Trace number 2668521

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) 29.3495 29.3729

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos19.opb
MD5SUM1ef5c8e94b66b7ed63dffc6923ecd901
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-3
Best CPU time to get the best result obtained on this benchmark1798.31
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -3
Optimality of the best value was proved NO
Number of variables1041679
Total number of constraints127860
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)80
Number of constraints which are nor clauses,nor cardinality constraints127780
Minimum length of a constraint2
Maximum length of a constraint275
Number of terms in the objective function 1611
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 1611
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 24576
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 98256
Number of bits of the biggest sum of numbers17
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
9.68/9.74	c constraints 127860/0 clauses 0/0 units 0
9.68/9.74	c vars 1041679
9.68/9.74	c objective 1611 + -1611
29.18/29.20	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-2668521-1276437210/watcher-2668521-1276437210 -o /tmp/evaluation-result-2668521-1276437210/solver-2668521-1276437210 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668521-1276437210.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 0.98 0.99 2/106 22953
/proc/meminfo: memFree=1802592/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=2352 CPUtime=0
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 281 0 0 0 0 0 0 0 21 0 1 0 19323007 2408448 203 1992294400 134512640 136485738 4288330112 18446744073709551615 134541357 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22953/statm: 588 203 153 482 0 104 0

[startup+0.063224 s]
/proc/loadavg: 0.99 0.98 0.99 2/106 22953
/proc/meminfo: memFree=1802592/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=3672 CPUtime=0.05
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 614 0 0 0 5 0 0 0 21 0 1 0 19323007 3760128 536 1992294400 134512640 136485738 4288330112 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22953/statm: 918 536 156 482 0 434 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3672

[startup+0.10222 s]
/proc/loadavg: 0.99 0.98 0.99 2/106 22953
/proc/meminfo: memFree=1802592/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=4596 CPUtime=0.09
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 849 0 0 0 9 0 0 0 21 0 1 0 19323007 4706304 771 1992294400 134512640 136485738 4288330112 18446744073709551615 134524659 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22953/statm: 1149 772 156 482 0 665 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4596

[startup+0.301241 s]
/proc/loadavg: 0.99 0.98 0.99 2/106 22953
/proc/meminfo: memFree=1802592/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=9348 CPUtime=0.28
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 2047 0 0 0 28 0 0 0 22 0 1 0 19323007 9572352 1969 1992294400 134512640 136485738 4288330112 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22953/statm: 2337 1969 156 482 0 1853 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 9348

[startup+0.700286 s]
/proc/loadavg: 0.99 0.98 0.99 2/106 22953
/proc/meminfo: memFree=1802592/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=19008 CPUtime=0.68
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 4442 0 0 0 67 1 0 0 23 0 1 0 19323007 19464192 4364 1992294400 134512640 136485738 4288330112 18446744073709551615 135411146 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22953/statm: 4752 4364 156 482 0 4268 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 19008

[startup+1.50038 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22954
/proc/meminfo: memFree=1777164/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=38144 CPUtime=1.48
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 9237 0 0 0 143 5 0 0 25 0 1 0 19323007 39059456 9126 1992294400 134512640 136485738 4288330112 18446744073709551615 135857075 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22953/statm: 9536 9127 156 482 0 9052 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 38144

[startup+3.10055 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22954
/proc/meminfo: memFree=1751868/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=76548 CPUtime=3.08
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 18886 0 0 0 299 9 0 0 25 0 1 0 19323007 78385152 18710 1992294400 134512640 136485738 4288330112 18446744073709551615 135411160 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22953/statm: 19137 18710 156 482 0 18653 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 76548

[startup+6.3009 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22954
/proc/meminfo: memFree=1669408/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=161340 CPUtime=6.28
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 40108 0 0 0 609 19 0 0 25 0 1 0 19323007 165212160 39932 1992294400 134512640 136485738 4288330112 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22953/statm: 40335 39932 156 482 0 39851 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 161340

[startup+12.7006 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22954
/proc/meminfo: memFree=1358168/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=501560 CPUtime=12.69
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 127586 0 0 0 1203 66 0 0 25 0 1 0 19323007 513597440 124807 1992294400 134512640 136485738 4288330112 18446744073709551615 135350462 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22953/statm: 125390 124808 197 482 0 124906 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 501560

[startup+25.501 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22954
/proc/meminfo: memFree=299952/2059040 swapFree=4140380/4192956
[pid=22953] ppid=22951 vsize=1560704 CPUtime=25.48
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 405752 0 0 0 2351 197 0 0 25 0 1 0 19323007 1598160896 381530 1992294400 134512640 136485738 4288330112 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22953/statm: 390176 381531 197 482 0 389692 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1560704



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+29.2001 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22954
/proc/meminfo: memFree=10324/2059040 swapFree=4140228/4192956
[pid=22953] ppid=22951 vsize=1845216 CPUtime=29.18
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4202496 480265 0 0 0 2684 234 0 0 25 0 1 0 19323007 1889501184 455541 1992294400 134512640 136485738 4288330112 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/22953/statm: 461304 455542 197 482 0 460820 0
Current children cumulated CPU time (s) 29.18
Current children cumulated vsize (KiB) 1845216

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

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

[startup+29.3091 s]
/proc/loadavg: 0.99 0.98 0.99 2/107 22954
/proc/meminfo: memFree=10324/2059040 swapFree=4140228/4192956
[pid=22953] ppid=22951 vsize=0 CPUtime=29.28
/proc/22953/stat : 22953 (pbct) R 22951 22953 21207 0 -1 4194308 480276 0 0 0 2684 244 0 0 25 0 1 0 19323007 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/22953/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 29.28
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 29.3729
CPU time (s): 29.3495
CPU user time (s): 26.8439
CPU system time (s): 2.50562
CPU usage (%): 99.9206
Max. virtual memory (cumulated for all children) (KiB): 1845216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.8439
system time used= 2.50562
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 480276
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= 3
involuntary context switches= 91

runsolver used 0.040993 second user time and 0.163975 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-13 15:53:33
IDJOB=2668521
IDBENCH=1845
IDSOLVER=1170
FILE ID=node009/2668521-1276437210
PBS_JOBID= 11173311
Free space on /tmp= 62408 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos19.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668521-1276437210/watcher-2668521-1276437210 -o /tmp/evaluation-result-2668521-1276437210/solver-2668521-1276437210 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668521-1276437210.opb

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

MD5SUM BENCH= 1ef5c8e94b66b7ed63dffc6923ecd901
RANDOM SEED=1426426723

node009.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		: 3000.199
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	: 6000.39
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		: 3000.199
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:       1802988 kB
Buffers:         30476 kB
Cached:         146120 kB
SwapCached:       6004 kB
Active:          92796 kB
Inactive:        96520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1802988 kB
SwapTotal:     4192956 kB
SwapFree:      4140380 kB
Dirty:           37684 kB
Writeback:           0 kB
AnonPages:       10880 kB
Mapped:          13004 kB
Slab:            44820 kB
PageTables:       4008 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179572 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= 62404 MiB
End job on node009 at 2010-06-13 15:54:04