Trace number 2683102

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) 25.979 25.9844

General information on the benchmark

Name/OPT-BIGINT-LIN/aries-da_nrp/
normalized-aries-da_network_500_3__212_366__64.opb
MD5SUMcc5cebabc199f10f08063890a2dc59f2
Bench CategoryOPT-BIGINT-LIN (optimisation, big integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark113351
Best CPU time to get the best result obtained on this benchmark1800.62
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables96498
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 constraint64
Maximum length of a constraint1345
Number of terms in the objective function 96000
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 3283863936
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 114804
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 3283863936
Number of bits of the biggest sum of numbers32
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
1.09/1.14	c constraints 2000/0 clauses 0/0 units 0
1.09/1.14	c vars 96498
1.09/1.15	c objective 96000 + 0
25.79/25.80	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-2683102-1277506779/watcher-2683102-1277506779 -o /tmp/evaluation-result-2683102-1277506779/solver-2683102-1277506779 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2683102-1277506779.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 2/106 26263
/proc/meminfo: memFree=1801596/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=2416 CPUtime=0
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 293 0 0 0 0 0 0 0 20 0 1 0 124333341 2473984 212 1992294400 134512640 136421960 4288756896 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26263/statm: 604 212 135 467 0 135 0

[startup+0.109444 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 26263
/proc/meminfo: memFree=1801596/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=5864 CPUtime=0.1
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 1363 0 0 0 10 0 0 0 20 0 1 0 124333341 6004736 909 1992294400 134512640 136421960 4288756896 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26263/statm: 1466 909 135 467 0 997 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5864

[startup+0.200452 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 26263
/proc/meminfo: memFree=1801596/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=9492 CPUtime=0.19
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 2499 0 0 0 18 1 0 0 20 0 1 0 124333341 9719808 1595 1992294400 134512640 136421960 4288756896 18446744073709551615 135809771 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26263/statm: 2373 1595 135 467 0 1904 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 9492

[startup+0.300459 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 26263
/proc/meminfo: memFree=1801596/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=9492 CPUtime=0.29
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 2640 0 0 0 28 1 0 0 20 0 1 0 124333341 9719808 1736 1992294400 134512640 136421960 4288756896 18446744073709551615 135159042 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26263/statm: 2373 1736 137 467 0 1904 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9492

[startup+0.700491 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 26263
/proc/meminfo: memFree=1801596/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=19088 CPUtime=0.69
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 4923 0 0 0 67 2 0 0 21 0 1 0 124333341 19546112 4019 1992294400 134512640 136421960 4288756896 18446744073709551615 135372755 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26263/statm: 4772 4019 141 467 0 4303 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19088

[startup+1.50055 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 26264
/proc/meminfo: memFree=1775176/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=59840 CPUtime=1.49
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 15142 0 0 0 142 7 0 0 23 0 1 0 124333341 61276160 14238 1992294400 134512640 136421960 4288756896 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26263/statm: 14960 14239 193 467 0 14491 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 59840

[startup+3.10068 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 26264
/proc/meminfo: memFree=1694700/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=176140 CPUtime=3.09
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 45346 0 0 0 290 19 0 0 25 0 1 0 124333341 180367360 42321 1992294400 134512640 136421960 4288756896 18446744073709551615 135818268 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26263/statm: 44035 42322 193 467 0 43566 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 176140

[startup+6.30094 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 26264
/proc/meminfo: memFree=1469144/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=390632 CPUtime=6.29
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 101870 0 0 0 582 47 0 0 25 0 1 0 124333341 400007168 95896 1992294400 134512640 136421960 4288756896 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26263/statm: 97658 95897 193 467 0 97189 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 390632

[startup+12.7014 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 26264
/proc/meminfo: memFree=1024976/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=829188 CPUtime=12.68
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 220195 0 0 0 1170 98 0 0 25 0 1 0 124333341 849088512 206212 1992294400 134512640 136421960 4288756896 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26263/statm: 207297 206214 193 467 0 206828 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 829188

[startup+25.5005 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 26266
/proc/meminfo: memFree=31240/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=1824392 CPUtime=25.48
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 482983 0 0 0 2346 202 0 0 25 0 1 0 124333341 1868177408 442444 1992294400 134512640 136421960 4288756896 18446744073709551615 134922427 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26263/statm: 456098 442444 203 467 0 455629 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1824392



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+25.8005 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 26266
/proc/meminfo: memFree=13136/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=1844596 CPUtime=25.79
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4202496 487371 0 0 0 2375 204 0 0 25 0 1 0 124333341 1888866304 446454 1992294400 134512640 136421960 4288756896 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26263/statm: 461149 446455 210 467 0 460680 0
Current children cumulated CPU time (s) 25.79
Current children cumulated vsize (KiB) 1844596

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

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

[startup+25.9085 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 26266
/proc/meminfo: memFree=13136/2059040 swapFree=4136400/4192956
[pid=26263] ppid=26261 vsize=0 CPUtime=25.89
/proc/26263/stat : 26263 (pbct) R 26261 26263 26201 0 -1 4194308 487378 0 0 0 2375 214 0 0 25 0 1 0 124333341 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/26263/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 25.89
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 25.9844
CPU time (s): 25.979
CPU user time (s): 23.7534
CPU system time (s): 2.22566
CPU usage (%): 99.9793
Max. virtual memory (cumulated for all children) (KiB): 1844596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.7534
system time used= 2.22566
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 487378
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= 45

runsolver used 0.049992 second user time and 0.12998 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-26 00:59:39
IDJOB=2683102
IDBENCH=71876
IDSOLVER=1192
FILE ID=node026/2683102-1277506779
PBS_JOBID= 11190637
Free space on /tmp= 62472 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__64.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683102-1277506779/watcher-2683102-1277506779 -o /tmp/evaluation-result-2683102-1277506779/solver-2683102-1277506779 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2683102-1277506779.opb

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

MD5SUM BENCH= cc5cebabc199f10f08063890a2dc59f2
RANDOM SEED=710964629

node026.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1802116 kB
Buffers:         50136 kB
Cached:         109388 kB
SwapCached:       9016 kB
Active:          62916 kB
Inactive:       109612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1802116 kB
SwapTotal:     4192956 kB
SwapFree:      4136400 kB
Dirty:            5960 kB
Writeback:           0 kB
AnonPages:       11540 kB
Mapped:           8428 kB
Slab:            62496 kB
PageTables:       4240 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181864 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= 62472 MiB
End job on node026 at 2010-06-26 01:00:07