Trace number 2668633

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 0.1Wrong UNSAT 12.0312 12.0344

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-mzzv11.opb
MD5SUMa74bcf40291587dc368e3a23fd278be9
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-10859
Best CPU time to get the best result obtained on this benchmark187.313
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -10639
Optimality of the best value was proved NO
Number of variables11247
Total number of constraints9744
Number of constraints which are clauses77
Number of constraints which are cardinality constraints (but not clauses)5755
Number of constraints which are nor clauses,nor cardinality constraints3912
Minimum length of a constraint2
Maximum length of a constraint68
Number of terms in the objective function 773
Biggest coefficient in the objective function 1000
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 76861
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 1999
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 76861
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.39/0.44	c constraints 9604/0 clauses 124/0 units 80
0.39/0.44	c vars 11247
0.39/0.44	c objective 724 + -13489
9.19/9.29	c 8.65568 571.914 0 0
11.89/11.98	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668633-1276437749/watcher-2668633-1276437749 -o /tmp/evaluation-result-2668633-1276437749/solver-2668633-1276437749 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668633-1276437749.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: 0.91 0.95 0.98 3/106 23945
/proc/meminfo: memFree=1817856/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=2340 CPUtime=0
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 286 0 0 0 0 0 0 0 20 0 1 0 19361351 2396160 208 1992294400 134512640 136485738 4289276800 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23945/statm: 585 208 156 482 0 101 0

[startup+0.0635691 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 23945
/proc/meminfo: memFree=1817856/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=4056 CPUtime=0.05
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 725 0 0 0 5 0 0 0 20 0 1 0 19361351 4153344 647 1992294400 134512640 136485738 4289276800 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23945/statm: 1014 647 157 482 0 530 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4056

[startup+0.101573 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 23945
/proc/meminfo: memFree=1817856/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=5112 CPUtime=0.09
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 991 0 0 0 9 0 0 0 20 0 1 0 19361351 5234688 913 1992294400 134512640 136485738 4289276800 18446744073709551615 135411158 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23945/statm: 1278 913 157 482 0 794 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5112

[startup+0.301592 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 23945
/proc/meminfo: memFree=1817856/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=10684 CPUtime=0.29
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 2368 0 0 0 28 1 0 0 20 0 1 0 19361351 10940416 2290 1992294400 134512640 136485738 4289276800 18446744073709551615 135565480 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23945/statm: 2671 2290 157 482 0 2187 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10684

[startup+0.700634 s]
/proc/loadavg: 0.91 0.95 0.98 3/106 23945
/proc/meminfo: memFree=1817856/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=35444 CPUtime=0.69
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 8577 0 0 0 65 4 0 0 21 0 1 0 19361351 36294656 8433 1992294400 134512640 136485738 4289276800 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23945/statm: 8861 8434 198 482 0 8377 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 35444

[startup+1.50071 s]
/proc/loadavg: 0.91 0.95 0.98 2/107 23946
/proc/meminfo: memFree=1763908/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=91612 CPUtime=1.49
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 23382 0 0 0 139 10 0 0 23 0 1 0 19361351 93810688 22124 1992294400 134512640 136485738 4289276800 18446744073709551615 135689035 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23945/statm: 22903 22125 198 482 0 22419 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 91612

[startup+3.10087 s]
/proc/loadavg: 0.91 0.95 0.98 2/107 23946
/proc/meminfo: memFree=1697816/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=176188 CPUtime=3.09
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 46365 0 0 0 290 19 0 0 25 0 1 0 19361351 180416512 43245 1992294400 134512640 136485738 4289276800 18446744073709551615 135557347 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23945/statm: 44047 43246 198 482 0 43563 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 176188

[startup+6.3012 s]
/proc/loadavg: 0.92 0.95 0.98 2/107 23946
/proc/meminfo: memFree=1520620/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=378636 CPUtime=6.29
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 100421 0 0 0 584 45 0 0 25 0 1 0 19361351 387723264 93968 1992294400 134512640 136485738 4289276800 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23945/statm: 94659 93973 199 482 0 94175 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 378636

