Trace number 2682933

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 fixedUNSAT 1.07784 1.07835

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-stocfor1.opb
MD5SUM323b3a265759dd86c0c933d2225addd0
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark1.07784
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables3330
Total number of constraints117
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 constraints117
Minimum length of a constraint30
Maximum length of a constraint240
Number of terms in the objective function 810
Biggest coefficient in the objective function 159153234378752000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 3935910692489746509
Number of bits of the sum of numbers in the objective function 62
Biggest number in a constraint 159153234378752000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 3935910692489746509
Number of bits of the biggest sum of numbers62
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.02/0.05	c constraints 117/0 clauses 0/0 units 198
0.02/0.05	c vars 3330
0.02/0.05	c objective 810 + -2024135925216529509
0.79/0.82	c 0.767883 58.7109 7 3900
0.99/1.07	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-2682933-1277487717/watcher-2682933-1277487717 -o /tmp/evaluation-result-2682933-1277487717/solver-2682933-1277487717 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682933-1277487717.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: 0.99 0.97 0.91 3/105 29927
/proc/meminfo: memFree=1867776/2059040 swapFree=4138820/4192956
[pid=29927] ppid=29925 vsize=2268 CPUtime=0
/proc/29927/stat : 29927 (pbct) R 29925 29927 29129 0 -1 4202496 279 0 0 0 0 0 0 0 25 0 1 0 90065239 2322432 198 1992294400 134512640 136421960 4292128384 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29927/statm: 567 198 146 467 0 98 0

[startup+0.027508 s]
/proc/loadavg: 0.99 0.97 0.91 3/105 29927
/proc/meminfo: memFree=1867776/2059040 swapFree=4138820/4192956
[pid=29927] ppid=29925 vsize=2664 CPUtime=0.02
/proc/29927/stat : 29927 (pbct) R 29925 29927 29129 0 -1 4202496 385 0 0 0 2 0 0 0 25 0 1 0 90065239 2727936 304 1992294400 134512640 136421960 4292128384 18446744073709551615 135380581 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29927/statm: 666 305 146 467 0 197 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2664

[startup+0.100515 s]
/proc/loadavg: 0.99 0.97 0.91 3/105 29927
/proc/meminfo: memFree=1867776/2059040 swapFree=4138820/4192956
[pid=29927] ppid=29925 vsize=8256 CPUtime=0.09
/proc/29927/stat : 29927 (pbct) R 29925 29927 29129 0 -1 4202496 1748 0 0 0 8 1 0 0 25 0 1 0 90065239 8454144 1667 1992294400 134512640 136421960 4292128384 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29927/statm: 2064 1668 195 467 0 1595 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8256

[startup+0.300537 s]
/proc/loadavg: 0.99 0.97 0.91 3/105 29927
/proc/meminfo: memFree=1867776/2059040 swapFree=4138820/4192956
[pid=29927] ppid=29925 vsize=23368 CPUtime=0.29
/proc/29927/stat : 29927 (pbct) R 29925 29927 29129 0 -1 4202496 5592 0 0 0 27 2 0 0 25 0 1 0 90065239 23928832 5445 1992294400 134512640 136421960 4292128384 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29927/statm: 5842 5446 195 467 0 5373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 23368

[startup+0.700582 s]
/proc/loadavg: 0.99 0.97 0.91 3/105 29927
/proc/meminfo: memFree=1867776/2059040 swapFree=4138820/4192956
[pid=29927] ppid=29925 vsize=56684 CPUtime=0.69
/proc/29927/stat : 29927 (pbct) R 29925 29927 29129 0 -1 4202496 14328 0 0 0 64 5 0 0 25 0 1 0 90065239 58044416 13440 1992294400 134512640 136421960 4292128384 18446744073709551615 134914432 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29927/statm: 14171 13440 205 467 0 13702 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 56684

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

[startup+0.900605 s]
/proc/loadavg: 0.99 0.97 0.91 3/105 29927
/proc/meminfo: memFree=1867776/2059040 swapFree=4138820/4192956
[pid=29927] ppid=29925 vsize=57052 CPUtime=0.89
/proc/29927/stat : 29927 (pbct) R 29925 29927 29129 0 -1 4202496 15183 0 0 0 84 5 0 0 25 0 1 0 90065239 58421248 13642 1992294400 134512640 136421960 4292128384 18446744073709551615 135801332 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29927/statm: 14263 13642 240 467 0 13794 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 57052

[startup+1.00062 s]
/proc/loadavg: 0.99 0.97 0.91 2/106 29928
/proc/meminfo: memFree=1813828/2059040 swapFree=4138820/4192956
[pid=29927] ppid=29925 vsize=56536 CPUtime=0.99
/proc/29927/stat : 29927 (pbct) R 29925 29927 29129 0 -1 4202496 15183 0 0 0 94 5 0 0 25 0 1 0 90065239 57892864 13536 1992294400 134512640 136421960 4292128384 18446744073709551615 134701458 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29927/statm: 14134 13536 240 467 0 13665 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 56536

Child status: 0
Real time (s): 1.07835
CPU time (s): 1.07784
CPU user time (s): 1.01285
CPU system time (s): 0.06499
CPU usage (%): 99.9523
Max. virtual memory (cumulated for all children) (KiB): 59572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.01285
system time used= 0.06499
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15184
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= 16

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node088 at 2010-06-25 19:41:57
IDJOB=2682933
IDBENCH=2458
IDSOLVER=1192
FILE ID=node088/2682933-1277487717
PBS_JOBID= 11190480
Free space on /tmp= 62468 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-stocfor1.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682933-1277487717/watcher-2682933-1277487717 -o /tmp/evaluation-result-2682933-1277487717/solver-2682933-1277487717 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682933-1277487717.opb

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

MD5SUM BENCH= 323b3a265759dd86c0c933d2225addd0
RANDOM SEED=865962057

node088.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		: 3000.217
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	: 6000.43
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		: 3000.217
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1868304 kB
Buffers:         18592 kB
Cached:          77932 kB
SwapCached:       6160 kB
Active:          68748 kB
Inactive:        40436 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1868304 kB
SwapTotal:     4192956 kB
SwapFree:      4138820 kB
Dirty:            2084 kB
Writeback:           0 kB
AnonPages:       11400 kB
Mapped:           8248 kB
Slab:            59548 kB
PageTables:       4132 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182348 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= 62464 MiB
End job on node088 at 2010-06-25 19:41:58