Trace number 2681550

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 2.09368 2.09269

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=9-P0=67-P1=71-B.opb
MD5SUMae67e81d38ba4f76b7dd516b4c482d81
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 benchmark0.077987
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 variables27
Total number of constraints3
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 constraints3
Minimum length of a constraint9
Maximum length of a constraint90
Number of terms in the objective function 9
Biggest coefficient in the objective function 256
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 511
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 131072
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 522902
Number of bits of the biggest sum of numbers19
Number of products (including duplicates)81
Sum of products size (including duplicates)162
Number of different products81
Sum of products size162

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 84/0 clauses 81/0 units 0
0.00/0.00	c vars 27
0.00/0.00	c objective 9 + 0
1.10/1.14	c 1.05284 5.67578 672 22245
1.10/1.14	o 131
1.99/2.08	c 1.89571 5.82812 527 45708
1.99/2.08	o 3
1.99/2.08	c 1.89971 5.82812 346 45790
1.99/2.08	s OPTIMUM FOUND
1.99/2.08	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

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-2681550-1277499489/watcher-2681550-1277499489 -o /tmp/evaluation-result-2681550-1277499489/solver-2681550-1277499489 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681550-1277499489.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 3/106 31189
/proc/meminfo: memFree=1866636/2059040 swapFree=4139332/4192956
[pid=31189] ppid=31187 vsize=3444 CPUtime=0
/proc/31189/stat : 31189 (pbct) R 31187 31189 30597 0 -1 4202496 583 0 0 0 0 0 0 0 20 0 1 0 91244261 3526656 502 1992294400 134512640 136421960 4291323440 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31189/statm: 894 503 193 467 0 425 0

[startup+0.0261259 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 31189
/proc/meminfo: memFree=1866636/2059040 swapFree=4139332/4192956
[pid=31189] ppid=31187 vsize=5164 CPUtime=0.02
/proc/31189/stat : 31189 (pbct) R 31187 31189 30597 0 -1 4202496 999 0 0 0 2 0 0 0 20 0 1 0 91244261 5287936 918 1992294400 134512640 136421960 4291323440 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31189/statm: 1291 921 203 467 0 822 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5164

[startup+0.101131 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 31189
/proc/meminfo: memFree=1866636/2059040 swapFree=4139332/4192956
[pid=31189] ppid=31187 vsize=5552 CPUtime=0.09
/proc/31189/stat : 31189 (pbct) R 31187 31189 30597 0 -1 4202496 1107 0 0 0 9 0 0 0 20 0 1 0 91244261 5685248 1026 1992294400 134512640 136421960 4291323440 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31189/statm: 1388 1026 214 467 0 919 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5552

[startup+0.301143 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 31189
/proc/meminfo: memFree=1866636/2059040 swapFree=4139332/4192956
[pid=31189] ppid=31187 vsize=5680 CPUtime=0.29
/proc/31189/stat : 31189 (pbct) R 31187 31189 30597 0 -1 4202496 1129 0 0 0 27 2 0 0 20 0 1 0 91244261 5816320 1048 1992294400 134512640 136421960 4291323440 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31189/statm: 1420 1048 214 467 0 951 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5680

[startup+0.701169 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 31189
/proc/meminfo: memFree=1866636/2059040 swapFree=4139332/4192956
[pid=31189] ppid=31187 vsize=5680 CPUtime=0.69
/proc/31189/stat : 31189 (pbct) R 31187 31189 30597 0 -1 4202496 1153 0 0 0 65 4 0 0 20 0 1 0 91244261 5816320 1072 1992294400 134512640 136421960 4291323440 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31189/statm: 1420 1072 214 467 0 951 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5680

[startup+1.50122 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 31190
/proc/meminfo: memFree=1863032/2059040 swapFree=4139332/4192956
[pid=31189] ppid=31187 vsize=5964 CPUtime=1.49
/proc/31189/stat : 31189 (pbct) R 31187 31189 30597 0 -1 4202496 1227 0 0 0 137 12 0 0 22 0 1 0 91244261 6107136 1145 1992294400 134512640 136421960 4291323440 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31189/statm: 1491 1145 237 467 0 1022 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5964

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

[startup+1.90125 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 31190
/proc/meminfo: memFree=1863032/2059040 swapFree=4139332/4192956
[pid=31189] ppid=31187 vsize=5964 CPUtime=1.89
/proc/31189/stat : 31189 (pbct) R 31187 31189 30597 0 -1 4202496 1227 0 0 0 173 16 0 0 25 0 1 0 91244261 6107136 1145 1992294400 134512640 136421960 4291323440 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31189/statm: 1491 1145 237 467 0 1022 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 5964

[startup+2.00125 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 31190
/proc/meminfo: memFree=1863032/2059040 swapFree=4139332/4192956
[pid=31189] ppid=31187 vsize=5964 CPUtime=1.99
/proc/31189/stat : 31189 (pbct) R 31187 31189 30597 0 -1 4202496 1227 0 0 0 182 17 0 0 25 0 1 0 91244261 6107136 1145 1992294400 134512640 136421960 4291323440 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31189/statm: 1491 1145 237 467 0 1022 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 5964

Child status: 0
Real time (s): 2.09269
CPU time (s): 2.09368
CPU user time (s): 1.90471
CPU system time (s): 0.188971
CPU usage (%): 100.048
Max. virtual memory (cumulated for all children) (KiB): 5964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.90471
system time used= 0.188971
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1233
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= 3

runsolver used 0.004999 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node030 at 2010-06-25 22:58:09
IDJOB=2681550
IDBENCH=48039
IDSOLVER=1192
FILE ID=node030/2681550-1277499489
PBS_JOBID= 11190558
Free space on /tmp= 62492 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=9-P0=67-P1=71-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681550-1277499489/watcher-2681550-1277499489 -o /tmp/evaluation-result-2681550-1277499489/solver-2681550-1277499489 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681550-1277499489.opb

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

MD5SUM BENCH= ae67e81d38ba4f76b7dd516b4c482d81
RANDOM SEED=1038573516

node030.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	: 5599.52
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1867164 kB
Buffers:         21864 kB
Cached:          70928 kB
SwapCached:       6632 kB
Active:          61004 kB
Inactive:        45280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1867164 kB
SwapTotal:     4192956 kB
SwapFree:      4139332 kB
Dirty:            2060 kB
Writeback:           0 kB
AnonPages:       11680 kB
Mapped:          11852 kB
Slab:            63500 kB
PageTables:       4164 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180944 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= 62492 MiB
End job on node030 at 2010-06-25 22:58:11