Trace number 2681709

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 fixedOPT-6 2.25766 2.25847

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_25_5.opb
MD5SUM20ea76261c79ba7825c3d1b1d13450a8
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 benchmark0.051991
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 constraint35
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)1464
Sum of products size (including duplicates)2928
Number of different products732
Sum of products size1464

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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.01	c constraints 782/0 clauses 732/0 units 0
0.00/0.01	c vars 50
0.00/0.01	c objective 50 + -50
0.19/0.27	c 0.247962 23.7578 0 733
0.19/0.27	o 0
0.19/0.28	c 0.26096 24.1523 0 1637
0.19/0.28	o -1
0.29/0.39	c 0.358945 24.4023 0 5459
0.29/0.39	o -2
0.39/0.40	c 0.367944 24.4023 0 5636
0.39/0.40	o -3
0.39/0.41	c 0.384941 24.4023 4 5861
0.39/0.41	o -4
1.39/1.46	c 1.42678 24.4023 4 7103
1.39/1.46	o -5
1.79/1.86	c 1.82572 24.4023 69 7638
1.79/1.86	o -6
2.10/2.16	c 2.11968 24.4023 666 8356
2.10/2.16	s OPTIMUM FOUND
2.10/2.16	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-2681709-1277502677/watcher-2681709-1277502677 -o /tmp/evaluation-result-2681709-1277502677/solver-2681709-1277502677 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681709-1277502677.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: 1.02 1.02 1.00 3/106 30581
/proc/meminfo: memFree=1847536/2059040 swapFree=4140192/4192956
[pid=30581] ppid=30579 vsize=2268 CPUtime=0
/proc/30581/stat : 30581 (pbct) R 30579 30581 29839 0 -1 4202496 300 0 0 0 0 0 0 0 20 0 1 0 91560574 2322432 219 1992294400 134512640 136421960 4289702368 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30581/statm: 567 219 146 467 0 98 0

[startup+0.0867739 s]
/proc/loadavg: 1.02 1.02 1.00 3/106 30581
/proc/meminfo: memFree=1847536/2059040 swapFree=4140192/4192956
[pid=30581] ppid=30579 vsize=8896 CPUtime=0.08
/proc/30581/stat : 30581 (pbct) R 30579 30581 29839 0 -1 4202496 1934 0 0 0 7 1 0 0 20 0 1 0 91560574 9109504 1853 1992294400 134512640 136421960 4289702368 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30581/statm: 2224 1854 194 467 0 1755 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 8896

[startup+0.100775 s]
/proc/loadavg: 1.02 1.02 1.00 3/106 30581
/proc/meminfo: memFree=1847536/2059040 swapFree=4140192/4192956
[pid=30581] ppid=30579 vsize=10240 CPUtime=0.09
/proc/30581/stat : 30581 (pbct) R 30579 30581 29839 0 -1 4202496 2214 0 0 0 8 1 0 0 20 0 1 0 91560574 10485760 2133 1992294400 134512640 136421960 4289702368 18446744073709551615 135810658 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30581/statm: 2560 2134 194 467 0 2091 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10240

[startup+0.300797 s]
/proc/loadavg: 1.02 1.02 1.00 3/106 30581
/proc/meminfo: memFree=1847536/2059040 swapFree=4140192/4192956
[pid=30581] ppid=30579 vsize=24984 CPUtime=0.29
/proc/30581/stat : 30581 (pbct) R 30579 30581 29839 0 -1 4202496 5953 0 0 0 27 2 0 0 20 0 1 0 91560574 25583616 5690 1992294400 134512640 136421960 4289702368 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30581/statm: 6246 5690 237 467 0 5777 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 24984

[startup+0.70084 s]
/proc/loadavg: 1.02 1.02 1.00 3/106 30581
/proc/meminfo: memFree=1847536/2059040 swapFree=4140192/4192956
[pid=30581] ppid=30579 vsize=24984 CPUtime=0.69
/proc/30581/stat : 30581 (pbct) R 30579 30581 29839 0 -1 4202496 5956 0 0 0 66 3 0 0 20 0 1 0 91560574 25583616 5690 1992294400 134512640 136421960 4289702368 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30581/statm: 6246 5690 237 467 0 5777 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 24984

