Trace number 3731233

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 NameAnswerobjective functionCPU timeWall clock time
PB09: SAT4J Pseudo Resolution 2.1.1OPT9 0.262959 0.176114

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-stein15.opb
MD5SUM66058552315b3ad2be1ad6cd88919092
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark9
Best CPU time to get the best result obtained on this benchmark0.000999
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 9
Optimality of the best value was proved YES
Number of variables15
Total number of constraints36
Number of constraints which are clauses35
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint3
Maximum length of a constraint15
Number of terms in the objective function 15
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 15
Number of bits of the sum of numbers in the objective function 4
Biggest number in a constraint 7
Number of bits of the biggest number in a constraint 3
Biggest sum of numbers in a constraint 22
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 

0.00/0.06	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.00/0.06	c This is free software under the dual EPL/GNU LGPL licenses.
0.00/0.06	c See www.sat4j.org for details.
0.00/0.07	c version 2.1.1.v20090612
0.00/0.07	c sun.arch.data.model	64
0.00/0.07	c java.version	1.6.0_24
0.00/0.07	c os.name	Linux
0.00/0.07	c os.version	2.6.32-71.29.1.el6.x86_64
0.00/0.07	c os.arch	amd64
0.00/0.07	c Free memory 1299577560
0.00/0.07	c Max memory 1306394624
0.00/0.07	c Total memory 1306394624
0.00/0.07	c Number of processors 8
0.00/0.09	c Pseudo Boolean Optimization
0.00/0.09	c --- Begin Solver configuration ---
0.00/0.09	c Stops conflict analysis at the first Unique Implication Point
0.00/0.09	c org.sat4j.pb.constraints.CompetResolutionPBMixedHTClauseCardConstrDataStructure@6abf2d5e
0.00/0.09	c Learn all clauses as in MiniSAT
0.00/0.09	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.00/0.09	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.00/0.09	c Expensive reason simplification
0.00/0.09	c MiniSAT restarts strategy
0.00/0.09	c Memory based learned constraints deletion strategy
0.00/0.09	c timeout=2147483s
0.00/0.09	c DB Simplification allowed=false
0.00/0.09	c --- End Solver configuration ---
0.00/0.09	c solving HOME/instance-3731233-1338737417.opb
0.00/0.09	c reading problem ... 
0.11/0.11	c ... done. Wall clock time 0.013s.
0.11/0.11	c #vars     15
0.11/0.11	c #constraints  36
0.11/0.11	c constraints type 
0.11/0.11	c org.sat4j.minisat.constraints.card.MinWatchCard => 1
0.11/0.11	c org.sat4j.minisat.constraints.cnf.OriginalHTClause => 35
0.11/0.11	c SATISFIABLE
0.11/0.11	c OPTIMIZING...
0.11/0.11	c Got one! Elapsed wall clock time (in seconds):0.016
0.11/0.11	o 9
0.11/0.16	c starts		: 4
0.11/0.16	c conflicts		: 312
0.11/0.16	c decisions		: 330
0.11/0.16	c propagations		: 1388
0.11/0.16	c inspects		: 14277
0.11/0.16	c learnt literals	: 6
0.11/0.16	c learnt binary clauses	: 18
0.11/0.16	c learnt ternary clauses	: 41
0.11/0.16	c learnt clauses	: 305
0.11/0.16	c ignored clauses	: 0
0.11/0.16	c root simplifications	: 0
0.11/0.16	c removed literals (reason simplification)	: 677
0.11/0.16	c reason swapping (by a shorter reason)	: 0
0.11/0.16	c Calls to reduceDB	: 0
0.11/0.16	c speed (assignments/second)	: 27760.0
0.11/0.16	c non guided choices	0
0.11/0.16	c learnt constraints type 
0.11/0.16	c constraints type 
0.11/0.16	c org.sat4j.minisat.constraints.card.MinWatchCard => 1
0.11/0.16	c org.sat4j.minisat.constraints.cnf.OriginalHTClause => 35
0.11/0.16	s OPTIMUM FOUND
0.11/0.16	v -x1 x2 x3 x4 x5 x6 x7 x8 -x9 -x10 -x11 x12 x13 -x14 -x15 
0.11/0.16	c objective function=9
0.11/0.16	c Total wall clock time (in seconds): 0.066

