Trace number 2683079

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) 29.6685 29.6785

General information on the benchmark

Name/OPT-BIGINT-LIN/aries-da_nrp/
normalized-aries-da_network_500_3__212_366__256.opb
MD5SUM236786dd2c62aa0c592a46a79d99b528
Bench CategoryOPT-BIGINT-LIN (optimisation, big integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark245667
Best CPU time to get the best result obtained on this benchmark1801.01
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables384498
Total number of constraints2000
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1502
Number of constraints which are nor clauses,nor cardinality constraints498
Minimum length of a constraint256
Maximum length of a constraint5377
Number of terms in the objective function 384000
Biggest coefficient in the objective function 114804
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 13135455744
Number of bits of the sum of numbers in the objective function 34
Biggest number in a constraint 114804
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 13135455744
Number of bits of the biggest sum of numbers34
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
4.49/4.50	c constraints 2000/0 clauses 0/0 units 0
4.49/4.50	c vars 384498
4.49/4.51	c objective 384000 + 0
29.49/29.50	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-2683079-1277506533/watcher-2683079-1277506533 -o /tmp/evaluation-result-2683079-1277506533/solver-2683079-1277506533 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2683079-1277506533.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: 0.99 0.97 0.99 3/105 31379
/proc/meminfo: memFree=1849036/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=2416 CPUtime=0
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 296 0 0 0 0 0 0 0 23 0 1 0 91947202 2473984 215 1992294400 134512640 136421960 4290256880 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31379/statm: 604 215 135 467 0 135 0

[startup+0.0350191 s]
/proc/loadavg: 0.99 0.97 0.99 3/105 31379
/proc/meminfo: memFree=1849036/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=3136 CPUtime=0.03
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 508 0 0 0 3 0 0 0 23 0 1 0 91947202 3211264 394 1992294400 134512640 136421960 4290256880 18446744073709551615 135818469 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31379/statm: 784 395 135 467 0 315 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3136

[startup+0.101024 s]
/proc/loadavg: 0.99 0.97 0.99 3/105 31379
/proc/meminfo: memFree=1849036/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=5864 CPUtime=0.09
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 1357 0 0 0 9 0 0 0 23 0 1 0 91947202 6004736 903 1992294400 134512640 136421960 4290256880 18446744073709551615 135818456 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31379/statm: 1466 903 135 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.301047 s]
/proc/loadavg: 0.99 0.97 0.99 3/105 31379
/proc/meminfo: memFree=1849036/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=15340 CPUtime=0.29
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 3990 0 0 0 28 1 0 0 23 0 1 0 91947202 15708160 3086 1992294400 134512640 136421960 4290256880 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31379/statm: 3835 3089 135 467 0 3366 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15340

[startup+0.701091 s]
/proc/loadavg: 0.99 0.97 0.99 3/105 31379
/proc/meminfo: memFree=1849036/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=30756 CPUtime=0.69
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 9417 0 0 0 66 3 0 0 25 0 1 0 91947202 31494144 5435 1992294400 134512640 136421960 4290256880 18446744073709551615 135830553 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31379/statm: 7689 5435 135 467 0 7220 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 30756

[startup+1.50118 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 31380
/proc/meminfo: memFree=1824476/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=35804 CPUtime=1.49
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 11216 0 0 0 145 4 0 0 25 0 1 0 91947202 36663296 7234 1992294400 134512640 136421960 4290256880 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31379/statm: 8951 7235 141 467 0 8482 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 35804

[startup+3.10036 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 31380
/proc/meminfo: memFree=1806372/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=78352 CPUtime=3.09
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 20504 0 0 0 301 8 0 0 25 0 1 0 91947202 80232448 16522 1992294400 134512640 136421960 4290256880 18446744073709551615 135806156 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31379/statm: 19588 16522 141 467 0 19119 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 78352

[startup+6.30073 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 31380
/proc/meminfo: memFree=1667368/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=265672 CPUtime=6.29
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 68229 0 0 0 600 29 0 0 25 0 1 0 91947202 272048128 62126 1992294400 134512640 136421960 4290256880 18446744073709551615 134541833 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31379/statm: 66418 62127 193 467 0 65949 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 265672

[startup+12.7004 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 31380
/proc/meminfo: memFree=1187984/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=734820 CPUtime=12.68
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 192326 0 0 0 1185 83 0 0 25 0 1 0 91947202 752455680 177133 1992294400 134512640 136421960 4290256880 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31379/statm: 183705 177133 193 467 0 183236 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 734820

[startup+25.5009 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 31380
/proc/meminfo: memFree=278444/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=1633492 CPUtime=25.48
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 431677 0 0 0 2371 177 0 0 25 0 1 0 91947202 1672695808 402468 1992294400 134512640 136421960 4290256880 18446744073709551615 134632344 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31379/statm: 408373 402468 193 467 0 407904 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1633492



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+29.5003 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 31380
/proc/meminfo: memFree=9736/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=1847184 CPUtime=29.49
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4202496 491390 0 0 0 2744 205 0 0 25 0 1 0 91947202 1891516416 459108 1992294400 134512640 136421960 4290256880 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31379/statm: 461796 459109 193 467 0 461327 0
Current children cumulated CPU time (s) 29.49
Current children cumulated vsize (KiB) 1847184

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

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

[startup+29.6084 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 31381
/proc/meminfo: memFree=1127092/2059040 swapFree=4139188/4192956
[pid=31379] ppid=31377 vsize=0 CPUtime=29.59
/proc/31379/stat : 31379 (pbct) R 31377 31379 31248 0 -1 4194308 491399 0 0 0 2744 215 0 0 25 0 1 0 91947202 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/31379/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 29.59
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 29.6785
CPU time (s): 29.6685
CPU user time (s): 27.4468
CPU system time (s): 2.22166
CPU usage (%): 99.9661
Max. virtual memory (cumulated for all children) (KiB): 1847184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.4468
system time used= 2.22166
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 491399
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= 29

runsolver used 0.057991 second user time and 0.150977 second system time

The end

Launcher Data 

Begin job on node085 at 2010-06-26 00:55:34
IDJOB=2683079
IDBENCH=71853
IDSOLVER=1192
FILE ID=node085/2683079-1277506533
PBS_JOBID= 11190598
Free space on /tmp= 121660 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB09/normalized-PB09/OPT-BIGINT-LIN/aries-da_nrp/normalized-aries-da_network_500_3__212_366__256.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683079-1277506533/watcher-2683079-1277506533 -o /tmp/evaluation-result-2683079-1277506533/solver-2683079-1277506533 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2683079-1277506533.opb

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

MD5SUM BENCH= 236786dd2c62aa0c592a46a79d99b528
RANDOM SEED=1103543718

node085.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		: 3000.221
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	: 6000.44
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		: 3000.221
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	: 5999.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1849440 kB
Buffers:         19612 kB
Cached:         106672 kB
SwapCached:       6304 kB
Active:          83524 kB
Inactive:        55452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1849440 kB
SwapTotal:     4192956 kB
SwapFree:      4139188 kB
Dirty:           19432 kB
Writeback:           0 kB
AnonPages:       11316 kB
Mapped:          11844 kB
Slab:            48736 kB
PageTables:       4108 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182168 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= 121656 MiB
End job on node085 at 2010-06-26 00:56:05