Trace number 2681402

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 1.70674 1.7069

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=19-P1=53-P2=37-B.opb
MD5SUMfe9afe61a3128dc2392b842924791b6c
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 benchmark0.065989
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 variables36
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 constraint6
Maximum length of a constraint48
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8064
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)72
Sum of products size (including duplicates)144
Number of different products72
Sum of products size144

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 77/0 clauses 72/0 units 0
0.00/0.00	c vars 36
0.00/0.00	c objective 6 + 0
0.29/0.33	c 0.292955 5.16797 788 8278
0.29/0.33	o 45
0.40/0.49	c 0.435933 5.16797 411 12375
0.40/0.49	o 5
0.49/0.52	c 0.465929 5.16797 342 13369
0.49/0.52	o 3
1.70/1.70	c 1.50077 5.16797 240 40659
1.70/1.70	s OPTIMUM FOUND
1.70/1.70	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

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-2681402-1277497422/watcher-2681402-1277497422 -o /tmp/evaluation-result-2681402-1277497422/solver-2681402-1277497422 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681402-1277497422.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 1.02 1.00 3/106 29058
/proc/meminfo: memFree=1840228/2059040 swapFree=4140380/4192956
[pid=29058] ppid=29056 vsize=3448 CPUtime=0
/proc/29058/stat : 29058 (pbct) R 29056 29058 28651 0 -1 4202496 578 0 0 0 0 0 0 0 20 0 1 0 91034557 3530752 498 1992294400 134512640 136421960 4289208848 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29058/statm: 862 499 193 467 0 393 0

[startup+0.0315849 s]
/proc/loadavg: 1.00 1.02 1.00 3/106 29058
/proc/meminfo: memFree=1840228/2059040 swapFree=4140380/4192956
[pid=29058] ppid=29056 vsize=5032 CPUtime=0.02
/proc/29058/stat : 29058 (pbct) R 29056 29058 28651 0 -1 4202496 995 0 0 0 2 0 0 0 20 0 1 0 91034557 5152768 915 1992294400 134512640 136421960 4289208848 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29058/statm: 1258 915 214 467 0 789 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5032

[startup+0.10159 s]
/proc/loadavg: 1.00 1.02 1.00 3/106 29058
/proc/meminfo: memFree=1840228/2059040 swapFree=4140380/4192956
[pid=29058] ppid=29056 vsize=5160 CPUtime=0.09
/proc/29058/stat : 29058 (pbct) R 29056 29058 28651 0 -1 4202496 1018 0 0 0 8 1 0 0 20 0 1 0 91034557 5283840 938 1992294400 134512640 136421960 4289208848 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29058/statm: 1290 938 214 467 0 821 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5160

[startup+0.301609 s]
/proc/loadavg: 1.00 1.02 1.00 3/106 29058
/proc/meminfo: memFree=1840228/2059040 swapFree=4140380/4192956
[pid=29058] ppid=29056 vsize=5160 CPUtime=0.29
/proc/29058/stat : 29058 (pbct) R 29056 29058 28651 0 -1 4202496 1027 0 0 0 25 4 0 0 20 0 1 0 91034557 5283840 947 1992294400 134512640 136421960 4289208848 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29058/statm: 1290 947 214 467 0 821 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5160

[startup+0.701643 s]
/proc/loadavg: 1.00 1.02 1.00 3/106 29058
/proc/meminfo: memFree=1840228/2059040 swapFree=4140380/4192956
[pid=29058] ppid=29056 vsize=5288 CPUtime=0.69
/proc/29058/stat : 29058 (pbct) R 29056 29058 28651 0 -1 4202496 1069 0 0 0 61 8 0 0 21 0 1 0 91034557 5414912 986 1992294400 134512640 136421960 4289208848 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29058/statm: 1322 986 237 467 0 853 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5288

[startup+1.50172 s]
/proc/loadavg: 1.00 1.02 1.00 2/107 29059
/proc/meminfo: memFree=1837120/2059040 swapFree=4140380/4192956
[pid=29058] ppid=29056 vsize=5288 CPUtime=1.49
/proc/29058/stat : 29058 (pbct) R 29056 29058 28651 0 -1 4202496 1069 0 0 0 131 18 0 0 23 0 1 0 91034557 5414912 986 1992294400 134512640 136421960 4289208848 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29058/statm: 1322 986 237 467 0 853 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5288

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

[startup+1.70173 s]
/proc/loadavg: 1.00 1.02 1.00 2/107 29059
/proc/meminfo: memFree=1837120/2059040 swapFree=4140380/4192956
[pid=29058] ppid=29056 vsize=5288 CPUtime=1.7
/proc/29058/stat : 29058 (pbct) R 29056 29058 28651 0 -1 4202496 1069 0 0 0 150 20 0 0 24 0 1 0 91034557 5414912 986 1992294400 134512640 136421960 4289208848 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29058/statm: 1322 986 237 467 0 853 0
Current children cumulated CPU time (s) 1.7
Current children cumulated vsize (KiB) 5288

Child status: 0
Real time (s): 1.7069
CPU time (s): 1.70674
CPU user time (s): 1.50477
CPU system time (s): 0.201969
CPU usage (%): 99.9903
Max. virtual memory (cumulated for all children) (KiB): 5288

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.50477
system time used= 0.201969
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1074
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= 5

runsolver used 0.007998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node043 at 2010-06-25 22:23:42
IDJOB=2681402
IDBENCH=47891
IDSOLVER=1192
FILE ID=node043/2681402-1277497422
PBS_JOBID= 11190552
Free space on /tmp= 62288 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=19-P1=53-P2=37-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681402-1277497422/watcher-2681402-1277497422 -o /tmp/evaluation-result-2681402-1277497422/solver-2681402-1277497422 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681402-1277497422.opb

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

MD5SUM BENCH= fe9afe61a3128dc2392b842924791b6c
RANDOM SEED=173809803

node043.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		: 3000.241
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		: 3000.241
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	: 5599.37
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1840756 kB
Buffers:         23992 kB
Cached:          96868 kB
SwapCached:       5408 kB
Active:          23468 kB
Inactive:       110448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1840756 kB
SwapTotal:     4192956 kB
SwapFree:      4140380 kB
Dirty:            1984 kB
Writeback:           0 kB
AnonPages:       11656 kB
Mapped:          12012 kB
Slab:            62340 kB
PageTables:       4216 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183316 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= 62288 MiB
End job on node043 at 2010-06-25 22:23:43