Trace number 3463451

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 3.2SAT 0.620904 0.621252

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/
FPGA_SAT05/normalized-fpga25_23_sat_pb.cnf.cr.opb
MD5SUMf5648c05fd08b8fac6342afd4b5bd61d
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.087985
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables863
Total number of constraints646
Number of constraints which are clauses598
Number of constraints which are cardinality constraints (but not clauses)48
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint12
Maximum length of a constraint25
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 26
Number of bits of the biggest sum of numbers5
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 Learning Strategy: Cardinality Constraint Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Instance file HOME/instance-3463451-1307175313.opb
0.00/0.00	c File size is 73543 bytes.
0.00/0.00	c Highest Coefficient sum: 26
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.004 s
0.00/0.00	c Var: 863 Constr: 646 598/48/0 Lit: 8637 Watch. Lit: 2059
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.01	c Pre-processing Time: 0.016 s
0.00/0.01	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.01	c        0    863      646     8637   13     2059    5523      0      0 0.02
0.00/0.01	c Switching off lower bounding mode.
0.59/0.62	c      100    863      764    20770   27     2702    6076    118   2941 0.03
0.59/0.62	c      250    863      922    47980   52     3815    6684    276   3424 0.07
0.59/0.62	c      477    863     1198    68441   57     5689    7353    552   4586 0.10
0.59/0.62	c      815    863     1560   123521   79     7592    8089    914   4222 0.19
0.59/0.62	c     1324    863     2167   180405   83     9701    8898   1521   4565 0.29
0.59/0.62	c     2087    863     2957   333140  112    11415    9788   2311   3561 0.59
0.59/0.62	c Backtracks by Clause: 2093
0.59/0.62	c Backtracks by PB constraint: 90
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-x70 -x291 -x281 -x283 -x286 -x288 -x297 -x299 
0.59/0.62	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.59/0.62	c    6     2183    827    18469     3057   344056   2411   3526 0.62
0.59/0.62	s SATISFIABLE
0.59/0.62	c Total time: 0.619 s

Verifier Data 

OK	0

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3463451-1307175313/watcher-3463451-1307175313 -o /tmp/evaluation-result-3463451-1307175313/solver-3463451-1307175313 -C 1800 -W 1900 -M 15500 bsolo -l2 -t1800 HOME/instance-3463451-1307175313.opb 

running on 4 cores: 0,2,4,6

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): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.36 1.56 1.80 2/550 31697
/proc/meminfo: memFree=20883524/32951124 swapFree=53733252/67111528
[pid=31697] ppid=31695 vsize=11184 CPUtime=0.01 cores=0,2,4,6
/proc/31697/stat : 31697 (bsolo) R 31695 31697 29102 0 -1 4202496 410 0 0 0 1 0 0 0 25 0 1 0 829131692 11452416 347 33554432000 134512640 137138936 4286619616 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 4 0 0 0
/proc/31697/statm: 2796 347 192 642 0 2152 0

[startup+0.0359451 s]
/proc/loadavg: 1.36 1.56 1.80 2/550 31697
/proc/meminfo: memFree=20883524/32951124 swapFree=53733252/67111528
[pid=31697] ppid=31695 vsize=11184 CPUtime=0.03 cores=0,2,4,6
/proc/31697/stat : 31697 (bsolo) R 31695 31697 29102 0 -1 4202496 426 0 0 0 3 0 0 0 25 0 1 0 829131692 11452416 363 33554432000 134512640 137138936 4286619616 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 4 0 0 0
/proc/31697/statm: 2796 363 192 642 0 2152 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 11184

[startup+0.100963 s]
/proc/loadavg: 1.36 1.56 1.80 2/550 31697
/proc/meminfo: memFree=20883524/32951124 swapFree=53733252/67111528
[pid=31697] ppid=31695 vsize=11896 CPUtime=0.09 cores=0,2,4,6
/proc/31697/stat : 31697 (bsolo) R 31695 31697 29102 0 -1 4202496 583 0 0 0 9 0 0 0 25 0 1 0 829131692 12181504 520 33554432000 134512640 137138936 4286619616 18446744073709551615 134606982 0 0 4096 16384 0 0 0 17 4 0 0 0
/proc/31697/statm: 2974 520 192 642 0 2330 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11896

