Trace number 1855102

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
SAT4J Pseudo CP 2.1.1UNSAT 2.97276 1.00447

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/
aloul/FPGA_SAT05/normalized-chnl50_60_pb.cnf.cr.opb
MD5SUM6f530d7030eb010292a76e81381ed552
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 benchmark0.298953
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6000
Total number of constraints220
Number of constraints which are clauses120
Number of constraints which are cardinality constraints (but not clauses)100
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint50
Maximum length of a constraint60
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 61
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.08/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.08/0.14	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.14	c See www.sat4j.org for details.
0.08/0.15	c version 2.1.1.v20090612
0.08/0.15	c sun.arch.data.model	32
0.08/0.15	c java.version	1.6.0_12
0.08/0.15	c os.name	Linux
0.08/0.15	c os.version	2.6.9-22.EL.rootsmp
0.08/0.15	c os.arch	i386
0.08/0.15	c Free memory 1342000320
0.08/0.15	c Max memory 1344274432
0.08/0.15	c Total memory 1344274432
0.08/0.16	c Number of processors 2
0.21/0.22	c Pseudo Boolean Optimization
0.21/0.22	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.21/0.22	c --- Begin Solver configuration ---
0.21/0.22	c Stops conflict analysis at the first Unique Implication Point
0.21/0.22	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@ecd7e
0.21/0.22	c Learn all clauses as in MiniSAT
0.21/0.22	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.21/0.22	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.21/0.22	c No reason simplification
0.21/0.22	c MiniSAT restarts strategy
0.21/0.22	c Memory based learned constraints deletion strategy
0.21/0.22	c timeout=2147483s
0.21/0.22	c DB Simplification allowed=false
0.21/0.22	c --- End Solver configuration ---
0.21/0.22	c solving HOME/instance-1855102-1244866718.opb
0.21/0.22	c reading problem ... 
0.83/0.67	c ... done. Wall clock time 0.452s.
0.83/0.67	c #vars     6000
0.83/0.67	c #constraints  220
0.83/0.67	c constraints type 
0.83/0.67	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 120
0.83/0.67	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 100
1.40/0.97	c starts		: 1
1.40/0.97	c conflicts		: 1
1.40/0.97	c decisions		: 1226
1.40/0.97	c propagations		: 2991
1.40/0.97	c inspects		: 2991
1.40/0.97	c learnt literals	: 0
1.40/0.97	c learnt binary clauses	: 0
1.40/0.97	c learnt ternary clauses	: 0
1.40/0.97	c learnt clauses	: 0
1.40/0.97	c ignored clauses	: 0
1.40/0.97	c root simplifications	: 0
1.40/0.97	c removed literals (reason simplification)	: 0
1.40/0.97	c reason swapping (by a shorter reason)	: 0
1.40/0.97	c Calls to reduceDB	: 0
1.40/0.97	c speed (assignments/second)	: 10243.150684931508
1.40/0.97	c non guided choices	1226
1.40/0.97	c learnt constraints type 
1.40/0.97	c constraints type 
1.40/0.97	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 120
1.40/0.97	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 100
1.40/0.97	s UNSATISFIABLE
1.40/0.97	c Total wall clock time (in seconds): 0.748

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-1855102-1244866718/watcher-1855102-1244866718 -o /tmp/evaluation-result-1855102-1244866718/solver-1855102-1244866718 -C 1800 -W 2000 -M 1800 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1855102-1244866718.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: 1.01 1.00 1.00 3/64 11407
/proc/meminfo: memFree=1297000/2055920 swapFree=4191900/4192956
[pid=11407] ppid=11405 vsize=0 CPUtime=0
/proc/11407/stat : 11407 (runsolver) R 11405 11407 10494 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 154272499 0 0 1992294400 0 0 0 18446744073709551615 215418989863 0 0 4096 24578 0 0 0 17 1 0 0
/proc/11407/statm: 0 0 0 0 0 0 0

[startup+0.0818999 s]
/proc/loadavg: 1.01 1.00 1.00 3/64 11407
/proc/meminfo: memFree=1297000/2055920 swapFree=4191900/4192956
[pid=11407] ppid=11405 vsize=1470220 CPUtime=0.06
/proc/11407/stat : 11407 (java) S 11405 11407 10494 0 -1 0 3427 0 1 0 4 2 0 0 18 0 7 0 154272499 1505505280 3172 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 0 0 0
/proc/11407/statm: 367555 3172 1036 9 0 364906 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1470220

[startup+0.101901 s]
/proc/loadavg: 1.01 1.00 1.00 3/64 11407
/proc/meminfo: memFree=1297000/2055920 swapFree=4191900/4192956
[pid=11407] ppid=11405 vsize=1472584 CPUtime=0.08
/proc/11407/stat : 11407 (java) S 11405 11407 10494 0 -1 0 3592 0 1 0 6 2 0 0 18 0 12 0 154272499 1507926016 3335 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11407/statm: 368146 3335 1066 9 0 365494 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1472584

