Trace number 2683107

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) 34.3948 34.4032

General information on the benchmark

Name/OPT-BIGINT-LIN/aries-da_nrp/
normalized-aries-da_network_500_3__212_366__512.opb
MD5SUM89e2fccd3e96863f0a3c5df934bf5217
Bench CategoryOPT-BIGINT-LIN (optimisation, big integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark378903
Best CPU time to get the best result obtained on this benchmark1801.79
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables768498
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 constraint512
Maximum length of a constraint10753
Number of terms in the objective function 768000
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 26270911488
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 114804
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 26270911488
Number of bits of the biggest sum of numbers35
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
9.90/9.92	c constraints 2000/0 clauses 0/0 units 0
9.90/9.92	c vars 768498
9.90/9.94	c objective 768000 + 0
34.21/34.22	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-2683107-1277506818/watcher-2683107-1277506818 -o /tmp/evaluation-result-2683107-1277506818/solver-2683107-1277506818 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2683107-1277506818.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 3/107 25452
/proc/meminfo: memFree=1796956/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=2416 CPUtime=0
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 293 0 0 0 0 0 0 0 18 0 1 0 124337763 2473984 212 1992294400 134512640 136421960 4291157120 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25452/statm: 604 212 135 467 0 135 0

[startup+0.0708811 s]
/proc/loadavg: 1.00 1.00 1.00 3/107 25452
/proc/meminfo: memFree=1796956/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=4008 CPUtime=0.06
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 837 0 0 0 6 0 0 0 20 0 1 0 124337763 4104192 609 1992294400 134512640 136421960 4291157120 18446744073709551615 135377240 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25452/statm: 1002 609 135 467 0 533 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4008

[startup+0.101883 s]
/proc/loadavg: 1.00 1.00 1.00 3/107 25452
/proc/meminfo: memFree=1796956/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=5864 CPUtime=0.09
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 1332 0 0 0 9 0 0 0 20 0 1 0 124337763 6004736 878 1992294400 134512640 136421960 4291157120 18446744073709551615 135378174 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25452/statm: 1466 878 135 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.300901 s]
/proc/loadavg: 1.00 1.00 1.00 3/107 25452
/proc/meminfo: memFree=1796956/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=10152 CPUtime=0.29
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 3014 0 0 0 29 0 0 0 20 0 1 0 124337763 10395648 2110 1992294400 134512640 136421960 4291157120 18446744073709551615 135372680 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25452/statm: 2538 2110 135 467 0 2069 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10152

[startup+0.700936 s]
/proc/loadavg: 1.00 1.00 1.00 3/107 25452
/proc/meminfo: memFree=1796956/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=34856 CPUtime=0.69
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 9254 0 0 0 66 3 0 0 21 0 1 0 124337763 35692544 6297 1992294400 134512640 136421960 4291157120 18446744073709551615 135818225 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25452/statm: 8714 6297 135 467 0 8245 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 34856

[startup+1.50101 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 25453
/proc/meminfo: memFree=1770536/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=59416 CPUtime=1.49
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 18683 0 0 0 142 7 0 0 23 0 1 0 124337763 60841984 10602 1992294400 134512640 136421960 4291157120 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25452/statm: 14854 10602 135 467 0 14385 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 59416

[startup+3.10116 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 25453
/proc/meminfo: memFree=1746480/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=64288 CPUtime=3.09
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 21289 0 0 0 300 9 0 0 25 0 1 0 124337763 65830912 13208 1992294400 134512640 136421960 4291157120 18446744073709551615 135818229 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25452/statm: 16072 13208 141 467 0 15603 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 64288

[startup+6.30144 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 25453
/proc/meminfo: memFree=1698368/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=140820 CPUtime=6.29
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 37406 0 0 0 612 17 0 0 25 0 1 0 124337763 144199680 29325 1992294400 134512640 136421960 4291157120 18446744073709551615 135372698 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25452/statm: 35205 29325 141 467 0 34736 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 140820

[startup+12.701 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 25453
/proc/meminfo: memFree=1430900/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=444876 CPUtime=12.69
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 114002 0 0 0 1216 53 0 0 25 0 1 0 124337763 455553024 103800 1992294400 134512640 136421960 4291157120 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25452/statm: 111219 103800 193 467 0 110750 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 444876

[startup+25.5012 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 25453
/proc/meminfo: memFree=547772/2059040 swapFree=4139776/4192956
[pid=25452] ppid=25450 vsize=1329128 CPUtime=25.49
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 348530 0 0 0 2394 155 0 0 25 0 1 0 124337763 1361027072 316879 1992294400 134512640 136421960 4291157120 18446744073709551615 135364006 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25452/statm: 332282 316880 193 467 0 331813 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1329128



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+34.202 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 25453
/proc/meminfo: memFree=9556/2059040 swapFree=4138980/4192956
[pid=25452] ppid=25450 vsize=1846992 CPUtime=34.21
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4202496 489262 0 0 0 3207 214 0 0 25 0 1 0 124337763 1891319808 452881 1992294400 134512640 136421960 4291157120 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25452/statm: 461748 452882 193 467 0 461279 0
Current children cumulated CPU time (s) 34.21
Current children cumulated vsize (KiB) 1846992

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

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

[startup+34.401 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 25453
/proc/meminfo: memFree=9556/2059040 swapFree=4138980/4192956
[pid=25452] ppid=25450 vsize=0 CPUtime=34.39
/proc/25452/stat : 25452 (pbct) R 25450 25452 25348 0 -1 4194308 489272 0 0 0 3207 232 0 0 25 0 1 0 124337763 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/25452/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.39
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 34.4032
CPU time (s): 34.3948
CPU user time (s): 32.0701
CPU system time (s): 2.32465
CPU usage (%): 99.9755
Max. virtual memory (cumulated for all children) (KiB): 1846992

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.0701
system time used= 2.32465
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 489272
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= 435

runsolver used 0.065989 second user time and 0.174973 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-26 01:00:20
IDJOB=2683107
IDBENCH=71881
IDSOLVER=1192
FILE ID=node025/2683107-1277506818
PBS_JOBID= 11190603
Free space on /tmp= 62272 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__512.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683107-1277506818/watcher-2683107-1277506818 -o /tmp/evaluation-result-2683107-1277506818/solver-2683107-1277506818 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2683107-1277506818.opb

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

MD5SUM BENCH= 89e2fccd3e96863f0a3c5df934bf5217
RANDOM SEED=1558156820

node025.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		: 3000.242
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		: 3000.242
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:       1797484 kB
Buffers:         35076 kB
Cached:         127444 kB
SwapCached:       5904 kB
Active:         104396 kB
Inactive:        71508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1797484 kB
SwapTotal:     4192956 kB
SwapFree:      4139776 kB
Dirty:           37384 kB
Writeback:           0 kB
AnonPages:       12028 kB
Mapped:          11856 kB
Slab:            63536 kB
PageTables:       4236 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182884 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= 62272 MiB
End job on node025 at 2010-06-26 01:00:57