[startup+0.300925 s]
/proc/loadavg: 1.36 1.56 1.80 2/550 31697
/proc/meminfo: memFree=20883524/32951124 swapFree=53733252/67111528
[pid=31697] ppid=31695 vsize=13576 CPUtime=0.29 cores=0,2,4,6
/proc/31697/stat : 31697 (bsolo) R 31695 31697 29102 0 -1 4202496 1008 0 0 0 29 0 0 0 25 0 1 0 829131692 13901824 945 33554432000 134512640 137138936 4286619616 18446744073709551615 136577166 0 0 4096 16384 0 0 0 17 4 0 0 0
/proc/31697/statm: 3394 945 192 642 0 2750 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13576

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

[startup+0.500887 s]
/proc/loadavg: 1.36 1.56 1.80 2/550 31697
/proc/meminfo: memFree=20883524/32951124 swapFree=53733252/67111528
[pid=31697] ppid=31695 vsize=15072 CPUtime=0.49 cores=0,2,4,6
/proc/31697/stat : 31697 (bsolo) R 31695 31697 29102 0 -1 4202496 1379 0 0 0 49 0 0 0 25 0 1 0 829131692 15433728 1316 33554432000 134512640 137138936 4286619616 18446744073709551615 136504020 0 0 4096 16384 0 0 0 17 4 0 0 0
/proc/31697/statm: 3768 1316 192 642 0 3124 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 15072

[startup+0.600863 s]
/proc/loadavg: 1.36 1.56 1.80 2/550 31697
/proc/meminfo: memFree=20883524/32951124 swapFree=53733252/67111528
[pid=31697] ppid=31695 vsize=15520 CPUtime=0.59 cores=0,2,4,6
/proc/31697/stat : 31697 (bsolo) R 31695 31697 29102 0 -1 4202496 1513 0 0 0 59 0 0 0 25 0 1 0 829131692 15892480 1450 33554432000 134512640 137138936 4286619616 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 4 0 0 0
/proc/31697/statm: 3880 1450 192 642 0 3236 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 15520

Child status: 0
Real time (s): 0.621252
CPU time (s): 0.620904
CPU user time (s): 0.613906
CPU system time (s): 0.006998
CPU usage (%): 99.944
Max. virtual memory (cumulated for all children) (KiB): 15520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.613906
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1546
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= 2

runsolver used 0.012998 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node106 at 2011-06-04 10:15:13
IDJOB=3463451
IDBENCH=1400
IDSOLVER=1955
FILE ID=node106/3463451-1307175313
RUNJOBID= node106-1307175287-31541
PBS_JOBID= 13508822
Free space on /tmp= 73724 MiB

SOLVER NAME= bsolo 3.2
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-fpga25_23_sat_pb.cnf.cr.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3463451-1307175313/watcher-3463451-1307175313 -o /tmp/evaluation-result-3463451-1307175313/solver-3463451-1307175313 -C 1800 -W 1900 -M 15500  bsolo -l2 -t1800 HOME/instance-3463451-1307175313.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= f5648c05fd08b8fac6342afd4b5bd61d
RANDOM SEED=1882282939

node106.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	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.66
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5226.20
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20883804 kB
Buffers:        398920 kB
Cached:        6048872 kB
SwapCached:      22744 kB
Active:        6160752 kB
Inactive:      5564196 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20883804 kB
SwapTotal:    67111528 kB
SwapFree:     53733252 kB
Dirty:           42124 kB
Writeback:           0 kB
AnonPages:     5273252 kB
Mapped:          27144 kB
Slab:           192944 kB
PageTables:      78328 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 167766764 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73720 MiB
End job on node106 at 2011-06-04 10:15:14