Trace number 2668716

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) 33.8768 35.8973

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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
9.69/9.76	c constraints 19275/0 clauses 0/0 units 10
9.69/9.76	c vars 1935
9.69/9.76	c objective 115 + -1853482035

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-2668716-1276527673/watcher-2668716-1276527673 -o /tmp/evaluation-result-2668716-1276527673/solver-2668716-1276527673 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668716-1276527673.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 1.08 3/106 30710
/proc/meminfo: memFree=1819852/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=2208 CPUtime=0
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 274 0 0 0 0 0 0 0 18 0 1 0 26424103 2260992 197 1992294400 134512640 136485738 4290152768 18446744073709551615 135177505 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30710/statm: 552 197 157 482 0 68 0

[startup+0.084902 s]
/proc/loadavg: 0.93 0.98 1.08 3/106 30710
/proc/meminfo: memFree=1819852/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=3132 CPUtime=0.08
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 495 0 0 0 8 0 0 0 20 0 1 0 26424103 3207168 418 1992294400 134512640 136485738 4290152768 18446744073709551615 135177522 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30710/statm: 783 419 157 482 0 299 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3132

[startup+0.101903 s]
/proc/loadavg: 0.93 0.98 1.08 3/106 30710
/proc/meminfo: memFree=1819852/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=3264 CPUtime=0.09
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 541 0 0 0 9 0 0 0 20 0 1 0 26424103 3342336 464 1992294400 134512640 136485738 4290152768 18446744073709551615 135848128 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30710/statm: 816 464 157 482 0 332 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3264

[startup+0.301923 s]
/proc/loadavg: 0.93 0.98 1.08 3/106 30710
/proc/meminfo: memFree=1819852/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=5508 CPUtime=0.29
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 1078 0 0 0 29 0 0 0 20 0 1 0 26424103 5640192 1001 1992294400 134512640 136485738 4290152768 18446744073709551615 135857072 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30710/statm: 1377 1001 157 482 0 893 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5508

[startup+0.70196 s]
/proc/loadavg: 0.93 0.98 1.08 3/106 30710
/proc/meminfo: memFree=1819852/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=9996 CPUtime=0.69
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 2220 0 0 0 68 1 0 0 20 0 1 0 26424103 10235904 2143 1992294400 134512640 136485738 4290152768 18446744073709551615 135856828 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30710/statm: 2499 2143 157 482 0 2015 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9996

[startup+1.50104 s]
/proc/loadavg: 0.93 0.98 1.08 2/107 30711
/proc/meminfo: memFree=1808064/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=21084 CPUtime=1.49
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 4988 0 0 0 147 2 0 0 23 0 1 0 26424103 21590016 4911 1992294400 134512640 136485738 4290152768 18446744073709551615 135411146 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30710/statm: 5271 4911 157 482 0 4787 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 21084

[startup+3.10119 s]
/proc/loadavg: 0.93 0.98 1.08 2/107 30711
/proc/meminfo: memFree=1790828/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=48672 CPUtime=3.09
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 11881 0 0 0 303 6 0 0 25 0 1 0 26424103 49840128 11804 1992294400 134512640 136485738 4290152768 18446744073709551615 135177462 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30710/statm: 12168 11804 157 482 0 11684 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 48672

[startup+6.3015 s]
/proc/loadavg: 0.93 0.98 1.08 2/107 30711
/proc/meminfo: memFree=1731928/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=105348 CPUtime=6.29
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 26032 0 0 0 614 15 0 0 25 0 1 0 26424103 107876352 25955 1992294400 134512640 136485738 4290152768 18446744073709551615 135415726 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30710/statm: 26337 25956 157 482 0 25853 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 105348

[startup+12.7011 s]
/proc/loadavg: 0.94 0.98 1.08 2/107 30711
/proc/meminfo: memFree=1493724/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=375284 CPUtime=12.69
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 96507 0 0 0 1222 47 0 0 25 0 1 0 26424103 384290816 93388 1992294400 134512640 136485738 4290152768 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30710/statm: 93821 93389 197 482 0 93337 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 375284

