Trace number 2655693

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 0.249961 0.249968

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
MD5SUMd30cbdfbaf2c404a9c4e9217e33c734d
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 benchmark0.249961
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6392
Total number of constraints18058
Number of constraints which are clauses17278
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints780
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-2655693-1276336654.opb.
0.00/0.00	c Instance file HOME/instance-2655693-1276336654.opb
0.00/0.00	c File size is 551974 bytes.
0.04/0.08	c Highest Coefficient sum: 126
0.04/0.08	c ============================[ Problem Statistics ]=============================
0.04/0.08	c |                                                                             |
0.04/0.08	c |  Parsing time:          0.08         s                                      |
0.04/0.08	c |  Number Variables:      6392                                                |
0.04/0.08	c |  Number Clauses:        17278                                               |
0.04/0.08	c |  Number Cardinality:    0                                                   |
0.04/0.08	c |  Number PB Constraints: 780                                                 |
0.04/0.08	c ============================[ Search Statistics ]==============================
0.04/0.08	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.04/0.08	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.04/0.08	c ===============================================================================
0.04/0.08	c |         0 |    6388    18058    48383 |     6019        0    nan |  0.000 % |
0.09/0.10	c |       100 |    6388    18058    48383 |     6621      100     13 |  0.063 % |
0.09/0.13	c |       251 |    6388    18058    48383 |     7283      251     17 |  0.063 % |
0.09/0.17	c |       477 |    4827    18058    48383 |     8011      384     16 | 24.532 % |
0.19/0.23	c |       814 |    4816    18058    48383 |     8812      684     15 | 28.412 % |
0.19/0.24	c ===============================================================================
0.19/0.24	c core #1
0.19/0.24	c Memory used           : 4.98 MB
0.19/0.24	c CPU time              : 0.231964 s
0.19/0.24	c 
0.19/0.24	s UNSATISFIABLE
0.19/0.24	c Total CPU time: 0.231964 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-2655693-1276336654/watcher-2655693-1276336654 -o /tmp/evaluation-result-2655693-1276336654/solver-2655693-1276336654 -C 1800 -W 2000 -M 1800 wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655693-1276336654.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 1.00 1.00 2/106 9276
/proc/meminfo: memFree=1509168/2059040 swapFree=4192956/4192956
[pid=9276] ppid=9274 vsize=3248 CPUtime=0
/proc/9276/stat : 9276 (wbo1.4a) R 9274 9276 8410 0 -1 4202496 304 0 0 0 0 0 0 0 21 0 1 0 9267196 3325952 223 1992294400 134512640 135751879 4288679920 18446744073709551615 134573749 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9276/statm: 812 223 139 303 0 372 0

[startup+0.0480929 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 9276
/proc/meminfo: memFree=1509168/2059040 swapFree=4192956/4192956
[pid=9276] ppid=9274 vsize=4396 CPUtime=0.04
/proc/9276/stat : 9276 (wbo1.4a) R 9274 9276 8410 0 -1 4202496 647 0 0 0 4 0 0 0 21 0 1 0 9267196 4501504 566 1992294400 134512640 135751879 4288679920 18446744073709551615 135397033 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9276/statm: 1099 566 206 303 0 659 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4396

[startup+0.101098 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 9276
/proc/meminfo: memFree=1509168/2059040 swapFree=4192956/4192956
[pid=9276] ppid=9274 vsize=4960 CPUtime=0.09
/proc/9276/stat : 9276 (wbo1.4a) R 9274 9276 8410 0 -1 4202496 965 0 0 0 9 0 0 0 23 0 1 0 9267196 5079040 749 1992294400 134512640 135751879 4288679920 18446744073709551615 134611176 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9276/statm: 1240 749 142 303 0 935 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4960

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

[startup+0.20111 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 9276
/proc/meminfo: memFree=1509168/2059040 swapFree=4192956/4192956
[pid=9276] ppid=9274 vsize=5092 CPUtime=0.19
/proc/9276/stat : 9276 (wbo1.4a) R 9274 9276 8410 0 -1 4202496 990 0 0 0 18 1 0 0 23 0 1 0 9267196 5214208 774 1992294400 134512640 135751879 4288679920 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/9276/statm: 1273 774 143 303 0 968 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 5092

Child status: 0
Real time (s): 0.249968
CPU time (s): 0.249961
CPU user time (s): 0.231964
CPU system time (s): 0.017997
CPU usage (%): 99.9972
Max. virtual memory (cumulated for all children) (KiB): 5092

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.231964
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1005
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 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-12 11:57:34
IDJOB=2655693
IDBENCH=1478
IDSOLVER=1160
FILE ID=node009/2655693-1276336654
PBS_JOBID= 11173169
Free space on /tmp= 62444 MiB

SOLVER NAME= wbo 1.4a
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
COMMAND LINE= wbo1.4a -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2655693-1276336654/watcher-2655693-1276336654 -o /tmp/evaluation-result-2655693-1276336654/solver-2655693-1276336654 -C 1800 -W 2000 -M 1800  wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655693-1276336654.opb

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

MD5SUM BENCH= d30cbdfbaf2c404a9c4e9217e33c734d
RANDOM SEED=1935231122

node009.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		: 3000.199
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	: 6000.39
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		: 3000.199
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:       1509696 kB
Buffers:        101384 kB
Cached:         319528 kB
SwapCached:          0 kB
Active:         177384 kB
Inactive:       302728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1509696 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3252 kB
Writeback:           0 kB
AnonPages:       59132 kB
Mapped:          15460 kB
Slab:            47356 kB
PageTables:       4036 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179572 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= 62440 MiB
End job on node009 at 2010-06-12 11:57:35