Trace number 2669162

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 0.1Wrong Opt.-7668 26.222 26.2286

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-sentoy.opb
MD5SUMd0f46c7e79d3309033cc6b73ceacef6c
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-7772
Best CPU time to get the best result obtained on this benchmark0.126979
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -7772
Optimality of the best value was proved YES
Number of variables60
Total number of constraints30
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 constraints30
Minimum length of a constraint60
Maximum length of a constraint60
Number of terms in the objective function 60
Biggest coefficient in the objective function 974
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 9460
Number of bits of the sum of numbers in the objective function 14
Biggest number in a constraint 6000
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 26162
Number of bits of the biggest sum of numbers15
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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
0.00/0.00	c constraints 30/0 clauses 0/0 units 0
0.00/0.00	c vars 60
0.00/0.00	c objective 60 + -9460
0.09/0.11	c 0.114982 10.8242 1 68
0.09/0.12	o -1789
0.09/0.12	c 0.117982 11.2109 1 85
0.09/0.12	o -2843
0.09/0.12	c 0.120981 11.2109 1 103
0.09/0.12	o -3949
0.09/0.13	c 0.124981 11.2109 2 122
0.09/0.13	o -4689
0.09/0.13	c 0.12798 11.2109 2 144
0.09/0.13	o -5130
0.09/0.13	c 0.131979 11.2109 4 164
0.09/0.13	o -5132
0.09/0.14	c 0.136979 11.2109 8 183
0.09/0.14	o -5407
0.09/0.16	c 0.157975 11.2109 40 231
0.09/0.16	o -5424
0.19/0.20	c 0.19697 11.2109 96 300
0.19/0.20	o -5425
0.19/0.27	c 0.268959 11.2109 194 415
0.19/0.27	o -5611
0.29/0.35	c 0.336948 11.3398 305 548
0.29/0.35	o -5615
0.29/0.38	c 0.366944 11.3398 343 604
0.29/0.38	o -5940
0.29/0.39	c 0.374943 11.3398 355 630
0.29/0.39	o -5957
0.29/0.39	c 0.380942 11.3398 361 649
0.29/0.39	o -6009
0.39/0.42	c 0.402938 11.3398 402 705
0.39/0.42	o -6036
0.39/0.43	c 0.414936 11.3398 419 737
0.39/0.43	o -6092
0.79/0.83	c 0.792879 11.3398 1062 1436
0.79/0.83	o -6123
1.00/1.01	c 0.960853 11.4648 1323 1734
1.00/1.01	o -6663
1.10/1.16	c 1.10383 11.4648 876 1978
1.10/1.16	o -6821
1.29/1.31	c 1.25281 11.4648 1098 2225
1.29/1.31	o -6834
1.39/1.42	c 1.35479 11.4648 1269 2427
1.39/1.42	o -6872
1.49/1.53	c 1.45278 11.4648 770 2642
1.49/1.53	o -7056
1.89/1.93	c 1.84072 11.4648 1503 3426
1.89/1.93	o -7213
2.10/2.20	c 2.09368 11.4648 1229 3949
2.10/2.20	o -7219
2.20/2.27	c 2.15767 11.4648 705 4117
2.20/2.27	o -7284
2.49/2.51	c 2.38364 11.4648 1226 4665
2.49/2.51	o -7310
3.59/3.63	c 3.45347 11.4648 1115 6755
3.59/3.63	o -7490
3.59/3.64	c 3.45947 11.4648 1119 6775
3.59/3.64	o -7491
3.59/3.65	c 3.47047 11.4648 1133 6805
3.59/3.65	o -7514
3.59/3.66	c 3.48347 11.4648 1147 6833
3.59/3.66	o -7520
3.69/3.75	c 3.56046 11.4648 1279 6987
3.69/3.75	o -7530
4.79/4.87	c 4.6243 11.4648 1181 9127
4.79/4.87	o -7540
5.09/5.10	c 4.83826 11.4648 937 9622
5.09/5.10	o -7562
5.99/6.04	c 5.73813 11.4648 1352 11551
5.99/6.04	o -7568
7.19/7.25	c 6.86596 11.4648 721 13883
7.19/7.25	o -7577
7.39/7.49	c 7.08892 11.4648 1180 14373
7.39/7.49	o -7588
9.69/9.77	c 9.25759 11.4648 1373 19065
9.69/9.77	o -7599
11.29/11.37	c 10.7704 11.5898 1480 22223
11.29/11.37	o -7604
15.09/15.16	c 14.3708 11.5898 1726 30005
15.09/15.16	o -7667
20.59/20.60	c 19.55 11.5898 1512 41418
20.59/20.60	o -7668
26.09/26.19	c 24.8782 11.5898 35 53320
26.09/26.19	s OPTIMUM FOUND
26.09/26.19	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 -x51 x52 -x53 -x54 x55 -x56 -x57 -x58 x59 -x60

Verifier Data 

OK	-7668

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2669162-1276437382/watcher-2669162-1276437382 -o /tmp/evaluation-result-2669162-1276437382/solver-2669162-1276437382 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669162-1276437382.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 3/106 23120
/proc/meminfo: memFree=1870472/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=3120 CPUtime=0
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 467 0 0 0 0 0 0 0 20 0 1 0 19339964 3194880 390 1992294400 134512640 136485738 4291064240 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 780 392 197 482 0 296 0