[startup+25.5013 s]
/proc/loadavg: 0.95 0.98 1.08 2/107 30711
/proc/meminfo: memFree=553680/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=1318972 CPUtime=25.48
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 345645 0 0 0 2399 149 0 0 25 0 1 0 26424103 1350627328 321710 1992294400 134512640 136485738 4290152768 18446744073709551615 134802743 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30710/statm: 329743 321711 197 482 0 329259 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1318972



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+33.7095 s]
/proc/loadavg: 0.96 0.98 1.08 2/107 30711
/proc/meminfo: memFree=10812/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=1846616 CPUtime=33.69
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4202496 487869 0 0 0 3162 207 0 0 25 0 1 0 26424103 1890934784 459706 1992294400 134512640 136485738 4290152768 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30710/statm: 461654 459707 197 482 0 461170 0
Current children cumulated CPU time (s) 33.69
Current children cumulated vsize (KiB) 1846616

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -30710

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

[startup+35.0013 s]
/proc/loadavg: 0.96 0.98 1.08 1/108 30712
/proc/meminfo: memFree=10184/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=1846616 CPUtime=33.69
/proc/30710/stat : 30710 (pbct) S 30708 30710 30054 0 -1 4194304 487876 0 0 0 3162 207 0 0 25 0 1 0 26424103 1890934784 459713 1992294400 134512640 136485738 4290152768 18446744073709551615 135319262 0 16384 4096 16387 18446604437830678656 0 0 17 1 0 0 0
/proc/30710/statm: 461654 459713 198 482 0 461170 0
Current children cumulated CPU time (s) 33.69
Current children cumulated vsize (KiB) 1846616

[startup+35.4013 s]
/proc/loadavg: 0.96 0.98 1.08 1/108 30712
/proc/meminfo: memFree=10184/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=1846616 CPUtime=33.69
/proc/30710/stat : 30710 (pbct) S 30708 30710 30054 0 -1 4194304 487876 0 0 0 3162 207 0 0 25 0 1 0 26424103 1890934784 459713 1992294400 134512640 136485738 4290152768 18446744073709551615 135319262 0 16384 4096 16387 18446604437830678656 0 0 17 1 0 0 0
/proc/30710/statm: 461654 459713 198 482 0 461170 0
Current children cumulated CPU time (s) 33.69
Current children cumulated vsize (KiB) 1846616

[startup+35.8003 s]
/proc/loadavg: 0.96 0.98 1.08 1/108 30712
/proc/meminfo: memFree=10184/2059040 swapFree=4140228/4192956
[pid=30710] ppid=30708 vsize=0 CPUtime=33.77
/proc/30710/stat : 30710 (pbct) R 30708 30710 30054 0 -1 4195332 487876 0 0 0 3162 215 0 0 18 0 1 0 26424103 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/30710/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 33.77
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 35.8973
CPU time (s): 33.8768
CPU user time (s): 31.6202
CPU system time (s): 2.25666
CPU usage (%): 94.3715
Max. virtual memory (cumulated for all children) (KiB): 1846616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.6202
system time used= 2.25666
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 487876
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= 113

runsolver used 0.051992 second user time and 0.19297 second system time

The end

Launcher Data 

Begin job on node018 at 2010-06-14 17:01:18
IDJOB=2668716
IDBENCH=2318
IDSOLVER=1170
FILE ID=node018/2668716-1276527673
PBS_JOBID= 11173438
Free space on /tmp= 62336 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-neos13.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668716-1276527673/watcher-2668716-1276527673 -o /tmp/evaluation-result-2668716-1276527673/solver-2668716-1276527673 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668716-1276527673.opb

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

MD5SUM BENCH= 1218478b67ec647ce24db44195ab22fa
RANDOM SEED=196617079

node018.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		: 3000.248
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		: 3000.248
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1820132 kB
Buffers:         12256 kB
Cached:         136388 kB
SwapCached:       5688 kB
Active:         112840 kB
Inactive:        48192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1820132 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:           37124 kB
Writeback:           0 kB
AnonPages:       10980 kB
Mapped:          12764 kB
Slab:            55748 kB
PageTables:       3980 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180580 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= 62332 MiB
End job on node018 at 2010-06-14 17:01:54