Trace number 2655687

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 NameAnswerCPU timeWall clock time
wbo 1.4aUNSAT 0.121981 0.121453

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-ooo.rf7.ucl.opb
MD5SUM959fbe15545355cb65c359cdf131bbdc
Bench CategoryDEC-SMALLINT (no optimisation, small 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 benchmark0.121981
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables3736
Total number of constraints10457
Number of constraints which are clauses10089
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints368
Minimum length of a constraint1
Maximum length of a constraint11
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
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-2655687-1276335554.opb.
0.00/0.00	c Instance file HOME/instance-2655687-1276335554.opb
0.00/0.00	c File size is 309877 bytes.
0.03/0.04	c Highest Coefficient sum: 126
0.03/0.04	c ============================[ Problem Statistics ]=============================
0.03/0.04	c |                                                                             |
0.03/0.04	c |  Parsing time:          0.05         s                                      |
0.03/0.04	c |  Number Variables:      3736                                                |
0.03/0.04	c |  Number Clauses:        10089                                               |
0.03/0.04	c |  Number Cardinality:    0                                                   |
0.03/0.04	c |  Number PB Constraints: 368                                                 |
0.03/0.04	c ============================[ Search Statistics ]==============================
0.03/0.04	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.03/0.04	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.03/0.04	c ===============================================================================
0.03/0.04	c |         0 |    3716    10457    27300 |     5000        0    nan |  0.000 % |
0.03/0.07	c |       100 |    3707    10457    27300 |     5500       99     11 |  0.776 % |
0.09/0.10	c |       250 |    3667    10457    27300 |     6050      235     12 |  1.847 % |
0.09/0.12	c ===============================================================================
0.09/0.12	c core #1
0.09/0.12	c Memory used           : 3.82 MB
0.09/0.12	c CPU time              : 0.117982 s
0.09/0.12	c 
0.09/0.12	s UNSATISFIABLE
0.09/0.12	c Total CPU time: 0.117982 s

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-2655687-1276335554/watcher-2655687-1276335554 -o /tmp/evaluation-result-2655687-1276335554/solver-2655687-1276335554 -C 1800 -W 2000 -M 1800 wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655687-1276335554.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: 1.13 1.06 1.02 3/106 9356
/proc/meminfo: memFree=1500916/2059040 swapFree=4192956/4192956
[pid=9356] ppid=9354 vsize=3012 CPUtime=0
/proc/9356/stat : 9356 (wbo1.4a) R 9354 9356 7869 0 -1 4202496 302 0 0 0 0 0 0 0 20 0 1 0 9159279 3084288 220 1992294400 134512640 135751879 4291846528 18446744073709551615 135206651 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9356/statm: 753 220 139 303 0 372 0

[startup+0.0416119 s]
/proc/loadavg: 1.13 1.06 1.02 3/106 9356
/proc/meminfo: memFree=1500916/2059040 swapFree=4192956/4192956
[pid=9356] ppid=9354 vsize=3780 CPUtime=0.03
/proc/9356/stat : 9356 (wbo1.4a) R 9354 9356 7869 0 -1 4202496 568 0 0 0 3 0 0 0 20 0 1 0 9159279 3870720 486 1992294400 134512640 135751879 4291846528 18446744073709551615 135225248 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9356/statm: 945 486 195 303 0 564 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3780

[startup+0.100617 s]
/proc/loadavg: 1.13 1.06 1.02 3/106 9356
/proc/meminfo: memFree=1500916/2059040 swapFree=4192956/4192956
[pid=9356] ppid=9354 vsize=3912 CPUtime=0.09
/proc/9356/stat : 9356 (wbo1.4a) R 9354 9356 7869 0 -1 4202496 674 0 0 0 9 0 0 0 20 0 1 0 9159279 4005888 516 1992294400 134512640 135751879 4291846528 18446744073709551615 134616482 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9356/statm: 978 516 143 303 0 673 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3912

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

Child status: 0
Real time (s): 0.121453
CPU time (s): 0.121981
CPU user time (s): 0.117982
CPU system time (s): 0.003999
CPU usage (%): 100.435
Max. virtual memory (cumulated for all children) (KiB): 3912

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.117982
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= 678
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 0.003999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node004 at 2010-06-12 11:39:14
IDJOB=2655687
IDBENCH=1471
IDSOLVER=1160
FILE ID=node004/2655687-1276335554
PBS_JOBID= 11173167
Free space on /tmp= 62536 MiB

SOLVER NAME= wbo 1.4a
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-ooo.rf7.ucl.opb
COMMAND LINE= wbo1.4a -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2655687-1276335554/watcher-2655687-1276335554 -o /tmp/evaluation-result-2655687-1276335554/solver-2655687-1276335554 -C 1800 -W 2000 -M 1800  wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655687-1276335554.opb

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

MD5SUM BENCH= 959fbe15545355cb65c359cdf131bbdc
RANDOM SEED=1794865019

node004.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		: 3000.210
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	: 6000.42
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		: 3000.210
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1501320 kB
Buffers:        111436 kB
Cached:         316936 kB
SwapCached:          0 kB
Active:         180660 kB
Inactive:       307052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1501320 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3368 kB
Writeback:           0 kB
AnonPages:       59272 kB
Mapped:          15428 kB
Slab:            48184 kB
PageTables:       4020 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181084 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= 62536 MiB
End job on node004 at 2010-06-12 11:39:14