738 4290738640 18446744073709551615 135180895 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31729/statm: 4027 3591 156 482 0 3543 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16108

[startup+1.50147 s]
/proc/loadavg: 0.93 0.99 0.99 2/107 31730
/proc/meminfo: memFree=1827804/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=31924 CPUtime=1.49
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 7395 0 0 0 147 2 0 0 18 0 1 0 28049333 32690176 7285 1992294400 134512640 136485738 4290738640 18446744073709551615 135411189 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31729/statm: 7981 7286 156 482 0 7497 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 31924

[startup+3.10162 s]
/proc/loadavg: 0.93 0.99 0.99 2/107 31730
/proc/meminfo: memFree=1806848/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=61940 CPUtime=3.09
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 14458 0 0 0 303 6 0 0 21 0 1 0 28049333 63426560 14348 1992294400 134512640 136485738 4290738640 18446744073709551615 135565571 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31729/statm: 15485 14348 157 482 0 15001 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 61940

[startup+6.30093 s]
/proc/loadavg: 0.93 0.99 0.99 2/107 31730
/proc/meminfo: memFree=1627296/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=288596 CPUtime=6.29
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 73639 0 0 0 595 34 0 0 25 0 1 0 28049333 295522304 70553 1992294400 134512640 136485738 4290738640 18446744073709551615 135468577 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31729/statm: 72149 70554 197 482 0 71665 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 288596

[startup+12.7015 s]
/proc/loadavg: 0.94 0.99 0.99 2/107 31730
/proc/meminfo: memFree=1209044/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=695160 CPUtime=12.69
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 180980 0 0 0 1190 79 0 0 25 0 1 0 28049333 711843840 169245 1992294400 134512640 136485738 4290738640 18446744073709551615 135317439 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31729/statm: 173790 169246 197 482 0 173306 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 695160

[startup+25.5008 s]
/proc/loadavg: 0.95 0.99 0.99 2/107 31730
/proc/meminfo: memFree=534856/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=1348756 CPUtime=25.49
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 356875 0 0 0 2395 154 0 0 25 0 1 0 28049333 1381126144 331573 1992294400 134512640 136485738 4290738640 18446744073709551615 135350462 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31729/statm: 337189 331573 197 482 0 336705 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1348756



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+34.4006 s]
/proc/loadavg: 0.95 0.99 0.99 2/107 31730
/proc/meminfo: memFree=75684/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=1847400 CPUtime=34.39
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4202496 491038 0 0 0 3233 206 0 0 25 0 1 0 28049333 1891737600 442185 1992294400 134512640 136485738 4290738640 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31729/statm: 461883 442186 197 482 0 461399 0
Current children cumulated CPU time (s) 34.39
Current children cumulated vsize (KiB) 1847400

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

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

[startup+34.5086 s]
/proc/loadavg: 0.95 0.99 0.99 2/107 31730
/proc/meminfo: memFree=75684/2059040 swapFree=4140228/4192956
[pid=31729] ppid=31727 vsize=0 CPUtime=34.49
/proc/31729/stat : 31729 (pbct) R 31727 31729 31584 0 -1 4194308 491044 0 0 0 3233 216 0 0 25 0 1 0 28049333 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/31729/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.49
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 34.5822
CPU time (s): 34.5747
CPU user time (s): 32.3311
CPU system time (s): 2.24366
CPU usage (%): 99.9783
Max. virtual memory (cumulated for all children) (KiB): 1847400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.3311
system time used= 2.24366
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 491044
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= 53

runsolver used 0.06299 second user time and 0.172973 second system time

The end

Launcher Data 

Begin job on node018 at 2010-06-14 21:32:10
IDJOB=2668335
IDBENCH=2383
IDSOLVER=1170
FILE ID=node018/2668335-1276543929
PBS_JOBID= 11173477
Free space on /tmp= 62356 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-greenbeb.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668335-1276543929/watcher-2668335-1276543929 -o /tmp/evaluation-result-2668335-1276543929/solver-2668335-1276543929 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668335-1276543929.opb

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

MD5SUM BENCH= ebe0bf73b5f65c9fef014886519c9815
RANDOM SEED=562937510

node018.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		: 3000.248
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		: 3000.248
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1847684 kB
Buffers:         20652 kB
Cached:         103336 kB
SwapCached:       5836 kB
Active:          86660 kB
Inactive:        49944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1847684 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:           16224 kB
Writeback:           0 kB
AnonPages:       11076 kB
Mapped:          13016 kB
Slab:            52888 kB
PageTables:       3984 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179708 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= 62352 MiB
End job on node018 at 2010-06-14 21:32:46