Trace number 1856209

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 NameAnswerobjCPU timeWall clock time
SAT4J Pseudo Resolution 2.1.1UNSAT 2.28165 1.51274

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-brandy.opb
MD5SUM913c17bb7faa6362a8688d6500a7e54d
Bench CategoryOPT-BIGINT (optimisation, big 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 benchmark2.28165
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables7470
Total number of constraints182
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints182
Minimum length of a constraint30
Maximum length of a constraint3540
Number of terms in the objective function 60
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 2147483646
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 10936060477440
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 138160507849056
Number of bits of the biggest sum of numbers47
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.09/0.13	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.09/0.13	c This is free software under the dual EPL/GNU LGPL licenses.
0.09/0.13	c See www.sat4j.org for details.
0.09/0.15	c version 2.1.1.v20090612
0.09/0.15	c sun.arch.data.model	32
0.09/0.15	c java.version	1.6.0_12
0.09/0.15	c os.name	Linux
0.09/0.15	c os.version	2.6.9-22.EL.rootsmp
0.09/0.15	c os.arch	i386
0.09/0.15	c Free memory 1342000320
0.09/0.15	c Max memory 1344274432
0.09/0.15	c Total memory 1344274432
0.09/0.15	c Number of processors 2
0.23/0.21	c Pseudo Boolean Optimization
0.23/0.21	c --- Begin Solver configuration ---
0.23/0.21	c Stops conflict analysis at the first Unique Implication Point
0.23/0.21	c org.sat4j.pb.constraints.CompetResolutionPBMixedHTClauseCardConstrDataStructure@64dc11
0.23/0.21	c Learn all clauses as in MiniSAT
0.23/0.21	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.23/0.21	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.23/0.21	c Expensive reason simplification
0.23/0.21	c MiniSAT restarts strategy
0.23/0.21	c Memory based learned constraints deletion strategy
0.23/0.21	c timeout=2147483s
0.23/0.21	c DB Simplification allowed=false
0.23/0.21	c --- End Solver configuration ---
0.23/0.21	c solving HOME/instance-1856209-1244905299.opb
0.23/0.21	c reading problem ... 
2.03/1.38	c ... done. Wall clock time 1.165s.
2.03/1.38	c #vars     7470
2.03/1.38	c #constraints  3513
2.03/1.38	c constraints type 
2.03/1.38	c org.sat4j.pb.constraints.pb.MaxWatchPb => 301
2.13/1.48	c starts		: 0
2.13/1.48	c conflicts		: 0
2.13/1.48	c decisions		: 0
2.13/1.48	c propagations		: 3509
2.13/1.48	c inspects		: 5564
2.13/1.48	c learnt literals	: 0
2.13/1.48	c learnt binary clauses	: 0
2.13/1.48	c learnt ternary clauses	: 0
2.13/1.48	c learnt clauses	: 0
2.13/1.48	c ignored clauses	: 0
2.13/1.48	c root simplifications	: 0
2.13/1.48	c removed literals (reason simplification)	: 0
2.13/1.48	c reason swapping (by a shorter reason)	: 0
2.13/1.48	c Calls to reduceDB	: 0
2.13/1.48	c speed (assignments/second)	: 34742.57425742574
2.13/1.48	c non guided choices	0
2.13/1.48	c learnt constraints type 
2.13/1.48	c constraints type 
2.13/1.48	c org.sat4j.pb.constraints.pb.MaxWatchPb => 301
2.13/1.48	s UNSATISFIABLE
2.13/1.48	c Total wall clock time (in seconds): 1.269

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-1856209-1244905299/watcher-1856209-1244905299 -o /tmp/evaluation-result-1856209-1244905299/solver-1856209-1244905299 -C 1800 -W 2000 -M 1800 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-1856209-1244905299.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: 0.93 0.98 0.99 3/64 3821
/proc/meminfo: memFree=1464336/2055920 swapFree=4162000/4192956
[pid=3821] ppid=3819 vsize=152 CPUtime=0
/proc/3821/stat : 3821 (java6) R 3819 3821 3784 0 -1 0 41 0 0 0 0 0 0 0 20 0 1 0 158123808 155648 26 1992294400 134512640 134550932 4294956176 18446744073709551615 7205668 0 0 4096 0 0 0 0 17 1 0 0
/proc/3821/statm: 38 26 19 9 0 4 0

