Trace number 2668311

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) 34.2038 34.4153

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-dano3_5.opb
MD5SUM143c67a6efdf0b74421c6a96157a0df7
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 variables404336
Total number of constraints3663
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)5
Number of constraints which are nor clauses,nor cardinality constraints3658
Minimum length of a constraint11
Maximum length of a constraint15900
Number of terms in the objective function 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 134217728000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 569083166190
Number of bits of the biggest sum of numbers40
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
7.79/7.89	c constraints 3663/0 clauses 0/0 units 5628
7.79/7.89	c vars 404336
7.79/7.89	c objective 30 + 0
34.01/34.23	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-2668311-1276526835/watcher-2668311-1276526835 -o /tmp/evaluation-result-2668311-1276526835/solver-2668311-1276526835 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668311-1276526835.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: 2.15 2.00 1.65 3/106 349
/proc/meminfo: memFree=1822424/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=2208 CPUtime=0
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 261 0 0 0 0 0 0 0 18 0 1 0 28287710 2260992 183 1992294400 134512640 136485738 4288153952 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/349/statm: 552 183 156 482 0 68 0

[startup+0.031539 s]
/proc/loadavg: 2.15 2.00 1.65 3/106 349
/proc/meminfo: memFree=1822424/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=2880 CPUtime=0.03
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 436 0 0 0 3 0 0 0 20 0 1 0 28287710 2949120 358 1992294400 134512640 136485738 4288153952 18446744073709551615 135171750 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/349/statm: 720 358 156 482 0 236 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2880

[startup+0.101545 s]
/proc/loadavg: 2.15 2.00 1.65 3/106 349
/proc/meminfo: memFree=1822424/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=4716 CPUtime=0.09
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 831 0 0 0 9 0 0 0 20 0 1 0 28287710 4829184 753 1992294400 134512640 136485738 4288153952 18446744073709551615 135180888 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/349/statm: 1179 753 156 482 0 695 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4716

[startup+0.301564 s]
/proc/loadavg: 2.15 2.00 1.65 3/106 349
/proc/meminfo: memFree=1822424/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=9548 CPUtime=0.29
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 1929 0 0 0 29 0 0 0 20 0 1 0 28287710 9777152 1851 1992294400 134512640 136485738 4288153952 18446744073709551615 135849033 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/349/statm: 2387 1851 156 482 0 1903 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9548

[startup+0.701606 s]
/proc/loadavg: 2.15 2.00 1.65 3/106 349
/proc/meminfo: memFree=1822424/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=19480 CPUtime=0.69
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 4136 0 0 0 68 1 0 0 20 0 1 0 28287710 19947520 4058 1992294400 134512640 136485738 4288153952 18446744073709551615 135857078 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/349/statm: 4870 4060 156 482 0 4386 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19480

[startup+1.50169 s]
/proc/loadavg: 2.15 2.00 1.65 2/107 350
/proc/meminfo: memFree=1800096/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=39060 CPUtime=1.49
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 8522 0 0 0 146 3 0 0 23 0 1 0 28287710 39997440 8444 1992294400 134512640 136485738 4288153952 18446744073709551615 135843937 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/349/statm: 9765 8444 156 482 0 9281 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 39060

[startup+3.10085 s]
/proc/loadavg: 2.15 2.00 1.65 2/107 350
/proc/meminfo: memFree=1775792/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=76756 CPUtime=3.09
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 17344 0 0 0 303 6 0 0 25 0 1 0 28287710 78598144 17266 1992294400 134512640 136485738 4288153952 18446744073709551615 135419060 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/349/statm: 19189 17266 157 482 0 18705 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 76756

[startup+6.30118 s]
/proc/loadavg: 2.06 1.99 1.65 2/107 350
/proc/meminfo: memFree=1709080/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=140620 CPUtime=6.29
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 33071 0 0 0 613 16 0 0 25 0 1 0 28287710 143994880 32960 1992294400 134512640 136485738 4288153952 18446744073709551615 135177445 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/349/statm: 35155 32963 157 482 0 34671 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 140620

[startup+12.7008 s]
/proc/loadavg: 1.98 1.97 1.64 2/107 350
/proc/meminfo: memFree=1379984/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=506712 CPUtime=12.69
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 128288 0 0 0 1211 58 0 0 25 0 1 0 28287710 518873088 122637 1992294400 134512640 136485738 4288153952 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/349/statm: 126678 122637 197 482 0 126194 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 506712

[startup+25.5011 s]
/proc/loadavg: 1.76 1.92 1.63 2/107 350
/proc/meminfo: memFree=536412/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=1344016 CPUtime=25.48
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 350871 0 0 0 2399 149 0 0 25 0 1 0 28287710 1376272384 326335 1992294400 134512640 136485738 4288153952 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/349/statm: 336004 326336 197 482 0 335520 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1344016



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+34.2269 s]
/proc/loadavg: 1.72 1.91 1.63 2/107 350
/proc/meminfo: memFree=10704/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=1847656 CPUtime=34.01
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4202496 486862 0 0 0 3194 207 0 0 25 0 1 0 28287710 1891999744 458483 1992294400 134512640 136485738 4288153952 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 19
/proc/349/statm: 461914 458484 197 482 0 461430 0
Current children cumulated CPU time (s) 34.01
Current children cumulated vsize (KiB) 1847656

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

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

[startup+34.3101 s]
/proc/loadavg: 1.72 1.91 1.63 2/107 350
/proc/meminfo: memFree=10704/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=0 CPUtime=34.09
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4194308 486961 0 0 0 3195 214 0 0 25 0 1 0 28287710 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 19
/proc/349/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.09
Current children cumulated vsize (KiB) 0

[startup+34.4011 s]
/proc/loadavg: 1.72 1.91 1.63 2/107 350
/proc/meminfo: memFree=10704/2059040 swapFree=4135652/4192956
[pid=349] ppid=347 vsize=0 CPUtime=34.18
/proc/349/stat : 349 (pbct) R 347 349 32133 0 -1 4194308 486961 0 0 0 3195 223 0 0 25 0 1 0 28287710 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 19
/proc/349/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.18
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 34.4153
CPU time (s): 34.2038
CPU user time (s): 31.9521
CPU system time (s): 2.25166
CPU usage (%): 99.3855
Max. virtual memory (cumulated for all children) (KiB): 1847656

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.9521
system time used= 2.25166
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 486961
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= 450

runsolver used 0.044993 second user time and 0.19397 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-14 16:47:17
IDJOB=2668311
IDBENCH=2314
IDSOLVER=1170
FILE ID=node002/2668311-1276526835
PBS_JOBID= 11173434
Free space on /tmp= 62428 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-dano3_5.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668311-1276526835/watcher-2668311-1276526835 -o /tmp/evaluation-result-2668311-1276526835/solver-2668311-1276526835 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668311-1276526835.opb

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

MD5SUM BENCH= 143c67a6efdf0b74421c6a96157a0df7
RANDOM SEED=1065829040

node002.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		: 3000.242
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	: 6000.48
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		: 3000.242
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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1822580 kB
Buffers:         14908 kB
Cached:         129932 kB
SwapCached:      10336 kB
Active:         103464 kB
Inactive:        54216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1822580 kB
SwapTotal:     4192956 kB
SwapFree:      4135652 kB
Dirty:           34284 kB
Writeback:           0 kB
AnonPages:       11256 kB
Mapped:           9092 kB
Slab:            56464 kB
PageTables:       4020 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181104 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= 62424 MiB
End job on node002 at 2010-06-14 16:47:54