Trace number 2684529

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
bsolo 3.2 CardUNSAT 0.083986 0.088503

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j30/
normalized-j3046_4-unsat.opb
MD5SUM194fc06f7c21580ad88e7dc6177066b4
Bench CategoryDEC-SMALLINT-LIN (no 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 benchmark0.064989
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables3968
Total number of constraints13430
Number of constraints which are clauses13178
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints252
Minimum length of a constraint1
Maximum length of a constraint30
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 25
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 187
Number of bits of the biggest sum of numbers8
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 bsolo beta version 3.2 - 23/05/2010 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Learning Strategy: Cardinality Constraint Learning
0.00/0.00	c Instance file HOME/instance-2684529-1278432540.opb
0.00/0.00	c File size is 405196 bytes.
0.01/0.07	c Highest Coefficient sum: 187
0.01/0.07	c Parsing was ok!!
0.01/0.07	c Total parsing time: 0.068 s
0.01/0.08	c Var: 3968 Constr: 13430 13178/0/252 Lit: 35501 Watch. Lit: 32125
0.01/0.08	c Obj. Vars: 0 (0 % of total variables)
0.01/0.08	c CONFLICT DETECTED at PROBING!!!
0.01/0.08	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.01/0.08	c    0        0      0        0    13430    35501      0      0 0.08
0.01/0.08	s UNSATISFIABLE
0.01/0.08	c Total time: 0.082 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-2684529-1278432540/watcher-2684529-1278432540 -o /tmp/evaluation-result-2684529-1278432540/solver-2684529-1278432540 -C 1800 -W 2000 -M 1800 bsolo_pb10 -t1800 -l2 HOME/instance-2684529-1278432540.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: 0.00 0.00 0.00 2/107 22156
/proc/meminfo: memFree=1488164/2059040 swapFree=4192956/4192956
[pid=22156] ppid=22154 vsize=11188 CPUtime=0
/proc/22156/stat : 22156 (bsolo_pb10) R 22154 22156 22084 0 -1 4202496 316 0 0 0 0 0 0 0 18 0 1 0 11465759 11456512 234 1992294400 134512640 137138936 4289516576 18446744073709551615 134531237 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/22156/statm: 2797 234 170 642 0 2054 0

[startup+0.0226139 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 22156
/proc/meminfo: memFree=1488164/2059040 swapFree=4192956/4192956
[pid=22156] ppid=22154 vsize=11604 CPUtime=0.01
/proc/22156/stat : 22156 (bsolo_pb10) R 22154 22156 22084 0 -1 4202496 444 0 0 0 1 0 0 0 18 0 1 0 11465759 11882496 362 1992294400 134512640 137138936 4289516576 18446744073709551615 136488112 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/22156/statm: 2901 362 191 642 0 2158 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 11604

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

[startup+0.0226139 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 22156
/proc/meminfo: memFree=1488164/2059040 swapFree=4192956/4192956
[pid=22156] ppid=22154 vsize=11604 CPUtime=0.01
/proc/22156/stat : 22156 (bsolo_pb10) R 22154 22156 22084 0 -1 4202496 444 0 0 0 1 0 0 0 18 0 1 0 11465759 11882496 362 1992294400 134512640 137138936 4289516576 18446744073709551615 136488112 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/22156/statm: 2901 362 191 642 0 2158 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 11604

Child status: 0
Real time (s): 0.088503
CPU time (s): 0.083986
CPU user time (s): 0.082987
CPU system time (s): 0.000999
CPU usage (%): 94.8962
Max. virtual memory (cumulated for all children) (KiB): 11604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.082987
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1124
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= 0

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node026 at 2010-07-06 18:09:00
IDJOB=2684529
IDBENCH=72884
IDSOLVER=1162
FILE ID=node026/2684529-1278432540
PBS_JOBID= 11233451
Free space on /tmp= 62468 MiB

SOLVER NAME= bsolo 3.2 Card
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j30/normalized-j3046_4-unsat.opb
COMMAND LINE= bsolo_pb10 -tTIMEOUT -l2 BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684529-1278432540/watcher-2684529-1278432540 -o /tmp/evaluation-result-2684529-1278432540/solver-2684529-1278432540 -C 1800 -W 2000 -M 1800  bsolo_pb10 -t1800 -l2 HOME/instance-2684529-1278432540.opb

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

MD5SUM BENCH= 194fc06f7c21580ad88e7dc6177066b4
RANDOM SEED=2057861938

node026.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		: 3000.244
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		: 3000.244
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1489176 kB
Buffers:         99376 kB
Cached:         337640 kB
SwapCached:          0 kB
Active:         164244 kB
Inactive:       332988 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1489176 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4696 kB
Writeback:           0 kB
AnonPages:       60160 kB
Mapped:          14420 kB
Slab:            50668 kB
PageTables:       4220 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   178944 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-2684529-1278432540.opb

Free space on /tmp at the end= 62464 MiB
End job on node026 at 2010-07-06 18:09:00