Trace number 2669327

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) 35.9975 38.1426

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-woodw.opb
MD5SUM39878dc7ef96e07e426f9432943c6054
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark20.9618
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables252150
Total number of constraints1098
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 constraints1098
Minimum length of a constraint30
Maximum length of a constraint43590
Number of terms in the objective function 120
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 4294967292
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 10737418240000
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 556588032595749
Number of bits of the biggest sum of numbers49
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
4.40/4.41	c constraints 1098/0 clauses 0/0 units 20
4.40/4.41	c vars 252150
4.40/4.41	c objective 120 + 0

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-2669327-1276554214/watcher-2669327-1276554214 -o /tmp/evaluation-result-2669327-1276554214/solver-2669327-1276554214 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669327-1276554214.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: 1.85 1.94 1.64 3/106 30823
/proc/meminfo: memFree=1681000/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=2496 CPUtime=0
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 306 0 0 0 0 0 0 0 20 0 1 0 31023029 2555904 229 1992294400 134512640 136485738 4293512176 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30823/statm: 624 229 153 482 0 140 0

[startup+0.0107361 s]
/proc/loadavg: 1.85 1.94 1.64 3/106 30823
/proc/meminfo: memFree=1681000/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=2496 CPUtime=0
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 313 0 0 0 0 0 0 0 20 0 1 0 31023029 2555904 236 1992294400 134512640 136485738 4293512176 18446744073709551615 135559890 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30823/statm: 624 236 153 482 0 140 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2496

[startup+0.101747 s]
/proc/loadavg: 1.85 1.94 1.64 3/106 30823
/proc/meminfo: memFree=1681000/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=4288 CPUtime=0.1
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 748 0 0 0 10 0 0 0 20 0 1 0 31023029 4390912 671 1992294400 134512640 136485738 4293512176 18446744073709551615 135857078 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30823/statm: 1072 671 155 482 0 588 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4288

[startup+0.301773 s]
/proc/loadavg: 1.85 1.94 1.64 3/106 30823
/proc/meminfo: memFree=1681000/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=8516 CPUtime=0.29
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 1763 0 0 0 29 0 0 0 20 0 1 0 31023029 8720384 1653 1992294400 134512640 136485738 4293512176 18446744073709551615 135180337 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30823/statm: 2129 1653 155 482 0 1645 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8516

[startup+0.701824 s]
/proc/loadavg: 1.85 1.94 1.64 3/106 30823
/proc/meminfo: memFree=1681000/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=16908 CPUtime=0.69
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 3679 0 0 0 68 1 0 0 21 0 1 0 31023029 17313792 3569 1992294400 134512640 136485738 4293512176 18446744073709551615 135857078 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30823/statm: 4227 3569 155 482 0 3743 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16908

[startup+1.50193 s]
/proc/loadavg: 1.85 1.94 1.64 2/107 30824
/proc/meminfo: memFree=1661276/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=33532 CPUtime=1.49
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 7532 0 0 0 146 3 0 0 23 0 1 0 31023029 34336768 7423 1992294400 134512640 136485738 4293512176 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30823/statm: 8383 7424 155 482 0 7899 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33532

[startup+3.10014 s]
/proc/loadavg: 1.85 1.94 1.64 2/107 30824
/proc/meminfo: memFree=1639824/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=67188 CPUtime=3.09
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 15541 0 0 0 303 6 0 0 25 0 1 0 31023029 68800512 15091 1992294400 134512640 136485738 4293512176 18446744073709551615 135180355 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30823/statm: 16797 15091 157 482 0 16313 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 67188

[startup+6.30056 s]
/proc/loadavg: 1.78 1.93 1.64 2/107 30824
/proc/meminfo: memFree=1527232/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=219424 CPUtime=6.29
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 54366 0 0 0 606 23 0 0 25 0 1 0 31023029 224690176 51226 1992294400 134512640 136485738 4293512176 18446744073709551615 135681220 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30823/statm: 54856 51227 197 482 0 54372 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 219424

[startup+12.7004 s]
/proc/loadavg: 1.72 1.91 1.64 2/107 30824
/proc/meminfo: memFree=1141096/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=602592 CPUtime=12.69
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 156394 0 0 0 1206 63 0 0 25 0 1 0 31023029 617054208 144039 1992294400 134512640 136485738 4293512176 18446744073709551615 135350324 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30823/statm: 150648 144040 197 482 0 150164 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 602592

[startup+25.5011 s]
/proc/loadavg: 1.56 1.87 1.63 2/107 30824
/proc/meminfo: memFree=436280/2059040 swapFree=4140260/4192956
[pid=30823] ppid=30821 vsize=1292580 CPUtime=25.49
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 341002 0 0 0 2407 142 0 0 25 0 1 0 31023029 1323601920 315308 1992294400 134512640 136485738 4293512176 18446744073709551615 134725671 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30823/statm: 323145 315308 197 482 0 322661 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1292580