[startup+0.301923 s]
/proc/loadavg: 1.01 1.00 1.00 3/64 11407
/proc/meminfo: memFree=1297000/2055920 swapFree=4191900/4192956
[pid=11407] ppid=11405 vsize=1474884 CPUtime=0.32
/proc/11407/stat : 11407 (java) S 11405 11407 10494 0 -1 0 5038 0 1 0 29 3 0 0 18 0 12 0 154272499 1510281216 4775 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11407/statm: 368721 4775 1353 9 0 366064 0
Current children cumulated CPU time (s) 0.32
Current children cumulated vsize (KiB) 1474884

[startup+0.70197 s]
/proc/loadavg: 1.01 1.00 1.00 3/64 11407
/proc/meminfo: memFree=1297000/2055920 swapFree=4191900/4192956
[pid=11407] ppid=11405 vsize=1477304 CPUtime=1
/proc/11407/stat : 11407 (java) S 11405 11407 10494 0 -1 0 8036 0 1 0 96 4 0 0 18 0 12 0 154272499 1512759296 7185 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11407/statm: 369326 7185 1405 9 0 366669 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 1477304

############
# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (1.4 s)
# The time of a child was probably not reported to its father.
# (see the two samples below)
# Adding the difference (1.4 s) to the 'lost time'.

[startup+0.901995 s]
/proc/loadavg: 1.01 1.00 1.00 3/64 11407
/proc/meminfo: memFree=1297000/2055920 swapFree=4191900/4192956
[pid=11407] ppid=11405 vsize=1477628 CPUtime=1.4
/proc/11407/stat : 11407 (java) S 11405 11407 10494 0 -1 0 8411 0 1 0 136 4 0 0 18 0 13 0 154272499 1513091072 7380 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11407/statm: 369407 7380 1412 9 0 366750 0
Current children cumulated CPU time (s) 1.4
Current children cumulated vsize (KiB) 1477628

[startup+1.00212 s]
/proc/loadavg: 1.16 1.04 1.01 2/66 11421
/proc/meminfo: memFree=1296536/2055920 swapFree=4191900/4192956
[pid=11407] ppid=-1 vsize=0 CPUtime=0
/proc/11407/stat : -- couldn't open stat file --/proc/11407/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
#
############


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

[startup+0.901995 s]
/proc/loadavg: 1.01 1.00 1.00 3/64 11407
/proc/meminfo: memFree=1297000/2055920 swapFree=4191900/4192956
[pid=11407] ppid=11405 vsize=1477628 CPUtime=1.4
/proc/11407/stat : 11407 (java) S 11405 11407 10494 0 -1 0 8411 0 1 0 136 4 0 0 18 0 13 0 154272499 1513091072 7380 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/11407/statm: 369407 7380 1412 9 0 366750 0
Current children cumulated CPU time (s) 1.4
Current children cumulated vsize (KiB) 1477628

[startup+1.00212 s]
/proc/loadavg: 1.16 1.04 1.01 2/66 11421
/proc/meminfo: memFree=1296536/2055920 swapFree=4191900/4192956
[pid=11407] ppid=-1 vsize=0 CPUtime=0
/proc/11407/stat : -- couldn't open stat file --/proc/11407/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child status: 20

# WARNING:
# The CPU time of some children was not reported to their father
# (probably because of a missing or aborted wait()).
# This 'lost CPU time' is added to the watched process CPU time.
#  lost CPU time (s): 1.4
#  lost CPU user time (s): 1.36
#  lost CPU system time (s): 0.04

Real time (s): 1.00447
CPU time (s): 2.97276
CPU user time (s): 2.88077
CPU system time (s): 0.091992
CPU usage (%): 295.955
Max. virtual memory (cumulated for all children) (KiB): 1478108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.52077
system time used= 0.051992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8601
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 260
involuntary context switches= 202

runsolver used 0.001999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node9 at 2009-06-13 06:18:38
IDJOB=1855102
IDBENCH=1402
IDSOLVER=681
FILE ID=node9/1855102-1244866718
PBS_JOBID= 9354331
Free space on /tmp= 66200 MiB

SOLVER NAME= SAT4J Pseudo CP 2.1.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-chnl50_60_pb.cnf.cr.opb
COMMAND LINE= java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1855102-1244866718/watcher-1855102-1244866718 -o /tmp/evaluation-result-1855102-1244866718/solver-1855102-1244866718 -C 1800 -W 2000 -M 1800  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1855102-1244866718.opb

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

MD5SUM BENCH= 6f530d7030eb010292a76e81381ed552
RANDOM SEED=741133546

node9.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.231
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.231
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1297480 kB
Buffers:         56560 kB
Cached:         618012 kB
SwapCached:        260 kB
Active:          40912 kB
Inactive:       646448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1297480 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:             380 kB
Writeback:           0 kB
Mapped:          22000 kB
Slab:            57092 kB
Committed_AS:   129108 kB
PageTables:       1392 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66200 MiB
End job on node9 at 2009-06-13 06:18:39