Trace number 2655694

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 0.563914 0.563758

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-ooo.tag8.ucl.opb
MD5SUMec41e051a85a6b1d97ef15d7e169228d
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 benchmark0.563914
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables3249
Total number of constraints8983
Number of constraints which are clauses8599
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints384
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-2655694-1276337690.opb.
0.00/0.00	c Instance file HOME/instance-2655694-1276337690.opb
0.00/0.00	c File size is 268357 bytes.
0.00/0.04	c Highest Coefficient sum: 126
0.00/0.04	c ============================[ Problem Statistics ]=============================
0.00/0.04	c |                                                                             |
0.00/0.04	c |  Parsing time:          0.04         s                                      |
0.00/0.04	c |  Number Variables:      3249                                                |
0.00/0.04	c |  Number Clauses:        8599                                                |
0.00/0.04	c |  Number Cardinality:    0                                                   |
0.00/0.04	c |  Number PB Constraints: 384                                                 |
0.00/0.04	c ============================[ Search Statistics ]==============================
0.00/0.04	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.04	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.04	c ===============================================================================
0.00/0.04	c |         0 |    3236     8983    23912 |     5000        0    nan |  0.000 % |
0.00/0.06	c |       100 |    3236     8983    23912 |     5500      100     23 |  0.400 % |
0.00/0.08	c |       255 |    3236     8983    23912 |     6050      255     22 |  0.400 % |
0.09/0.11	c |       480 |    3236     8983    23912 |     6655      480     21 |  0.400 % |
0.09/0.18	c |       819 |    3236     8983    23912 |     7320      819     23 |  0.400 % |
0.19/0.29	c |      1325 |    3235     8983    23912 |     8052      492     18 |  0.431 % |
0.39/0.45	c |      2084 |    3235     8983    23912 |     8857     1251     18 |  0.431 % |
0.49/0.56	c ===============================================================================
0.49/0.56	c core #1
0.49/0.56	c Memory used           : 4.06 MB
0.49/0.56	c CPU time              : 0.558915 s
0.49/0.56	c 
0.49/0.56	s UNSATISFIABLE
0.49/0.56	c Total CPU time: 0.558915 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-2655694-1276337690/watcher-2655694-1276337690 -o /tmp/evaluation-result-2655694-1276337690/solver-2655694-1276337690 -C 1800 -W 2000 -M 1800 wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655694-1276337690.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: 0.85 0.98 0.99 3/106 10016
/proc/meminfo: memFree=1497232/2059040 swapFree=4192956/4192956
[pid=10016] ppid=10014 vsize=2980 CPUtime=0
/proc/10016/stat : 10016 (wbo1.4a) R 10014 10016 9991 0 -1 4202496 305 0 0 0 0 0 0 0 21 0 1 0 9372884 3051520 223 1992294400 134512640 135751879 4291177648 18446744073709551615 135206651 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/10016/statm: 745 223 139 303 0 374 0

[startup+0.0935871 s]
/proc/loadavg: 0.85 0.98 0.99 3/106 10016
/proc/meminfo: memFree=1497232/2059040 swapFree=4192956/4192956
[pid=10016] ppid=10014 vsize=3760 CPUtime=0.09
/proc/10016/stat : 10016 (wbo1.4a) R 10014 10016 9991 0 -1 4202496 629 0 0 0 9 0 0 0 21 0 1 0 9372884 3850240 481 1992294400 134512640 135751879 4291177648 18446744073709551615 134607708 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/10016/statm: 940 481 143 303 0 635 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3760

[startup+0.101587 s]
/proc/loadavg: 0.85 0.98 0.99 3/106 10016
/proc/meminfo: memFree=1497232/2059040 swapFree=4192956/4192956
[pid=10016] ppid=10014 vsize=3760 CPUtime=0.09
/proc/10016/stat : 10016 (wbo1.4a) R 10014 10016 9991 0 -1 4202496 631 0 0 0 9 0 0 0 21 0 1 0 9372884 3850240 483 1992294400 134512640 135751879 4291177648 18446744073709551615 134517421 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/10016/statm: 940 483 143 303 0 635 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3760

[startup+0.301606 s]
/proc/loadavg: 0.85 0.98 0.99 3/106 10016
/proc/meminfo: memFree=1497232/2059040 swapFree=4192956/4192956
[pid=10016] ppid=10014 vsize=3892 CPUtime=0.29
/proc/10016/stat : 10016 (wbo1.4a) R 10014 10016 9991 0 -1 4202496 674 0 0 0 29 0 0 0 21 0 1 0 9372884 3985408 526 1992294400 134512640 135751879 4291177648 18446744073709551615 134607728 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/10016/statm: 973 526 143 303 0 668 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3892

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

[startup+0.501625 s]
/proc/loadavg: 0.85 0.98 0.99 3/106 10016
/proc/meminfo: memFree=1497232/2059040 swapFree=4192956/4192956
[pid=10016] ppid=10014 vsize=4024 CPUtime=0.49
/proc/10016/stat : 10016 (wbo1.4a) R 10014 10016 9991 0 -1 4202496 716 0 0 0 49 0 0 0 21 0 1 0 9372884 4120576 568 1992294400 134512640 135751879 4291177648 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/10016/statm: 1006 568 143 303 0 701 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 4024

Child status: 0
Real time (s): 0.563758
CPU time (s): 0.563914
CPU user time (s): 0.558915
CPU system time (s): 0.004999
CPU usage (%): 100.028
Max. virtual memory (cumulated for all children) (KiB): 4024

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.558915
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 729
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= 2
involuntary context switches= 4

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node004 at 2010-06-12 12:14:50
IDJOB=2655694
IDBENCH=1480
IDSOLVER=1160
FILE ID=node004/2655694-1276337690
PBS_JOBID= 11173186
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.tag8.ucl.opb
COMMAND LINE= wbo1.4a -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2655694-1276337690/watcher-2655694-1276337690 -o /tmp/evaluation-result-2655694-1276337690/solver-2655694-1276337690 -C 1800 -W 2000 -M 1800  wbo1.4a -file-format=opb -time-limit=1800 HOME/instance-2655694-1276337690.opb

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

MD5SUM BENCH= ec41e051a85a6b1d97ef15d7e169228d
RANDOM SEED=1750671030

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:       1497884 kB
Buffers:        113588 kB
Cached:         318380 kB
SwapCached:          0 kB
Active:         181168 kB
Inactive:       310008 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1497884 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3052 kB
Writeback:           0 kB
AnonPages:       59216 kB
Mapped:          15340 kB
Slab:            48292 kB
PageTables:       4024 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179576 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 12:14:51