Trace number 2681448

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 4.43732 4.43799

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=17-P1=17-P2=13-P3=17-P4=29-B.opb
MD5SUM403b623ea10f115d0b920329a5e92576
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 benchmark0.101984
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 variables60
Total number of constraints9
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 constraints9
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)100
Sum of products size (including duplicates)200
Number of different products100
Sum of products size200

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 109/0 clauses 100/0 units 0
0.00/0.00	c vars 60
0.00/0.00	c objective 5 + 0
0.10/0.18	c 0.155976 5.94531 868 5029
0.10/0.18	o 9
0.19/0.28	c 0.243962 6.07812 565 8506
0.19/0.28	o 3
4.40/4.43	c 3.84442 6.07812 614 121338
4.40/4.43	s OPTIMUM FOUND
4.40/4.43	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	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-2681448-1277498266/watcher-2681448-1277498266 -o /tmp/evaluation-result-2681448-1277498266/solver-2681448-1277498266 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681448-1277498266.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 31304
/proc/meminfo: memFree=1857748/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=3572 CPUtime=0
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 594 0 0 0 0 0 0 0 25 0 1 0 91119725 3657728 513 1992294400 134512640 136421960 4294117184 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 893 513 193 467 0 424 0

[startup+0.031217 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 31304
/proc/meminfo: memFree=1857748/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=5688 CPUtime=0.02
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 1124 0 0 0 2 0 0 0 25 0 1 0 91119725 5824512 1043 1992294400 134512640 136421960 4294117184 18446744073709551615 135642753 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 1422 1043 203 467 0 953 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5688

[startup+0.101226 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 31304
/proc/meminfo: memFree=1857748/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=6084 CPUtime=0.1
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 1227 0 0 0 9 1 0 0 25 0 1 0 91119725 6230016 1146 1992294400 134512640 136421960 4294117184 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 1521 1146 214 467 0 1052 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 6084

[startup+0.301251 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 31304
/proc/meminfo: memFree=1857748/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=6220 CPUtime=0.29
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 1273 0 0 0 25 4 0 0 25 0 1 0 91119725 6369280 1190 1992294400 134512640 136421960 4294117184 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 1555 1190 237 467 0 1086 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6220

[startup+0.701299 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 31304
/proc/meminfo: memFree=1857748/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=6220 CPUtime=0.69
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 1273 0 0 0 60 9 0 0 25 0 1 0 91119725 6369280 1190 1992294400 134512640 136421960 4294117184 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 1555 1190 237 467 0 1086 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6220

[startup+1.5014 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 31305
/proc/meminfo: memFree=1853772/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=6220 CPUtime=1.5
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 1278 0 0 0 130 20 0 0 25 0 1 0 91119725 6369280 1195 1992294400 134512640 136421960 4294117184 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 1555 1195 237 467 0 1086 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 6220

[startup+3.10159 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 31305
/proc/meminfo: memFree=1853400/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=6220 CPUtime=3.09
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 1288 0 0 0 267 42 0 0 25 0 1 0 91119725 6369280 1205 1992294400 134512640 136421960 4294117184 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 1555 1205 237 467 0 1086 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6220

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

[startup+3.90069 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 31305
/proc/meminfo: memFree=1853400/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=6220 CPUtime=3.89
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 1290 0 0 0 337 52 0 0 25 0 1 0 91119725 6369280 1207 1992294400 134512640 136421960 4294117184 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 1555 1207 237 467 0 1086 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 6220

[startup+4.30074 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 31305
/proc/meminfo: memFree=1853400/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=6220 CPUtime=4.29
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 1293 0 0 0 373 56 0 0 25 0 1 0 91119725 6369280 1210 1992294400 134512640 136421960 4294117184 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 1555 1210 237 467 0 1086 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 6220

[startup+4.40776 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 31305
/proc/meminfo: memFree=1853400/2059040 swapFree=4138820/4192956
[pid=31304] ppid=31302 vsize=6220 CPUtime=4.4
/proc/31304/stat : 31304 (pbct) R 31302 31304 30641 0 -1 4202496 1293 0 0 0 382 58 0 0 25 0 1 0 91119725 6369280 1210 1992294400 134512640 136421960 4294117184 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31304/statm: 1555 1210 237 467 0 1086 0
Current children cumulated CPU time (s) 4.4
Current children cumulated vsize (KiB) 6220

Child status: 0
Real time (s): 4.43799
CPU time (s): 4.43732
CPU user time (s): 3.85141
CPU system time (s): 0.58591
CPU usage (%): 99.9849
Max. virtual memory (cumulated for all children) (KiB): 6220

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.85141
system time used= 0.58591
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1298
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= 12

runsolver used 0.010998 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node080 at 2010-06-25 22:37:46
IDJOB=2681448
IDBENCH=47937
IDSOLVER=1192
FILE ID=node080/2681448-1277498266
PBS_JOBID= 11190538
Free space on /tmp= 62284 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=17-P1=17-P2=13-P3=17-P4=29-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681448-1277498266/watcher-2681448-1277498266 -o /tmp/evaluation-result-2681448-1277498266/solver-2681448-1277498266 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681448-1277498266.opb

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

MD5SUM BENCH= 403b623ea10f115d0b920329a5e92576
RANDOM SEED=645579477

node080.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		: 3000.242
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		: 3000.242
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	: 5999.49
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1858152 kB
Buffers:         15988 kB
Cached:          89984 kB
SwapCached:       6848 kB
Active:          55796 kB
Inactive:        63740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1858152 kB
SwapTotal:     4192956 kB
SwapFree:      4138820 kB
Dirty:            2008 kB
Writeback:           0 kB
AnonPages:       12272 kB
Mapped:          11864 kB
Slab:            59348 kB
PageTables:       4124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182924 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= 62284 MiB
End job on node080 at 2010-06-25 22:37:50