Trace number 2668127

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 0.1OPT-6 2.42763 2.42767

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_25_1.opb
MD5SUM9b1238456c70f4586134906da9731efc
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-6
Best CPU time to get the best result obtained on this benchmark0.044992
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -6
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints50
Minimum length of a constraint25
Maximum length of a constraint37
Number of terms in the objective function 50
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 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)1498
Sum of products size (including duplicates)2996
Number of different products749
Sum of products size1498

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

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
0.00/0.01	c constraints 799/0 clauses 749/0 units 0
0.00/0.01	c vars 50
0.00/0.01	c objective 50 + -50
0.29/0.30	c 0.276957 24.4492 0 1313
0.29/0.30	o -1
0.29/0.34	c 0.310952 24.8555 0 3276
0.29/0.34	o -2
0.29/0.35	c 0.319951 24.8555 1 3575
0.29/0.35	o -3
1.39/1.45	c 1.41179 24.8555 1 4881
1.39/1.45	o -4
1.39/1.48	c 1.44678 24.8555 1 4923
1.39/1.48	o -5
1.49/1.57	c 1.53477 24.8555 1 5012
1.49/1.57	o -6
2.30/2.33	c 2.28265 24.8555 727 6281
2.30/2.33	s OPTIMUM FOUND
2.30/2.33	v -x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28 -x29 x30 x31 -x32 x33 -x34 -x35 -x36 x37 -x38 x39 -x40 x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50

Verifier Data 

OK	-6

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668127-1276663560/watcher-2668127-1276663560 -o /tmp/evaluation-result-2668127-1276663560/solver-2668127-1276663560 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668127-1276663560.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: 0.92 0.99 0.99 3/106 14283
/proc/meminfo: memFree=1797856/2059040 swapFree=4164944/4192956
[pid=14283] ppid=14281 vsize=2340 CPUtime=0
/proc/14283/stat : 14283 (pbct) R 14281 14283 13855 0 -1 4202496 299 0 0 0 0 0 0 0 25 0 1 0 7651423 2396160 221 1992294400 134512640 136485738 4287370080 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/14283/statm: 585 221 156 482 0 101 0

[startup+0.108908 s]
/proc/loadavg: 0.92 0.99 0.99 3/106 14283
/proc/meminfo: memFree=1797856/2059040 swapFree=4164944/4192956
[pid=14283] ppid=14281 vsize=9796 CPUtime=0.1
/proc/14283/stat : 14283 (pbct) R 14281 14283 13855 0 -1 4202496 2124 0 0 0 9 1 0 0 25 0 1 0 7651423 10031104 2046 1992294400 134512640 136485738 4287370080 18446744073709551615 135688681 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/14283/statm: 2449 2046 198 482 0 1965 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 9796

[startup+0.200914 s]
/proc/loadavg: 0.92 0.99 0.99 3/106 14283
/proc/meminfo: memFree=1797856/2059040 swapFree=4164944/4192956
[pid=14283] ppid=14281 vsize=16544 CPUtime=0.19
/proc/14283/stat : 14283 (pbct) R 14281 14283 13855 0 -1 4202496 3745 0 0 0 17 2 0 0 25 0 1 0 7651423 16941056 3667 1992294400 134512640 136485738 4287370080 18446744073709551615 135916833 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/14283/statm: 4103 3634 198 482 0 3619 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 16544

[startup+0.300919 s]
/proc/loadavg: 0.92 0.99 0.99 3/106 14283
/proc/meminfo: memFree=1797856/2059040 swapFree=4164944/4192956
[pid=14283] ppid=14281 vsize=24872 CPUtime=0.29
/proc/14283/stat : 14283 (pbct) R 14281 14283 13855 0 -1 4202496 5926 0 0 0 27 2 0 0 25 0 1 0 7651423 25468928 5706 1992294400 134512640 136485738 4287370080 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/14283/statm: 6218 5706 226 482 0 5734 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 24872