Verifier Data 

OK	9

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

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-3731233-1338737417/watcher-3731233-1338737417 -o /tmp/evaluation-result-3731233-1338737417/solver-3731233-1338737417 -C 1800 -W 1900 -M 15500 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-3731233-1338737417.opb 

running on 4 cores: 1,3,5,7

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: 1.99 1.98 1.99 3/195 26326
/proc/meminfo: memFree=25481856/32873648 swapFree=6864/6864
[pid=26326] ppid=26324 vsize=23236 CPUtime=0 cores=1,3,5,7
/proc/26326/stat : 26326 (java) R 26324 26326 12644 0 -1 4202496 982 0 0 0 0 0 0 0 20 0 1 0 339867101 23793664 708 33554432000 1073741824 1073778376 140736834491872 140736834480936 270698330192 0 0 4096 0 0 0 0 17 5 0 0 0 0 0
/proc/26326/statm: 5809 708 522 9 0 128 0

[startup+0.011909 s]
/proc/loadavg: 1.99 1.98 1.99 3/195 26326
/proc/meminfo: memFree=25481856/32873648 swapFree=6864/6864
[pid=26326] ppid=26324 vsize=1570520 CPUtime=0 cores=1,3,5,7
/proc/26326/stat : 26326 (java) S 26324 26326 12644 0 -1 4202496 1747 0 1 0 0 0 0 0 20 0 2 0 339867101 1608212480 1937 33554432000 1073741824 1073778376 140736834491872 140736834483008 270710898749 0 0 0 16784584 18446744073709551615 0 0 17 5 0 0 0 0 0
/proc/26326/statm: 392630 1937 941 9 0 383739 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1570520

[startup+0.100139 s]
/proc/loadavg: 1.99 1.98 1.99 3/195 26326
/proc/meminfo: memFree=25481856/32873648 swapFree=6864/6864
[pid=26326] ppid=26324 vsize=2648568 CPUtime=0.11 cores=1,3,5,7
/proc/26326/stat : 26326 (java) S 26324 26326 12644 0 -1 4202496 4751 0 1 0 10 1 0 0 20 0 18 0 339867101 2712133632 6974 33554432000 1073741824 1073778376 140736834491872 140736834483008 270710898749 0 0 0 16800975 18446744073709551615 0 0 17 5 0 0 0 0 0
/proc/26326/statm: 662142 6974 2142 9 0 652835 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 2648568

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

Child status: 30
Real time (s): 0.176114
CPU time (s): 0.262959
CPU user time (s): 0.211967
CPU system time (s): 0.050992
CPU usage (%): 149.312
Max. virtual memory (cumulated for all children) (KiB): 2648568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.211967
system time used= 0.050992
maximum resident set size= 35392
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6645
page faults= 1
swaps= 0
block input operations= 0
block output operations= 64
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 176
involuntary context switches= 18

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node125 at 2012-06-03 17:30:17
IDJOB=3731233
IDBENCH=1864
IDSOLVER=2322
FILE ID=node125/3731233-1338737417
RUNJOBID= node125-1338733534-25307
PBS_JOBID= 14636751
Free space on /tmp= 70444 MiB

SOLVER NAME= PB09: SAT4J Pseudo Resolution 2.1.1
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-stein15.opb
COMMAND LINE= java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3731233-1338737417/watcher-3731233-1338737417 -o /tmp/evaluation-result-3731233-1338737417/solver-3731233-1338737417 -C 1800 -W 1900 -M 15500  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-3731233-1338737417.opb

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

MD5SUM BENCH= 66058552315b3ad2be1ad6cd88919092
RANDOM SEED=1368336242

node125.alineos.net Linux 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011

/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		: 2666.373
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.92
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.90
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5438.54
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.373
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873648 kB
MemFree:        25482128 kB
Buffers:          613356 kB
Cached:          5087664 kB
SwapCached:         2308 kB
Active:          3263448 kB
Inactive:        3213660 kB
Active(anon):     766960 kB
Inactive(anon):     9240 kB
Active(file):    2496488 kB
Inactive(file):  3204420 kB
Unevictable:        6864 kB
Mlocked:            6864 kB
SwapTotal:      67108856 kB
SwapFree:       67102524 kB
Dirty:               348 kB
Writeback:             0 kB
AnonPages:        784836 kB
Mapped:            22492 kB
Shmem:                96 kB
Slab:             769172 kB
SReclaimable:     212464 kB
SUnreclaim:       556708 kB
KernelStack:        1640 kB
PageTables:         5548 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545680 kB
Committed_AS:    1516820 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346400 kB
VmallocChunk:   34341988052 kB
HardwareCorrupted:     0 kB
AnonHugePages:    739328 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7680 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 70440 MiB
End job on node125 at 2012-06-03 17:30:17