Trace number 2681911

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) 32.0731 32.1091

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-dano3_3.opb
MD5SUM1c7fb7925778882f8c8001dcd3838f28
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 variables404796
Total number of constraints3709
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)3
Number of constraints which are nor clauses,nor cardinality constraints3706
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
7.70/7.74	c constraints 3709/0 clauses 0/0 units 5574
7.70/7.74	c vars 404796
7.70/7.74	c objective 30 + 0
31.88/31.92	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-2681911-1277485089/watcher-2681911-1277485089 -o /tmp/evaluation-result-2681911-1277485089/solver-2681911-1277485089 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681911-1277485089.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 0.98 2/106 30322
/proc/meminfo: memFree=1805712/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=2136 CPUtime=0
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 270 0 0 0 0 0 0 0 19 0 1 0 89804475 2187264 190 1992294400 134512640 136421960 4286982176 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30322/statm: 534 190 145 467 0 65 0

[startup+0.0732991 s]
/proc/loadavg: 1.00 1.00 0.98 2/106 30322
/proc/meminfo: memFree=1805712/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=3944 CPUtime=0.06
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 667 0 0 0 6 0 0 0 19 0 1 0 89804475 4038656 587 1992294400 134512640 136421960 4286982176 18446744073709551615 135153522 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30322/statm: 986 587 145 467 0 517 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3944

[startup+0.1013 s]
/proc/loadavg: 1.00 1.00 0.98 2/106 30322
/proc/meminfo: memFree=1805712/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=4664 CPUtime=0.09
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 821 0 0 0 9 0 0 0 19 0 1 0 89804475 4775936 741 1992294400 134512640 136421960 4286982176 18446744073709551615 134523747 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30322/statm: 1166 741 145 467 0 697 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4664

[startup+0.301313 s]
/proc/loadavg: 1.00 1.00 0.98 2/106 30322
/proc/meminfo: memFree=1805712/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=9628 CPUtime=0.29
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 1963 0 0 0 29 0 0 0 20 0 1 0 89804475 9859072 1883 1992294400 134512640 136421960 4286982176 18446744073709551615 135377256 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30322/statm: 2407 1884 145 467 0 1938 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9628

[startup+0.701338 s]
/proc/loadavg: 1.00 1.00 0.98 2/106 30322
/proc/meminfo: memFree=1805712/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=19692 CPUtime=0.68
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 4197 0 0 0 67 1 0 0 20 0 1 0 89804475 20164608 4117 1992294400 134512640 136421960 4286982176 18446744073709551615 135380492 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30322/statm: 4923 4117 145 467 0 4454 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 19692

[startup+1.50139 s]
/proc/loadavg: 1.00 1.00 0.98 2/107 30323
/proc/meminfo: memFree=1783508/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=39848 CPUtime=1.48
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 8686 0 0 0 145 3 0 0 22 0 1 0 89804475 40804352 8606 1992294400 134512640 136421960 4286982176 18446744073709551615 135818196 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30322/statm: 9962 8606 145 467 0 9493 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 39848

[startup+3.10149 s]
/proc/loadavg: 1.00 1.00 0.98 2/107 30323
/proc/meminfo: memFree=1758708/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=78592 CPUtime=3.09
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 17760 0 0 0 301 8 0 0 25 0 1 0 89804475 80478208 17680 1992294400 134512640 136421960 4286982176 18446744073709551615 135162382 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30322/statm: 19648 17680 146 467 0 19179 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 78592

[startup+6.3007 s]
/proc/loadavg: 1.00 1.00 0.98 2/107 30323
/proc/meminfo: memFree=1691004/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=143632 CPUtime=6.29
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 33791 0 0 0 615 14 0 0 25 0 1 0 89804475 147079168 33678 1992294400 134512640 136421960 4286982176 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30322/statm: 35908 33678 146 467 0 35439 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 143632

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 0.98 2/107 30323
/proc/meminfo: memFree=1326816/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=539992 CPUtime=12.69
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 137075 0 0 0 1208 61 0 0 25 0 1 0 89804475 552951808 131422 1992294400 134512640 136421960 4286982176 18446744073709551615 135316865 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30322/statm: 134998 131422 195 467 0 134529 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 539992

[startup+25.5009 s]
/proc/loadavg: 1.00 1.00 0.98 2/107 30325
/proc/meminfo: memFree=402024/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=1458256 CPUtime=25.47
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 380876 0 0 0 2380 167 0 0 25 0 1 0 89804475 1493254144 356338 1992294400 134512640 136421960 4286982176 18446744073709551615 134541812 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30322/statm: 364564 356339 195 467 0 364095 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 1458256



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.9175 s]
/proc/loadavg: 1.00 1.00 0.98 2/107 30325
/proc/meminfo: memFree=10592/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=1848112 CPUtime=31.88
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4202496 486971 0 0 0 2970 218 0 0 25 0 1 0 89804475 1892466688 458590 1992294400 134512640 136421960 4286982176 18446744073709551615 135810658 0 0 4096 16387 0 0 0 17 1 0 0 1
/proc/30322/statm: 462028 458591 195 467 0 461559 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 1848112

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

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

[startup+32.0094 s]
/proc/loadavg: 1.00 1.00 0.98 2/107 30325
/proc/meminfo: memFree=10592/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=0 CPUtime=31.96
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4194308 486981 0 0 0 2970 226 0 0 25 0 1 0 89804475 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 1
/proc/30322/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 31.96
Current children cumulated vsize (KiB) 0

[startup+32.1014 s]
/proc/loadavg: 1.00 1.00 0.98 2/107 30325
/proc/meminfo: memFree=10592/2059040 swapFree=4139332/4192956
[pid=30322] ppid=30320 vsize=0 CPUtime=32.06
/proc/30322/stat : 30322 (pbct) R 30320 30322 29393 0 -1 4194308 486981 0 0 0 2970 236 0 0 25 0 1 0 89804475 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 1
/proc/30322/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 32.06
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 32.1091
CPU time (s): 32.0731
CPU user time (s): 29.7055
CPU system time (s): 2.36764
CPU usage (%): 99.8879
Max. virtual memory (cumulated for all children) (KiB): 1848112

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.7055
system time used= 2.36764
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 486981
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= 54

runsolver used 0.041993 second user time and 0.182972 second system time

The end

Launcher Data 

Begin job on node030 at 2010-06-25 18:58:11
IDJOB=2681911
IDBENCH=2329
IDSOLVER=1192
FILE ID=node030/2681911-1277485089
PBS_JOBID= 11190513
Free space on /tmp= 62464 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-dano3_3.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681911-1277485089/watcher-2681911-1277485089 -o /tmp/evaluation-result-2681911-1277485089/solver-2681911-1277485089 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681911-1277485089.opb

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

MD5SUM BENCH= 1c7fb7925778882f8c8001dcd3838f28
RANDOM SEED=749930655

node030.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		: 3000.244
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		: 3000.244
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	: 5599.52
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1805984 kB
Buffers:         21488 kB
Cached:         128620 kB
SwapCached:       6272 kB
Active:         100144 kB
Inactive:        63184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1805984 kB
SwapTotal:     4192956 kB
SwapFree:      4139332 kB
Dirty:           34140 kB
Writeback:           0 kB
AnonPages:       11508 kB
Mapped:          11776 kB
Slab:            67416 kB
PageTables:       4176 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181704 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= 62460 MiB
End job on node030 at 2010-06-25 18:58:45