Trace number 2681648

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 fixedOPT2 2.95755 2.95873

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_4.opb
MD5SUMa45f8d339393416b6aacc4f79e0ac23e
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark1.18582
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
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 constraint26
Maximum length of a constraint38
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)1466
Sum of products size (including duplicates)2932
Number of different products1466
Sum of products size2932

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
0.00/0.02	c constraints 1466/0 clauses 1516/0 units 0
0.00/0.02	c vars 50
0.00/0.02	c objective 50 + 0
0.29/0.39	c 0.362944 34.1602 1 1465
0.29/0.39	o 5
0.39/0.41	c 0.380942 34.7383 3 1507
0.39/0.41	o 4
0.39/0.46	c 0.433934 34.7383 49 1607
0.39/0.46	o 3
2.59/2.63	c 2.54461 34.8672 735 2861
2.59/2.63	o 2
2.79/2.81	c 2.72758 34.8672 736 2933
2.79/2.81	s OPTIMUM FOUND
2.79/2.81	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	2

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2681648-1277501320/watcher-2681648-1277501320 -o /tmp/evaluation-result-2681648-1277501320/solver-2681648-1277501320 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681648-1277501320.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 0.98 0.99 3/106 25321
/proc/meminfo: memFree=1858424/2059040 swapFree=4139124/4192956
[pid=25321] ppid=25319 vsize=2136 CPUtime=0
/proc/25321/stat : 25321 (pbct) R 25319 25321 24733 0 -1 4202496 262 0 0 0 0 0 0 0 24 0 1 0 125733655 2187264 181 1992294400 134512640 136421960 4293885296 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25321/statm: 534 182 146 467 0 65 0

[startup+0.0101071 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 25321
/proc/meminfo: memFree=1858424/2059040 swapFree=4139124/4192956
[pid=25321] ppid=25319 vsize=2268 CPUtime=0
/proc/25321/stat : 25321 (pbct) R 25319 25321 24733 0 -1 4202496 278 0 0 0 0 0 0 0 24 0 1 0 125733655 2322432 197 1992294400 134512640 136421960 4293885296 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25321/statm: 567 197 146 467 0 98 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2268

[startup+0.101103 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 25321
/proc/meminfo: memFree=1858424/2059040 swapFree=4139124/4192956
[pid=25321] ppid=25319 vsize=11332 CPUtime=0.09
/proc/25321/stat : 25321 (pbct) R 25319 25321 24733 0 -1 4202496 2504 0 0 0 9 0 0 0 24 0 1 0 125733655 11603968 2423 1992294400 134512640 136421960 4293885296 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25321/statm: 2833 2424 193 467 0 2364 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11332

[startup+0.301145 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 25321
/proc/meminfo: memFree=1858424/2059040 swapFree=4139124/4192956
[pid=25321] ppid=25319 vsize=30924 CPUtime=0.29
/proc/25321/stat : 25321 (pbct) R 25319 25321 24733 0 -1 4202496 7613 0 0 0 27 2 0 0 24 0 1 0 125733655 31666176 7233 1992294400 134512640 136421960 4293885296 18446744073709551615 134597968 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25321/statm: 7731 7233 203 467 0 7262 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 30924

[startup+0.70123 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 25321
/proc/meminfo: memFree=1858424/2059040 swapFree=4139124/4192956
[pid=25321] ppid=25319 vsize=35568 CPUtime=0.69
/proc/25321/stat : 25321 (pbct) R 25319 25321 24733 0 -1 4202496 8763 0 0 0 66 3 0 0 25 0 1 0 125733655 36421632 8326 1992294400 134512640 136421960 4293885296 18446744073709551615 135032201 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25321/statm: 8892 8326 236 467 0 8423 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 35568

[startup+1.5014 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 25322
/proc/meminfo: memFree=1825928/2059040 swapFree=4139124/4192956
[pid=25321] ppid=25319 vsize=35568 CPUtime=1.49
/proc/25321/stat : 25321 (pbct) R 25319 25321 24733 0 -1 4202496 8772 0 0 0 143 6 0 0 25 0 1 0 125733655 36421632 8335 1992294400 134512640 136421960 4293885296 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25321/statm: 8892 8335 236 467 0 8423 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 35568

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

[startup+2.30157 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 25322
/proc/meminfo: memFree=1825556/2059040 swapFree=4139124/4192956
[pid=25321] ppid=25319 vsize=35700 CPUtime=2.29
/proc/25321/stat : 25321 (pbct) R 25319 25321 24733 0 -1 4202496 8791 0 0 0 222 7 0 0 25 0 1 0 125733655 36556800 8354 1992294400 134512640 136421960 4293885296 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25321/statm: 8925 8354 236 467 0 8456 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 35700

[startup+2.70166 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 25322
/proc/meminfo: memFree=1825556/2059040 swapFree=4139124/4192956
[pid=25321] ppid=25319 vsize=35700 CPUtime=2.69
/proc/25321/stat : 25321 (pbct) R 25319 25321 24733 0 -1 4202496 8799 0 0 0 261 8 0 0 25 0 1 0 125733655 36556800 8361 1992294400 134512640 136421960 4293885296 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25321/statm: 8925 8361 236 467 0 8456 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 35700

[startup+2.9017 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 25322
/proc/meminfo: memFree=1825556/2059040 swapFree=4139124/4192956
[pid=25321] ppid=25319 vsize=31740 CPUtime=2.89
/proc/25321/stat : 25321 (pbct) R 25319 25321 24733 0 -1 4202496 8806 0 0 0 281 8 0 0 25 0 1 0 125733655 32501760 7639 1992294400 134512640 136421960 4293885296 18446744073709551615 135801307 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25321/statm: 7935 7639 239 467 0 7466 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 31740

Child status: 0
Real time (s): 2.95873
CPU time (s): 2.95755
CPU user time (s): 2.86556
CPU system time (s): 0.091986
CPU usage (%): 99.9603
Max. virtual memory (cumulated for all children) (KiB): 35700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.86556
system time used= 0.091986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8807
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= 9

runsolver used 0.006998 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node010 at 2010-06-25 23:28:40
IDJOB=2681648
IDBENCH=48137
IDSOLVER=1192
FILE ID=node010/2681648-1277501320
PBS_JOBID= 11190581
Free space on /tmp= 62392 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_4.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681648-1277501320/watcher-2681648-1277501320 -o /tmp/evaluation-result-2681648-1277501320/solver-2681648-1277501320 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681648-1277501320.opb

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

MD5SUM BENCH= a45f8d339393416b6aacc4f79e0ac23e
RANDOM SEED=1327678482

node010.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		: 3000.267
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	: 6000.53
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		: 3000.267
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:       1858952 kB
Buffers:         14216 kB
Cached:          91736 kB
SwapCached:       6004 kB
Active:          69460 kB
Inactive:        49208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1858952 kB
SwapTotal:     4192956 kB
SwapFree:      4139124 kB
Dirty:            1880 kB
Writeback:           0 kB
AnonPages:       11384 kB
Mapped:          11940 kB
Slab:            59416 kB
PageTables:       4172 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182456 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= 62388 MiB
End job on node010 at 2010-06-25 23:28:43