Trace number 2681500

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 fixedOPT3 23.7474 23.7549

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=7-P0=127-P1=13-P2=109-B.opb
MD5SUMc35f2a77ece8614d0fa2cb31c8021798
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.139978
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables42
Total number of constraints5
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 constraints5
Minimum length of a constraint7
Maximum length of a constraint63
Number of terms in the objective function 7
Biggest coefficient in the objective function 64
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 127
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 8192
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 32512
Number of bits of the biggest sum of numbers15
Number of products (including duplicates)98
Sum of products size (including duplicates)196
Number of different products98
Sum of products size196

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
0.00/0.00	c constraints 103/0 clauses 98/0 units 0
0.00/0.00	c vars 42
0.00/0.00	c objective 7 + 0
0.80/0.86	c 0.762884 5.96484 1231 19051
0.80/0.86	o 113
1.00/1.02	c 0.903862 6.11719 465 22870
1.00/1.02	o 41
1.39/1.40	c 1.22881 6.11719 597 32217
1.39/1.40	o 37
1.79/1.83	c 1.59476 6.11719 497 43819
1.79/1.83	o 3
23.68/23.74	c 20.8328 6.11719 556 553792
23.68/23.74	s OPTIMUM FOUND
23.68/23.74	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

Verifier Data 

OK	3

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2681500-1277498952/watcher-2681500-1277498952 -o /tmp/evaluation-result-2681500-1277498952/solver-2681500-1277498952 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681500-1277498952.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: 1.00 1.00 1.00 3/105 29993
/proc/meminfo: memFree=1787028/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=3580 CPUtime=0
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 594 0 0 0 0 0 0 0 25 0 1 0 91188658 3665920 513 1992294400 134512640 136421960 4293914704 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 895 515 193 467 0 426 0

[startup+0.086774 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 29993
/proc/meminfo: memFree=1787028/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=5972 CPUtime=0.08
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1210 0 0 0 8 0 0 0 25 0 1 0 91188658 6115328 1129 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1493 1129 214 467 0 1024 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5972

[startup+0.101776 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 29993
/proc/meminfo: memFree=1787028/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=5972 CPUtime=0.09
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1211 0 0 0 9 0 0 0 25 0 1 0 91188658 6115328 1130 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1493 1130 214 467 0 1024 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5972

[startup+0.301794 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 29993
/proc/meminfo: memFree=1787028/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6104 CPUtime=0.29
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1227 0 0 0 27 2 0 0 25 0 1 0 91188658 6250496 1146 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1526 1146 214 467 0 1057 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6104

[startup+0.701834 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 29993
/proc/meminfo: memFree=1787028/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6104 CPUtime=0.69
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1254 0 0 0 61 8 0 0 25 0 1 0 91188658 6250496 1173 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1526 1173 214 467 0 1057 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6104

[startup+1.50091 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 29994
/proc/meminfo: memFree=1783052/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6260 CPUtime=1.49
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1292 0 0 0 130 19 0 0 25 0 1 0 91188658 6410240 1208 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1565 1208 237 467 0 1096 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6260

[startup+3.10107 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 29994
/proc/meminfo: memFree=1782804/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6260 CPUtime=3.09
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1293 0 0 0 270 39 0 0 25 0 1 0 91188658 6410240 1208 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1565 1208 237 467 0 1096 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6260

[startup+6.30138 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 29994
/proc/meminfo: memFree=1782680/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6260 CPUtime=6.29
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1294 0 0 0 552 77 0 0 25 0 1 0 91188658 6410240 1209 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1565 1209 237 467 0 1096 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 6260

[startup+12.701 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 29994
/proc/meminfo: memFree=1782564/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6260 CPUtime=12.69
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1305 0 0 0 1115 154 0 0 25 0 1 0 91188658 6410240 1220 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1565 1220 237 467 0 1096 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6260

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

[startup+19.1006 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 29994
/proc/meminfo: memFree=1782564/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6260 CPUtime=19.09
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1305 0 0 0 1678 231 0 0 25 0 1 0 91188658 6410240 1220 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1565 1220 237 467 0 1096 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 6260

[startup+22.3009 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 29994
/proc/meminfo: memFree=1782564/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6260 CPUtime=22.29
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1305 0 0 0 1955 274 0 0 25 0 1 0 91188658 6410240 1220 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1565 1220 237 467 0 1096 0
Current children cumulated CPU time (s) 22.29
Current children cumulated vsize (KiB) 6260

[startup+23.109 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 29994
/proc/meminfo: memFree=1782564/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6260 CPUtime=23.1
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1307 0 0 0 2027 283 0 0 25 0 1 0 91188658 6410240 1222 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1565 1222 237 467 0 1096 0
Current children cumulated CPU time (s) 23.1
Current children cumulated vsize (KiB) 6260

[startup+23.5011 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 29994
/proc/meminfo: memFree=1782564/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6260 CPUtime=23.48
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1307 0 0 0 2061 287 0 0 25 0 1 0 91188658 6410240 1222 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1565 1222 237 467 0 1096 0
Current children cumulated CPU time (s) 23.48
Current children cumulated vsize (KiB) 6260

[startup+23.7011 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 29994
/proc/meminfo: memFree=1782564/2059040 swapFree=4140364/4192956
[pid=29993] ppid=29991 vsize=6260 CPUtime=23.68
/proc/29993/stat : 29993 (pbct) R 29991 29993 29437 0 -1 4202496 1307 0 0 0 2079 289 0 0 25 0 1 0 91188658 6410240 1222 1992294400 134512640 136421960 4293914704 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29993/statm: 1565 1222 237 467 0 1096 0
Current children cumulated CPU time (s) 23.68
Current children cumulated vsize (KiB) 6260

Child status: 0
Real time (s): 23.7549
CPU time (s): 23.7474
CPU user time (s): 20.8398
CPU system time (s): 2.90756
CPU usage (%): 99.9683
Max. virtual memory (cumulated for all children) (KiB): 6260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.8398
system time used= 2.90756
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1312
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= 37

runsolver used 0.041993 second user time and 0.118981 second system time

The end

Launcher Data 

Begin job on node089 at 2010-06-25 22:49:12
IDJOB=2681500
IDBENCH=47989
IDSOLVER=1192
FILE ID=node089/2681500-1277498952
PBS_JOBID= 11190535
Free space on /tmp= 62556 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=7-P0=127-P1=13-P2=109-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681500-1277498952/watcher-2681500-1277498952 -o /tmp/evaluation-result-2681500-1277498952/solver-2681500-1277498952 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681500-1277498952.opb

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

MD5SUM BENCH= c35f2a77ece8614d0fa2cb31c8021798
RANDOM SEED=95032446

node089.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		: 3000.244
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	: 6000.48
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		: 3000.244
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	: 5999.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1787556 kB
Buffers:         42324 kB
Cached:         127132 kB
SwapCached:       5456 kB
Active:          61828 kB
Inactive:       120024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1787556 kB
SwapTotal:     4192956 kB
SwapFree:      4140364 kB
Dirty:            1908 kB
Writeback:           0 kB
AnonPages:       11080 kB
Mapped:          11868 kB
Slab:            67876 kB
PageTables:       4100 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180572 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= 62552 MiB
End job on node089 at 2010-06-25 22:49:35