[startup+0.700944 s]
/proc/loadavg: 0.92 0.99 0.99 3/106 14283
/proc/meminfo: memFree=1797856/2059040 swapFree=4164944/4192956
[pid=14283] ppid=14281 vsize=25448 CPUtime=0.69
/proc/14283/stat : 14283 (pbct) R 14281 14283 13855 0 -1 4202496 6051 0 0 0 66 3 0 0 25 0 1 0 7651423 26058752 5790 1992294400 134512640 136485738 4287370080 18446744073709551615 135047024 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/14283/statm: 6362 5790 244 482 0 5878 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 25448

[startup+1.50099 s]
/proc/loadavg: 0.92 0.99 0.99 2/107 14284
/proc/meminfo: memFree=1775404/2059040 swapFree=4164944/4192956
[pid=14283] ppid=14281 vsize=25448 CPUtime=1.49
/proc/14283/stat : 14283 (pbct) R 14281 14283 13855 0 -1 4202496 6054 0 0 0 146 3 0 0 25 0 1 0 7651423 26058752 5791 1992294400 134512640 136485738 4287370080 18446744073709551615 135024568 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/14283/statm: 6362 5791 244 482 0 5878 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 25448

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

[startup+1.601 s]
/proc/loadavg: 0.92 0.99 0.99 2/107 14284
/proc/meminfo: memFree=1775404/2059040 swapFree=4164944/4192956
[pid=14283] ppid=14281 vsize=25448 CPUtime=1.59
/proc/14283/stat : 14283 (pbct) R 14281 14283 13855 0 -1 4202496 6055 0 0 0 156 3 0 0 25 0 1 0 7651423 26058752 5791 1992294400 134512640 136485738 4287370080 18446744073709551615 134880498 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/14283/statm: 6362 5791 244 482 0 5878 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 25448

[startup+2.00102 s]
/proc/loadavg: 0.92 0.99 0.99 2/107 14284
/proc/meminfo: memFree=1775404/2059040 swapFree=4164944/4192956
[pid=14283] ppid=14281 vsize=25448 CPUtime=1.99
/proc/14283/stat : 14283 (pbct) R 14281 14283 13855 0 -1 4202496 6055 0 0 0 195 4 0 0 25 0 1 0 7651423 26058752 5791 1992294400 134512640 136485738 4287370080 18446744073709551615 135038308 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/14283/statm: 6362 5791 244 482 0 5878 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 25448

[startup+2.40105 s]
/proc/loadavg: 0.93 0.99 0.99 2/107 14284
/proc/meminfo: memFree=1775156/2059040 swapFree=4164944/4192956
[pid=14283] ppid=14281 vsize=22260 CPUtime=2.39
/proc/14283/stat : 14283 (pbct) R 14281 14283 13855 0 -1 4202496 6062 0 0 0 235 4 0 0 25 0 1 0 7651423 22794240 5269 1992294400 134512640 136485738 4287370080 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/14283/statm: 5565 5269 248 482 0 5081 0
Current children cumulated CPU time (s) 2.39
Current children cumulated vsize (KiB) 22260

Child status: 0
Real time (s): 2.42767
CPU time (s): 2.42763
CPU user time (s): 2.37764
CPU system time (s): 0.049992
CPU usage (%): 99.9984
Max. virtual memory (cumulated for all children) (KiB): 25448

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.37764
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6063
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= 7

runsolver used 0.006998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node029 at 2010-06-16 06:46:00
IDJOB=2668127
IDBENCH=48210
IDSOLVER=1170
FILE ID=node029/2668127-1276663560
PBS_JOBID= 11172475
Free space on /tmp= 62576 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_25_1.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668127-1276663560/watcher-2668127-1276663560 -o /tmp/evaluation-result-2668127-1276663560/solver-2668127-1276663560 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668127-1276663560.opb

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

MD5SUM BENCH= 9b1238456c70f4586134906da9731efc
RANDOM SEED=173415887

node029.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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1798252 kB
Buffers:         53204 kB
Cached:         108528 kB
SwapCached:       1508 kB
Active:          98044 kB
Inactive:        97764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1798252 kB
SwapTotal:     4192956 kB
SwapFree:      4164944 kB
Dirty:            1940 kB
Writeback:           0 kB
AnonPages:       32632 kB
Mapped:          15108 kB
Slab:            43360 kB
PageTables:       3940 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181752 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= 62572 MiB
End job on node029 at 2010-06-16 06:46:03