[startup+0.0270509 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 3821
/proc/meminfo: memFree=1464336/2055920 swapFree=4162000/4192956
[pid=3821] ppid=3819 vsize=1466792 CPUtime=0.01
/proc/3821/stat : 3821 (java) S 3819 3821 3784 0 -1 0 2380 0 1 0 0 1 0 0 18 0 4 0 158123808 1501995008 2129 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/3821/statm: 366698 2131 473 9 0 364450 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1466792

[startup+0.101059 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 3821
/proc/meminfo: memFree=1464336/2055920 swapFree=4162000/4192956
[pid=3821] ppid=3819 vsize=1472584 CPUtime=0.09
/proc/3821/stat : 3821 (java) S 3819 3821 3784 0 -1 0 3637 0 1 0 7 2 0 0 18 0 12 0 158123808 1507926016 3380 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/3821/statm: 368146 3381 1068 9 0 365494 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1472584

[startup+0.30111 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 3821
/proc/meminfo: memFree=1464336/2055920 swapFree=4162000/4192956
[pid=3821] ppid=3819 vsize=1475184 CPUtime=0.35
/proc/3821/stat : 3821 (java) S 3819 3821 3784 0 -1 0 5105 0 1 0 32 3 0 0 18 0 12 0 158123808 1510588416 4843 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/3821/statm: 368796 4843 1361 9 0 366139 0
Current children cumulated CPU time (s) 0.35
Current children cumulated vsize (KiB) 1475184

[startup+0.701197 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 3821
/proc/meminfo: memFree=1464336/2055920 swapFree=4162000/4192956
[pid=3821] ppid=3819 vsize=1486820 CPUtime=1.1
/proc/3821/stat : 3821 (java) S 3819 3821 3784 0 -1 0 10080 0 1 0 105 5 0 0 18 0 12 0 158123808 1522503680 8408 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/3821/statm: 371705 8408 1398 9 0 369048 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 1486820

[startup+1.50236 s]
/proc/loadavg: 0.93 0.98 0.99 3/76 3833
/proc/meminfo: memFree=1428336/2055920 swapFree=4162000/4192956
[pid=3821] ppid=3819 vsize=0 CPUtime=2.26
/proc/3821/stat : 3821 (java) Z 3819 3821 3784 0 -1 1036 21940 0 1 0 216 10 0 0 16 0 2 0 158123808 0 0 1992294400 0 0 0 0 0 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/3821/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 2.26
Current children cumulated vsize (KiB) 0

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

Child status: 20
Real time (s): 1.51274
CPU time (s): 2.28165
CPU user time (s): 2.16267
CPU system time (s): 0.118981
CPU usage (%): 150.829
Max. virtual memory (cumulated for all children) (KiB): 1489984

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.16267
system time used= 0.118981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21940
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= 348
involuntary context switches= 300

runsolver used 0.005999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node71 at 2009-06-13 17:01:40
IDJOB=1856209
IDBENCH=2401
IDSOLVER=682
FILE ID=node71/1856209-1244905299
PBS_JOBID= 9354557
Free space on /tmp= 66492 MiB

SOLVER NAME= SAT4J Pseudo Resolution 2.1.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-brandy.opb
COMMAND LINE= java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1856209-1244905299/watcher-1856209-1244905299 -o /tmp/evaluation-result-1856209-1244905299/solver-1856209-1244905299 -C 1800 -W 2000 -M 1800  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-1856209-1244905299.opb

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

MD5SUM BENCH= 913c17bb7faa6362a8688d6500a7e54d
RANDOM SEED=2055250665

node71.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		: 3000.277
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		: 3000.277
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:       1464752 kB
Buffers:         73652 kB
Cached:         410952 kB
SwapCached:      26280 kB
Active:          83408 kB
Inactive:       430208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1464752 kB
SwapTotal:     4192956 kB
SwapFree:      4162000 kB
Dirty:            1236 kB
Writeback:           0 kB
Mapped:          13352 kB
Slab:            63516 kB
Committed_AS:    85324 kB
PageTables:       1440 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= 66492 MiB
End job on node71 at 2009-06-13 17:01:41