Trace number 2682310

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) 32.3781 32.607

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos13.opb
MD5SUM1218478b67ec647ce24db44195ab22fa
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-88321224
Best CPU time to get the best result obtained on this benchmark1800.27
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -89698560
Optimality of the best value was proved NO
Number of variables1935
Total number of constraints19275
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints19274
Minimum length of a constraint10
Maximum length of a constraint1815
Number of terms in the objective function 120
Biggest coefficient in the objective function 103558656
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 2282563635
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 69966336000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 636991772142
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
9.28/9.33	c constraints 19275/0 clauses 0/0 units 8
9.28/9.33	c vars 1935
9.28/9.33	c objective 116 + -1954537011
32.17/32.42	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-2682310-1277484726/watcher-2682310-1277484726 -o /tmp/evaluation-result-2682310-1277484726/solver-2682310-1277484726 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682310-1277484726.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: 0.93 0.98 0.99 3/106 29574
/proc/meminfo: memFree=1779972/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=2136 CPUtime=0
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 264 0 0 0 0 0 0 0 18 0 1 0 89765279 2187264 184 1992294400 134512640 136421960 4291947408 18446744073709551615 135809522 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29574/statm: 534 184 146 467 0 65 0

[startup+0.067288 s]
/proc/loadavg: 0.93 0.98 0.99 3/106 29574
/proc/meminfo: memFree=1779972/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=2796 CPUtime=0.06
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 436 0 0 0 6 0 0 0 20 0 1 0 89765279 2863104 356 1992294400 134512640 136421960 4291947408 18446744073709551615 135809591 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29574/statm: 699 356 146 467 0 230 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2796

[startup+0.101291 s]
/proc/loadavg: 0.93 0.98 0.99 3/106 29574
/proc/meminfo: memFree=1779972/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=3324 CPUtime=0.09
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 538 0 0 0 9 0 0 0 20 0 1 0 89765279 3403776 458 1992294400 134512640 136421960 4291947408 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29574/statm: 831 458 146 467 0 362 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3324

[startup+0.30131 s]
/proc/loadavg: 0.93 0.98 0.99 3/106 29574
/proc/meminfo: memFree=1779972/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=5568 CPUtime=0.29
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 1101 0 0 0 29 0 0 0 20 0 1 0 89765279 5701632 1021 1992294400 134512640 136421960 4291947408 18446744073709551615 135159026 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29574/statm: 1392 1021 146 467 0 923 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5568

[startup+0.701351 s]
/proc/loadavg: 0.93 0.98 0.99 3/106 29574
/proc/meminfo: memFree=1779972/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=10452 CPUtime=0.69
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 2334 0 0 0 68 1 0 0 21 0 1 0 89765279 10702848 2254 1992294400 134512640 136421960 4291947408 18446744073709551615 135203776 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29574/statm: 2613 2254 146 467 0 2144 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10452

[startup+1.50143 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 29575
/proc/meminfo: memFree=1767440/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=22200 CPUtime=1.49
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 5262 0 0 0 147 2 0 0 23 0 1 0 89765279 22732800 5182 1992294400 134512640 136421960 4291947408 18446744073709551615 135818481 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29574/statm: 5550 5182 146 467 0 5081 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 22200

[startup+3.1006 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 29575
/proc/meminfo: memFree=1748096/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=52164 CPUtime=3.09
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 12749 0 0 0 303 6 0 0 25 0 1 0 89765279 53415936 12669 1992294400 134512640 136421960 4291947408 18446744073709551615 134536991 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29574/statm: 13041 12669 146 467 0 12572 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 52164

[startup+6.30092 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 29575
/proc/meminfo: memFree=1686096/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=113064 CPUtime=6.29
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 27976 0 0 0 616 13 0 0 25 0 1 0 89765279 115777536 27896 1992294400 134512640 136421960 4291947408 18446744073709551615 135378067 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29574/statm: 28266 27896 146 467 0 27797 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 113064

[startup+12.7006 s]
/proc/loadavg: 0.94 0.98 0.99 2/107 29575
/proc/meminfo: memFree=1416768/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=429432 CPUtime=12.69
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 110625 0 0 0 1218 51 0 0 25 0 1 0 89765279 439738368 104940 1992294400 134512640 136421960 4291947408 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29574/statm: 107358 104941 195 467 0 106889 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 429432

[startup+25.5009 s]
/proc/loadavg: 1.02 1.00 1.00 2/107 29575
/proc/meminfo: memFree=408524/2059040 swapFree=4140428/4192956
[pid=29574] ppid=29572 vsize=1420160 CPUtime=25.48
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 372197 0 0 0 2380 168 0 0 25 0 1 0 89765279 1454243840 348269 1992294400 134512640 136421960 4291947408 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29574/statm: 355040 348269 195 467 0 354571 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1420160



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+32.4016 s]
/proc/loadavg: 1.02 1.00 1.00 2/107 29575
/proc/meminfo: memFree=9720/2059040 swapFree=4139516/4192956
[pid=29574] ppid=29572 vsize=1843952 CPUtime=32.17
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4202496 487292 0 0 0 2992 225 0 0 25 0 1 0 89765279 1888206848 459136 1992294400 134512640 136421960 4291947408 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 20
/proc/29574/statm: 460988 459137 195 467 0 460519 0
Current children cumulated CPU time (s) 32.17
Current children cumulated vsize (KiB) 1843952

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

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

[startup+32.6016 s]
/proc/loadavg: 1.02 1.00 1.00 2/107 29575
/proc/meminfo: memFree=9720/2059040 swapFree=4139516/4192956
[pid=29574] ppid=29572 vsize=0 CPUtime=32.36
/proc/29574/stat : 29574 (pbct) R 29572 29574 28704 0 -1 4194308 487389 0 0 0 2993 243 0 0 25 0 1 0 89765279 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 20
/proc/29574/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 32.36
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 32.607
CPU time (s): 32.3781
CPU user time (s): 29.9394
CPU system time (s): 2.43863
CPU usage (%): 99.2979
Max. virtual memory (cumulated for all children) (KiB): 1843952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.9394
system time used= 2.43863
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 487389
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= 5
involuntary context switches= 109

runsolver used 0.051992 second user time and 0.171973 second system time

The end

Launcher Data 

Begin job on node045 at 2010-06-25 18:52:11
IDJOB=2682310
IDBENCH=2318
IDSOLVER=1192
FILE ID=node045/2682310-1277484726
PBS_JOBID= 11190500
Free space on /tmp= 62476 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos13.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682310-1277484726/watcher-2682310-1277484726 -o /tmp/evaluation-result-2682310-1277484726/solver-2682310-1277484726 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682310-1277484726.opb

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

MD5SUM BENCH= 1218478b67ec647ce24db44195ab22fa
RANDOM SEED=256107798

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:       1780252 kB
Buffers:         39220 kB
Cached:         136736 kB
SwapCached:       5348 kB
Active:          92296 kB
Inactive:        96692 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1780252 kB
SwapTotal:     4192956 kB
SwapFree:      4140428 kB
Dirty:           36928 kB
Writeback:           0 kB
AnonPages:       11596 kB
Mapped:          11872 kB
Slab:            67564 kB
PageTables:       4140 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182316 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= 62472 MiB
End job on node045 at 2010-06-25 18:52:45