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

[startup+9.50052 s]
/proc/loadavg: 0.93 0.95 0.98 2/107 23946
/proc/meminfo: memFree=1297792/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=564220 CPUtime=9.49
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 153039 0 0 0 886 63 0 0 25 0 1 0 19361351 577761280 134625 1992294400 134512640 136485738 4289276800 18446744073709551615 134728885 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23945/statm: 141055 134625 244 482 0 140571 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 564220

[startup+11.1007 s]
/proc/loadavg: 0.93 0.95 0.98 2/107 23946
/proc/meminfo: memFree=1301760/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=529016 CPUtime=11.09
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 153039 0 0 0 1046 63 0 0 25 0 1 0 19361351 541712384 128722 1992294400 134512640 136485738 4289276800 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23945/statm: 132254 128722 244 482 0 131770 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 529016

[startup+11.5007 s]
/proc/loadavg: 0.93 0.95 0.98 2/107 23946
/proc/meminfo: memFree=1301760/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=526700 CPUtime=11.49
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 153039 0 0 0 1086 63 0 0 25 0 1 0 19361351 539340800 128143 1992294400 134512640 136485738 4289276800 18446744073709551615 135856892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23945/statm: 131675 128143 244 482 0 131191 0
Current children cumulated CPU time (s) 11.49
Current children cumulated vsize (KiB) 526700

[startup+11.9008 s]
/proc/loadavg: 0.93 0.95 0.98 2/107 23946
/proc/meminfo: memFree=1301760/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=492972 CPUtime=11.89
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202496 153040 0 0 0 1126 63 0 0 25 0 1 0 19361351 504803328 122920 1992294400 134512640 136485738 4289276800 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23945/statm: 123243 122920 245 482 0 122759 0
Current children cumulated CPU time (s) 11.89
Current children cumulated vsize (KiB) 492972

[startup+12.0008 s]
/proc/loadavg: 0.93 0.95 0.98 2/107 23946
/proc/meminfo: memFree=1469780/2059040 swapFree=4134520/4192956
[pid=23945] ppid=23943 vsize=0 CPUtime=12
/proc/23945/stat : 23945 (pbct) R 23943 23945 22114 0 -1 4202500 153040 0 0 0 1134 66 0 0 25 0 1 0 19361351 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/23945/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 12
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 12.0344
CPU time (s): 12.0312
CPU user time (s): 11.3433
CPU system time (s): 0.687895
CPU usage (%): 99.9732
Max. virtual memory (cumulated for all children) (KiB): 585636

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.3433
system time used= 0.687895
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 153040
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= 54

runsolver used 0.027995 second user time and 0.06099 second system time

The end

Launcher Data 

Begin job on node017 at 2010-06-13 16:02:29
IDJOB=2668633
IDBENCH=1875
IDSOLVER=1170
FILE ID=node017/2668633-1276437749
PBS_JOBID= 11173309
Free space on /tmp= 62368 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-mzzv11.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668633-1276437749/watcher-2668633-1276437749 -o /tmp/evaluation-result-2668633-1276437749/solver-2668633-1276437749 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668633-1276437749.opb

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

MD5SUM BENCH= a74bcf40291587dc368e3a23fd278be9
RANDOM SEED=1876954492

node017.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1818260 kB
Buffers:         37004 kB
Cached:         126132 kB
SwapCached:      11708 kB
Active:          98132 kB
Inactive:        79036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1818260 kB
SwapTotal:     4192956 kB
SwapFree:      4134520 kB
Dirty:            3260 kB
Writeback:           8 kB
AnonPages:       12328 kB
Mapped:           9196 kB
Slab:            41812 kB
PageTables:       3968 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182628 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= 62364 MiB
End job on node017 at 2010-06-13 16:02:42