Trace number 1856502

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 0.573911 0.478107

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/
submitted-PB06/roussel/normalized-pigeon-cardinality-21-20.opb
MD5SUM2f4fbbd7ac7eea50904b3e0a14134afd
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 benchmark0.023996
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables420
Total number of constraints41
Number of constraints which are clauses21
Number of constraints which are cardinality constraints (but not clauses)20
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint20
Maximum length of a constraint21
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 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 

0.08/0.14	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
0.22/0.22	c Pseudo Boolean Optimization
0.22/0.22	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.22/0.22	c --- Begin Solver configuration ---
0.22/0.22	c Stops conflict analysis at the first Unique Implication Point
0.22/0.22	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@ecd7e
0.22/0.22	c Learn all clauses as in MiniSAT
0.22/0.22	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.22/0.22	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.22/0.22	c No reason simplification
0.22/0.22	c MiniSAT restarts strategy
0.22/0.22	c Memory based learned constraints deletion strategy
0.22/0.22	c timeout=2147483s
0.22/0.22	c DB Simplification allowed=false
0.22/0.22	c --- End Solver configuration ---
0.22/0.22	c solving HOME/instance-1856502-1244913550.opb
0.22/0.22	c reading problem ... 
0.22/0.30	c ... done. Wall clock time 0.075s.
0.22/0.30	c #vars     420
0.22/0.30	c #constraints  41
0.33/0.30	c constraints type 
0.33/0.30	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 21
0.33/0.30	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 20
0.49/0.43	c starts		: 1
0.49/0.43	c conflicts		: 20
0.49/0.43	c decisions		: 191
0.49/0.43	c propagations		: 438
0.49/0.43	c inspects		: 438
0.49/0.43	c learnt literals	: 0
0.49/0.43	c learnt binary clauses	: 0
0.49/0.43	c learnt ternary clauses	: 0
0.49/0.43	c learnt clauses	: 19
0.49/0.43	c ignored clauses	: 0
0.49/0.43	c root simplifications	: 0
0.49/0.43	c removed literals (reason simplification)	: 0
0.49/0.43	c reason swapping (by a shorter reason)	: 0
0.49/0.43	c Calls to reduceDB	: 0
0.49/0.43	c speed (assignments/second)	: 3650.0
0.49/0.43	c non guided choices	191
0.49/0.43	c learnt constraints type 
0.49/0.43	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 19
0.49/0.43	c constraints type 
0.49/0.43	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 21
0.49/0.43	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 20
0.49/0.43	s UNSATISFIABLE
0.49/0.43	c Total wall clock time (in seconds): 0.213

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-1856502-1244913550/watcher-1856502-1244913550 -o /tmp/evaluation-result-1856502-1244913550/solver-1856502-1244913550 -C 1800 -W 2000 -M 1800 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1856502-1244913550.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: 1.00 1.01 1.00 3/64 14775
/proc/meminfo: memFree=1689608/2055920 swapFree=4192812/4192956
[pid=14775] ppid=14773 vsize=18576 CPUtime=0
/proc/14775/stat : 14775 (runsolver) R 14773 14775 14557 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 158955655 19021824 284 1992294400 4194304 4302564 548682068416 18446744073709551615 214919867687 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/14775/statm: 4644 284 249 26 0 2626 0

[startup+0.065956 s]
/proc/loadavg: 1.00 1.01 1.00 3/64 14775
/proc/meminfo: memFree=1689608/2055920 swapFree=4192812/4192956
[pid=14775] ppid=14773 vsize=1470220 CPUtime=0.04
/proc/14775/stat : 14775 (java) S 14773 14775 14557 0 -1 0 3307 0 1 0 3 1 0 0 20 0 7 0 158955655 1505505280 3052 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/14775/statm: 367555 3052 1029 9 0 364906 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1470220

[startup+0.101964 s]
/proc/loadavg: 1.00 1.01 1.00 3/64 14775
/proc/meminfo: memFree=1689608/2055920 swapFree=4192812/4192956
[pid=14775] ppid=14773 vsize=1472584 CPUtime=0.08
/proc/14775/stat : 14775 (java) S 14773 14775 14557 0 -1 0 3598 0 1 0 6 2 0 0 20 0 12 0 158955655 1507926016 3341 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/14775/statm: 368146 3341 1066 9 0 365494 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1472584

[startup+0.302003 s]
/proc/loadavg: 1.00 1.01 1.00 3/64 14775
/proc/meminfo: memFree=1689608/2055920 swapFree=4192812/4192956
[pid=14775] ppid=14773 vsize=1475004 CPUtime=0.33
/proc/14775/stat : 14775 (java) S 14773 14775 14557 0 -1 0 5035 0 1 0 30 3 0 0 20 0 12 0 158955655 1510404096 4773 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/14775/statm: 368751 4773 1353 9 0 366094 0
Current children cumulated CPU time (s) 0.33
Current children cumulated vsize (KiB) 1475004

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

[startup+0.402027 s]
/proc/loadavg: 1.00 1.01 1.00 3/64 14775
/proc/meminfo: memFree=1689608/2055920 swapFree=4192812/4192956
[pid=14775] ppid=14773 vsize=1476044 CPUtime=0.49
/proc/14775/stat : 14775 (java) S 14773 14775 14557 0 -1 0 5402 0 1 0 46 3 0 0 20 0 13 0 158955655 1511469056 5128 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/14775/statm: 369011 5128 1370 9 0 366354 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 1476044

Child status: 20
Real time (s): 0.478107
CPU time (s): 0.573911
CPU user time (s): 0.533918
CPU system time (s): 0.039993
CPU usage (%): 120.038
Max. virtual memory (cumulated for all children) (KiB): 1476044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.533918
system time used= 0.039993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5547
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= 148
involuntary context switches= 79

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node10 at 2009-06-13 19:19:10
IDJOB=1856502
IDBENCH=2598
IDSOLVER=681
FILE ID=node10/1856502-1244913550
PBS_JOBID= 9354601
Free space on /tmp= 66272 MiB

SOLVER NAME= SAT4J Pseudo CP 2.1.1
BENCH NAME= PB06/final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/roussel/normalized-pigeon-cardinality-21-20.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-1856502-1244913550/watcher-1856502-1244913550 -o /tmp/evaluation-result-1856502-1244913550/solver-1856502-1244913550 -C 1800 -W 2000 -M 1800  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1856502-1244913550.opb

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

MD5SUM BENCH= 2f4fbbd7ac7eea50904b3e0a14134afd
RANDOM SEED=1125529513

node10.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		: 3000.263
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		: 3000.263
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:       1690088 kB
Buffers:         53320 kB
Cached:         238192 kB
SwapCached:        140 kB
Active:          34168 kB
Inactive:       270868 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1690088 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             284 kB
Writeback:           0 kB
Mapped:          23232 kB
Slab:            46788 kB
Committed_AS:   135276 kB
PageTables:       1384 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= 66272 MiB
End job on node10 at 2009-06-13 19:19:10