[startup+1.50093 s]
/proc/loadavg: 1.02 1.02 1.00 2/107 30582
/proc/meminfo: memFree=1825580/2059040 swapFree=4140192/4192956
[pid=30581] ppid=30579 vsize=24984 CPUtime=1.49
/proc/30581/stat : 30581 (pbct) R 30579 30581 29839 0 -1 4202496 5957 0 0 0 146 3 0 0 22 0 1 0 91560574 25583616 5690 1992294400 134512640 136421960 4289702368 18446744073709551615 134620057 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30581/statm: 6246 5690 237 467 0 5777 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 24984

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

[startup+1.90097 s]
/proc/loadavg: 1.02 1.02 1.00 2/107 30582
/proc/meminfo: memFree=1825580/2059040 swapFree=4140192/4192956
[pid=30581] ppid=30579 vsize=24984 CPUtime=1.89
/proc/30581/stat : 30581 (pbct) R 30579 30581 29839 0 -1 4202496 5958 0 0 0 186 3 0 0 25 0 1 0 91560574 25583616 5690 1992294400 134512640 136421960 4289702368 18446744073709551615 135018961 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30581/statm: 6246 5690 237 467 0 5777 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 24984

[startup+2.10099 s]
/proc/loadavg: 1.02 1.02 1.00 2/107 30582
/proc/meminfo: memFree=1825332/2059040 swapFree=4140192/4192956
[pid=30581] ppid=30579 vsize=24984 CPUtime=2.1
/proc/30581/stat : 30581 (pbct) R 30579 30581 29839 0 -1 4202496 5958 0 0 0 206 4 0 0 25 0 1 0 91560574 25583616 5690 1992294400 134512640 136421960 4289702368 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30581/statm: 6246 5690 237 467 0 5777 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 24984

[startup+2.209 s]
/proc/loadavg: 1.02 1.02 1.00 2/107 30582
/proc/meminfo: memFree=1825332/2059040 swapFree=4140192/4192956
[pid=30581] ppid=30579 vsize=23232 CPUtime=2.2
/proc/30581/stat : 30581 (pbct) R 30579 30581 29839 0 -1 4202496 5962 0 0 0 216 4 0 0 25 0 1 0 91560574 23789568 5362 1992294400 134512640 136421960 4289702368 18446744073709551615 135818225 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30581/statm: 5808 5362 240 467 0 5339 0
Current children cumulated CPU time (s) 2.2
Current children cumulated vsize (KiB) 23232

Child status: 0
Real time (s): 2.25847
CPU time (s): 2.25766
CPU user time (s): 2.21266
CPU system time (s): 0.044993
CPU usage (%): 99.9639
Max. virtual memory (cumulated for all children) (KiB): 24984

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.21266
system time used= 0.044993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5963
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= 6

runsolver used 0.007998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node037 at 2010-06-25 23:51:17
IDJOB=2681709
IDBENCH=48198
IDSOLVER=1192
FILE ID=node037/2681709-1277502677
PBS_JOBID= 11190588
Free space on /tmp= 62492 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_25_5.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681709-1277502677/watcher-2681709-1277502677 -o /tmp/evaluation-result-2681709-1277502677/solver-2681709-1277502677 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681709-1277502677.opb

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

MD5SUM BENCH= 20ea76261c79ba7825c3d1b1d13450a8
RANDOM SEED=1578188586

node037.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		: 3000.248
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	: 6000.49
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		: 3000.248
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	: 5599.55
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1847940 kB
Buffers:         32132 kB
Cached:          83112 kB
SwapCached:       5520 kB
Active:          68120 kB
Inactive:        60140 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1847940 kB
SwapTotal:     4192956 kB
SwapFree:      4140192 kB
Dirty:            1896 kB
Writeback:           0 kB
AnonPages:       11596 kB
Mapped:          11884 kB
Slab:            60636 kB
PageTables:       4232 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181288 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= 62488 MiB
End job on node037 at 2010-06-25 23:51:20