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+35.956 s]
/proc/loadavg: 1.55 1.85 1.62 3/107 30826
/proc/meminfo: memFree=15420/2059040 swapFree=4139744/4192956
[pid=30823] ppid=30821 vsize=1859948 CPUtime=35.81
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4202496 493967 0 0 0 3368 213 0 0 25 0 1 0 31023029 1904586752 443601 1992294400 134512640 136485738 4293512176 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 11
/proc/30823/statm: 464987 443601 197 482 0 464503 0
Current children cumulated CPU time (s) 35.81
Current children cumulated vsize (KiB) 1859948

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -30823

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

[startup+36.6015 s]
/proc/loadavg: 1.55 1.85 1.62 1/108 30827
/proc/meminfo: memFree=23596/2059040 swapFree=4139744/4192956
[pid=30823] ppid=30821 vsize=1859948 CPUtime=35.81
/proc/30823/stat : 30823 (pbct) S 30821 30823 30087 0 -1 4194304 493971 0 0 0 3368 213 0 0 25 0 1 0 31023029 1904586752 443605 1992294400 134512640 136485738 4293512176 18446744073709551615 135319262 0 16384 4096 16387 18446604437863163200 0 0 17 1 0 0 11
/proc/30823/statm: 464987 443605 198 482 0 464503 0
Current children cumulated CPU time (s) 35.81
Current children cumulated vsize (KiB) 1859948

[startup+37.4076 s]
/proc/loadavg: 1.55 1.85 1.62 1/108 30827
/proc/meminfo: memFree=23596/2059040 swapFree=4139744/4192956
[pid=30823] ppid=30821 vsize=1859948 CPUtime=35.81
/proc/30823/stat : 30823 (pbct) S 30821 30823 30087 0 -1 4194304 493971 0 0 0 3368 213 0 0 25 0 1 0 31023029 1904586752 443605 1992294400 134512640 136485738 4293512176 18446744073709551615 135319262 0 16384 4096 16387 18446604437863163200 0 0 17 1 0 0 11
/proc/30823/statm: 464987 443605 198 482 0 464503 0
Current children cumulated CPU time (s) 35.81
Current children cumulated vsize (KiB) 1859948

[startup+37.8007 s]
/proc/loadavg: 1.55 1.85 1.62 1/108 30827
/proc/meminfo: memFree=23596/2059040 swapFree=4139744/4192956
[pid=30823] ppid=30821 vsize=1859948 CPUtime=35.81
/proc/30823/stat : 30823 (pbct) S 30821 30823 30087 0 -1 4194304 493971 0 0 0 3368 213 0 0 25 0 1 0 31023029 1904586752 443605 1992294400 134512640 136485738 4293512176 18446744073709551615 135319262 0 16384 4096 16387 18446604437863163200 0 0 17 1 0 0 11
/proc/30823/statm: 464987 443605 198 482 0 464503 0
Current children cumulated CPU time (s) 35.81
Current children cumulated vsize (KiB) 1859948

[startup+38.0007 s]
/proc/loadavg: 1.55 1.85 1.62 1/108 30827
/proc/meminfo: memFree=23596/2059040 swapFree=4139744/4192956
[pid=30823] ppid=30821 vsize=0 CPUtime=35.85
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4195332 493971 0 0 0 3368 217 0 0 18 0 1 0 31023029 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 11
/proc/30823/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 35.85
Current children cumulated vsize (KiB) 0

[startup+38.1007 s]
/proc/loadavg: 1.55 1.85 1.62 1/108 30827
/proc/meminfo: memFree=23596/2059040 swapFree=4139744/4192956
[pid=30823] ppid=30821 vsize=0 CPUtime=35.95
/proc/30823/stat : 30823 (pbct) R 30821 30823 30087 0 -1 4195332 493971 0 0 0 3368 227 0 0 18 0 1 0 31023029 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 11
/proc/30823/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 35.95
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 38.1426
CPU time (s): 35.9975
CPU user time (s): 33.6829
CPU system time (s): 2.31465
CPU usage (%): 94.3762
Max. virtual memory (cumulated for all children) (KiB): 1875940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.6829
system time used= 2.31465
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 493971
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= 4
involuntary context switches= 460

runsolver used 0.068989 second user time and 0.19697 second system time

The end

Launcher Data 

Begin job on node013 at 2010-06-15 00:23:35
IDJOB=2669327
IDBENCH=2439
IDSOLVER=1170
FILE ID=node013/2669327-1276554214
PBS_JOBID= 11173481
Free space on /tmp= 62488 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-woodw.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669327-1276554214/watcher-2669327-1276554214 -o /tmp/evaluation-result-2669327-1276554214/solver-2669327-1276554214 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669327-1276554214.opb

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

MD5SUM BENCH= 39878dc7ef96e07e426f9432943c6054
RANDOM SEED=1520999626

node013.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		: 3000.253
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	: 6000.50
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		: 3000.253
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1681404 kB
Buffers:        143920 kB
Cached:         150208 kB
SwapCached:       6068 kB
Active:         128124 kB
Inactive:       179664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1681404 kB
SwapTotal:     4192956 kB
SwapFree:      4140260 kB
Dirty:           20184 kB
Writeback:           0 kB
AnonPages:       11956 kB
Mapped:          13024 kB
Slab:            48016 kB
PageTables:       3992 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181336 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= 62484 MiB
End job on node013 at 2010-06-15 00:24:14