Trace number 2668319

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 0.1UNSAT 14.4158 14.419

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos2.opb
MD5SUM44facea850693084b6f9bb62059a35af
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 variables32294
Total number of constraints1133
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)13
Number of constraints which are nor clauses,nor cardinality constraints1120
Minimum length of a constraint10
Maximum length of a constraint4780
Number of terms in the objective function 124
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 8589934588
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 2454208150643933184000
Number of bits of the biggest number in a constraint 72
Biggest sum of numbers in a constraint 289272765430218968121839
Number of bits of the biggest sum of numbers78
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
3.09/3.12	c constraints 1133/0 clauses 0/0 units 18684
3.09/3.12	c vars 32294
3.09/3.12	c objective 124 + 0
11.69/11.75	c 11.1823 523.363 0 0
14.30/14.37	s UNSATISFIABLE

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-2668319-1276531169/watcher-2668319-1276531169 -o /tmp/evaluation-result-2668319-1276531169/solver-2668319-1276531169 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668319-1276531169.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: 1.00 1.00 1.00 3/106 29305
/proc/meminfo: memFree=1786508/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=2356 CPUtime=0
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 293 0 0 0 0 0 0 0 18 0 1 0 28718722 2412544 216 1992294400 134512640 136485738 4293185328 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29305/statm: 589 216 157 482 0 105 0

[startup+0.109293 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29305
/proc/meminfo: memFree=1786508/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=3600 CPUtime=0.1
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 532 0 0 0 10 0 0 0 20 0 1 0 28718722 3686400 455 1992294400 134512640 136485738 4293185328 18446744073709551615 134536590 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29305/statm: 900 455 157 482 0 416 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3600

[startup+0.201302 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29305
/proc/meminfo: memFree=1786508/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=3600 CPUtime=0.19
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 532 0 0 0 19 0 0 0 20 0 1 0 28718722 3686400 455 1992294400 134512640 136485738 4293185328 18446744073709551615 135177556 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29305/statm: 900 455 157 482 0 416 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3600

[startup+0.301313 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29305
/proc/meminfo: memFree=1786508/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=3600 CPUtime=0.29
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 532 0 0 0 29 0 0 0 20 0 1 0 28718722 3686400 455 1992294400 134512640 136485738 4293185328 18446744073709551615 134541304 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29305/statm: 900 455 157 482 0 416 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3600

[startup+0.701357 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 29305
/proc/meminfo: memFree=1786508/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=3600 CPUtime=0.69
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 532 0 0 0 69 0 0 0 21 0 1 0 28718722 3686400 455 1992294400 134512640 136485738 4293185328 18446744073709551615 134536638 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29305/statm: 900 455 157 482 0 416 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.50145 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29308
/proc/meminfo: memFree=1785260/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=3600 CPUtime=1.49
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 532 0 0 0 149 0 0 0 23 0 1 0 28718722 3686400 455 1992294400 134512640 136485738 4293185328 18446744073709551615 135180355 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29305/statm: 900 455 157 482 0 416 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3600

[startup+3.10162 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29308
/proc/meminfo: memFree=1785136/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=12436 CPUtime=3.09
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 2446 0 0 0 309 0 0 0 25 0 1 0 28718722 12734464 2369 1992294400 134512640 136485738 4293185328 18446744073709551615 135844779 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29305/statm: 3109 2369 157 482 0 2625 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 12436

[startup+6.30198 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29308
/proc/meminfo: memFree=1598888/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=227864 CPUtime=6.29
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 59346 0 0 0 603 26 0 0 25 0 1 0 28718722 233332736 56151 1992294400 134512640 136485738 4293185328 18446744073709551615 134719603 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29305/statm: 56966 56152 197 482 0 56482 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 227864

[startup+12.7017 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29308
/proc/meminfo: memFree=1287772/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=494168 CPUtime=12.69
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 140147 0 0 0 1213 56 0 0 25 0 1 0 28718722 506028032 121074 1992294400 134512640 136485738 4293185328 18446744073709551615 134720107 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29305/statm: 123542 121074 248 482 0 123058 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 494168

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

[startup+12.8017 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29308
/proc/meminfo: memFree=1287772/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=494168 CPUtime=12.79
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 140147 0 0 0 1223 56 0 0 25 0 1 0 28718722 506028032 121074 1992294400 134512640 136485738 4293185328 18446744073709551615 134720130 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29305/statm: 123542 121074 248 482 0 123058 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 494168

[startup+13.6018 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29308
/proc/meminfo: memFree=1322244/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=464584 CPUtime=13.59
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 140147 0 0 0 1302 57 0 0 25 0 1 0 28718722 475734016 115804 1992294400 134512640 136485738 4293185328 18446744073709551615 135839787 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29305/statm: 116146 115804 248 482 0 115662 0
Current children cumulated CPU time (s) 13.59
Current children cumulated vsize (KiB) 464584

[startup+14.0018 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29308
/proc/meminfo: memFree=1322244/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=464584 CPUtime=13.99
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202496 140147 0 0 0 1342 57 0 0 25 0 1 0 28718722 475734016 115804 1992294400 134512640 136485738 4293185328 18446744073709551615 135839796 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29305/statm: 116146 115804 248 482 0 115662 0
Current children cumulated CPU time (s) 13.99
Current children cumulated vsize (KiB) 464584

[startup+14.4089 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 29308
/proc/meminfo: memFree=1322368/2059040 swapFree=4140228/4192956
[pid=29305] ppid=29303 vsize=0 CPUtime=14.39
/proc/29305/stat : 29305 (pbct) R 29303 29305 29000 0 -1 4202500 140148 0 0 0 1379 60 0 0 25 0 1 0 28718722 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/29305/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 14.39
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 14.419
CPU time (s): 14.4158
CPU user time (s): 13.7969
CPU system time (s): 0.618905
CPU usage (%): 99.9782
Max. virtual memory (cumulated for all children) (KiB): 535008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.7969
system time used= 0.618905
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 140148
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= 188

runsolver used 0.027995 second user time and 0.073988 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-14 17:59:30
IDJOB=2668319
IDBENCH=2332
IDSOLVER=1170
FILE ID=node009/2668319-1276531169
PBS_JOBID= 11173451
Free space on /tmp= 62448 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-neos2.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668319-1276531169/watcher-2668319-1276531169 -o /tmp/evaluation-result-2668319-1276531169/solver-2668319-1276531169 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668319-1276531169.opb

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

MD5SUM BENCH= 44facea850693084b6f9bb62059a35af
RANDOM SEED=179575348

node009.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		: 3000.199
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	: 6000.39
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		: 3000.199
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1787028 kB
Buffers:         75932 kB
Cached:         117232 kB
SwapCached:       5716 kB
Active:          96492 kB
Inactive:       108936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1787028 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:            4012 kB
Writeback:           8 kB
AnonPages:       10832 kB
Mapped:          12820 kB
Slab:            44596 kB
PageTables:       4064 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181308 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= 62448 MiB
End job on node009 at 2010-06-14 17:59:44