Trace number 2683525

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
wbo 1.4b? (problem) 0.138978 0.138512

General information on the benchmark

Name/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/
rand.biglist/normalized-randfe95e3.cudf.paranoid.opb
MD5SUM935dbca81410818c4dfa4090fb07f874
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
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 benchmark0.171973
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables6249
Total number of constraints27683
Number of constraints which are clauses27359
Number of constraints which are cardinality constraints (but not clauses)324
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint553
Number of terms in the objective function 2304
Biggest coefficient in the objective function 1755
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 968758
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1755
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 968758
Number of bits of the biggest sum of numbers20
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 wbo 1.4 beta - 20100517
0.00/0.00	c Parsing opb file format. File HOME/instance-2683525-1277510423.opb.
0.00/0.00	c Instance file HOME/instance-2683525-1277510423.opb
0.00/0.00	c File size is 892984 bytes.
0.09/0.13	c Highest Coefficient sum: 553
0.09/0.13	c ============================[ Problem Statistics ]=============================
0.09/0.13	c |                                                                             |
0.09/0.13	c |  Parsing time:          0.13         s                                      |
0.09/0.13	c |  Number Variables:      6249                                                |
0.09/0.13	c |  Number Clauses:        27359                                               |
0.09/0.13	c |  Number Cardinality:    324                                                 |
0.09/0.13	c |  Number PB Constraints: 0                                                   |

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-2683525-1277510423/watcher-2683525-1277510423 -o /tmp/evaluation-result-2683525-1277510423/solver-2683525-1277510423 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2683525-1277510423.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 1.01 1.00 3/107 25896
/proc/meminfo: memFree=1832756/2059040 swapFree=4138980/4192956
[pid=25896] ppid=25894 vsize=3928 CPUtime=0
/proc/25896/stat : 25896 (wbo1.4b) R 25894 25896 25348 0 -1 4202496 395 0 0 0 0 0 0 0 18 0 1 0 124698042 4022272 313 1992294400 134512640 135751879 4288154800 18446744073709551615 135228447 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/25896/statm: 982 320 143 303 0 458 0

[startup+0.055339 s]
/proc/loadavg: 1.00 1.01 1.00 3/107 25896
/proc/meminfo: memFree=1832756/2059040 swapFree=4138980/4192956
[pid=25896] ppid=25894 vsize=4620 CPUtime=0.05
/proc/25896/stat : 25896 (wbo1.4b) R 25894 25896 25348 0 -1 4202496 649 0 0 0 5 0 0 0 20 0 1 0 124698042 4730880 567 1992294400 134512640 135751879 4288154800 18446744073709551615 135206651 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/25896/statm: 1155 567 221 303 0 631 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4620

[startup+0.101343 s]
/proc/loadavg: 1.00 1.01 1.00 3/107 25896
/proc/meminfo: memFree=1832756/2059040 swapFree=4138980/4192956
[pid=25896] ppid=25894 vsize=5340 CPUtime=0.09
/proc/25896/stat : 25896 (wbo1.4b) R 25894 25896 25348 0 -1 4202496 886 0 0 0 9 0 0 0 20 0 1 0 124698042 5468160 804 1992294400 134512640 135751879 4288154800 18446744073709551615 134573984 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/25896/statm: 1335 804 296 303 0 811 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5340

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

Child status: 0
Real time (s): 0.138512
CPU time (s): 0.138978
CPU user time (s): 0.134979
CPU system time (s): 0.003999
CPU usage (%): 100.336
Max. virtual memory (cumulated for all children) (KiB): 5340

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.134979
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1154
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= 1

runsolver used 0.007998 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-26 02:00:23
IDJOB=2683525
IDBENCH=72119
IDSOLVER=1161
FILE ID=node025/2683525-1277510423
PBS_JOBID= 11190603
Free space on /tmp= 62308 MiB

SOLVER NAME= wbo 1.4b
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/rand.biglist/normalized-randfe95e3.cudf.paranoid.opb
COMMAND LINE= wbo1.4b -file-format=opb -time-limit=TIMEOUT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683525-1277510423/watcher-2683525-1277510423 -o /tmp/evaluation-result-2683525-1277510423/solver-2683525-1277510423 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2683525-1277510423.opb

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

MD5SUM BENCH= 935dbca81410818c4dfa4090fb07f874
RANDOM SEED=1644066392

node025.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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1833408 kB
Buffers:         29864 kB
Cached:          98796 kB
SwapCached:       6384 kB
Active:          76132 kB
Inactive:        65812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1833408 kB
SwapTotal:     4192956 kB
SwapFree:      4138980 kB
Dirty:            3532 kB
Writeback:          16 kB
AnonPages:       11816 kB
Mapped:          11836 kB
Slab:            61672 kB
PageTables:       4280 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   184224 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-2683525-1277510423.opb

Free space on /tmp at the end= 62304 MiB
End job on node025 at 2010-06-26 02:00:23