[startup+0.031505 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23120
/proc/meminfo: memFree=1870472/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=5140 CPUtime=0.02
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 952 0 0 0 2 0 0 0 20 0 1 0 19339964 5263360 875 1992294400 134512640 136485738 4291064240 18446744073709551615 135082810 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 1285 876 197 482 0 801 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5140

[startup+0.101514 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23120
/proc/meminfo: memFree=1870472/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=10520 CPUtime=0.09
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2309 0 0 0 9 0 0 0 20 0 1 0 19339964 10772480 2232 1992294400 134512640 136485738 4291064240 18446744073709551615 134921808 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2630 2234 210 482 0 2146 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10520

[startup+0.301537 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23120
/proc/meminfo: memFree=1870472/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11608 CPUtime=0.29
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2572 0 0 0 28 1 0 0 20 0 1 0 19339964 11886592 2485 1992294400 134512640 136485738 4291064240 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2902 2485 243 482 0 2418 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11608

[startup+0.701579 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23120
/proc/meminfo: memFree=1870472/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11608 CPUtime=0.69
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2578 0 0 0 66 3 0 0 21 0 1 0 19339964 11886592 2485 1992294400 134512640 136485738 4291064240 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2902 2485 243 482 0 2418 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11608

[startup+1.50167 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23121
/proc/meminfo: memFree=1861412/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11736 CPUtime=1.49
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2592 0 0 0 142 7 0 0 23 0 1 0 19339964 12017664 2494 1992294400 134512640 136485738 4291064240 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2934 2494 243 482 0 2450 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11736

[startup+3.10084 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23121
/proc/meminfo: memFree=1861164/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11736 CPUtime=3.09
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2598 0 0 0 294 15 0 0 25 0 1 0 19339964 12017664 2495 1992294400 134512640 136485738 4291064240 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2934 2495 243 482 0 2450 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11736

[startup+6.3012 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23121
/proc/meminfo: memFree=1861040/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11736 CPUtime=6.29
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2614 0 0 0 598 31 0 0 25 0 1 0 19339964 12017664 2503 1992294400 134512640 136485738 4291064240 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2934 2503 243 482 0 2450 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11736

[startup+12.7009 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23121
/proc/meminfo: memFree=1860916/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11864 CPUtime=12.69
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2641 0 0 0 1203 66 0 0 25 0 1 0 19339964 12148736 2526 1992294400 134512640 136485738 4291064240 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2966 2526 243 482 0 2482 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11864

[startup+25.5013 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23123
/proc/meminfo: memFree=1860916/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11864 CPUtime=25.48
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2653 0 0 0 2421 127 0 0 25 0 1 0 19339964 12148736 2536 1992294400 134512640 136485738 4291064240 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2966 2536 243 482 0 2482 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 11864

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

[startup+25.9014 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23123
/proc/meminfo: memFree=1860916/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11864 CPUtime=25.89
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2653 0 0 0 2460 129 0 0 25 0 1 0 19339964 12148736 2536 1992294400 134512640 136485738 4291064240 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2966 2536 243 482 0 2482 0
Current children cumulated CPU time (s) 25.89
Current children cumulated vsize (KiB) 11864

[startup+26.1014 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23123
/proc/meminfo: memFree=1860916/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11864 CPUtime=26.09
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2653 0 0 0 2479 130 0 0 25 0 1 0 19339964 12148736 2536 1992294400 134512640 136485738 4291064240 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2966 2536 243 482 0 2482 0
Current children cumulated CPU time (s) 26.09
Current children cumulated vsize (KiB) 11864

[startup+26.2014 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23123
/proc/meminfo: memFree=1860916/2059040 swapFree=4140228/4192956
[pid=23120] ppid=23118 vsize=11212 CPUtime=26.18
/proc/23120/stat : 23120 (pbct) R 23118 23120 21207 0 -1 4202496 2658 0 0 0 2488 130 0 0 25 0 1 0 19339964 11481088 2393 1992294400 134512640 136485738 4291064240 18446744073709551615 135839925 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23120/statm: 2803 2393 247 482 0 2319 0
Current children cumulated CPU time (s) 26.18
Current children cumulated vsize (KiB) 11212

Child status: 0
Real time (s): 26.2286
CPU time (s): 26.222
CPU user time (s): 24.9132
CPU system time (s): 1.3088
CPU usage (%): 99.9749
Max. virtual memory (cumulated for all children) (KiB): 11864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.9132
system time used= 1.3088
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2659
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= 110

runsolver used 0.049992 second user time and 0.133979 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-13 15:56:22
IDJOB=2669162
IDBENCH=1857
IDSOLVER=1170
FILE ID=node009/2669162-1276437382
PBS_JOBID= 11173311
Free space on /tmp= 62444 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-sentoy.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669162-1276437382/watcher-2669162-1276437382 -o /tmp/evaluation-result-2669162-1276437382/solver-2669162-1276437382 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669162-1276437382.opb

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

MD5SUM BENCH= d0f46c7e79d3309033cc6b73ceacef6c
RANDOM SEED=1876459780

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:       1871000 kB
Buffers:          6480 kB
Cached:         104056 kB
SwapCached:       5328 kB
Active:          23248 kB
Inactive:        99332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1871000 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:            2040 kB
Writeback:           0 kB
AnonPages:       10932 kB
Mapped:          12828 kB
Slab:            43508 kB
PageTables:       4020 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180580 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= 62440 MiB
End job on node009 at 2010-06-13 15:56:48