Trace number 43837

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, and are wall clock time (not CPU 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
SAT4JPSEUDO 2006.2UNSAT 13.058 11.8557

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-reduced-mps-v2-20-10-neos12.opb
MD5SUMa0b6152dd8614459e798b375ad9ceb75
Bench CategoryOPT-SMALLINT (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 benchmark6.31404
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables22960
Total number of constraints8611
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 constraints8611
Minimum length of a constraint11
Maximum length of a constraint840
Number of terms in the objective function 13440
Biggest coefficient in the objective function 586
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 535808
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262144
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 535808
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.15	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.15	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.15	c no version file found!!!
0.15	c sun.arch.data.model	32
0.15	c java.version	1.5.0_06
0.15	c os.name	Linux
0.15	c os.version	2.6.9-22.EL.rootsmp
0.15	c os.arch	i386
0.15	c Free memory 1548419056
0.15	c Max memory 1551040512
0.15	c Total memory 1551040512
0.15	c Number of processors 2
0.20	c Cutting planes based inference
0.20	c --- Begin Solver configuration ---
0.20	c org.sat4j.minisat.uip.FirstUIP@1037c71
0.20	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@1df073d
0.20	c org.sat4j.minisat.learning.MiniSATLearning@1546e25
0.20	c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=10000.0 initConflictBound=100 
0.20	c VSIDS like heuristics from MiniSAT using a heap
0.20	c No reason simplification
0.20	c --- End Solver configuration ---
0.20	c solving ROOT/tmp/node30/43837-1149255509/instance-43837-1149255509.opb
0.20	c reading problem ... 
7.98	c ... done. Time 7.779 ms.
7.98	c #vars     22960
7.98	c #constraints  9186
11.80	c starts		: 1
11.80	c conflicts		: 20
11.80	c decisions		: 19932
11.80	c propagations		: 49672
11.80	c inspects		: 162982
11.80	c learnt literals	: 0
11.80	c learnt binary clauses	: 0
11.80	c learnt ternary clauses	: 0
11.80	c learnt clauses	: 19
11.80	c root simplifications	: 0
11.80	c removed literals (reason simplification)	: 0
11.80	c reason swapping (by a shorter reason)	: 0
11.80	c Calls to reduceDB	: 0
11.80	c speed (decisions/second)	: 5277.204130262113
11.80	c non guided choices	16371
11.80	s UNSATISFIABLE
11.80	c Total wall clock time (ms): 11.596

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node30/watcher-43837-1149255509 -o ROOT/results/node30/solver-43837-1149255509 -C 1800 -M 1800 -S 64 java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoPlus.jar ROOT/tmp/node30/43837-1149255509/instance-43837-1149255509.opb 602954920 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.95 0.90 2/64 21296
/proc/meminfo: memFree=1784824/2055920 swapFree=4180904/4192956
[pid=21296] ppid=21294 vsize=1592 CPUtime=0
/proc/21296/stat : 21296 (java) R 21294 21296 21250 0 -1 0 130 0 0 0 0 0 0 0 19 0 1 0 191214503 1630208 102 18446744073709551615 134512640 134570276 4294956624 18446744073709551615 134539360 0 0 4096 0 0 0 0 17 1 0 0
/proc/21296/statm: 398 103 82 14 0 43 0

[startup+10.0021 s]
/proc/loadavg: 1.00 0.97 0.91 2/76 21308
/proc/meminfo: memFree=1610976/2055920 swapFree=4180904/4192956
[pid=21296] ppid=21294 vsize=1711516 CPUtime=11.17
/proc/21296/stat : 21296 (java) R 21294 21296 21250 0 -1 0 48986 0 1 0 1095 22 0 0 25 0 13 0 191214503 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4071613733 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/21296/statm: 427879 45202 1904 14 0 414626 0
[pid=21296/tid=21297] ppid=21294 vsize=1711516 CPUtime=0.24
/proc/21296/task/21297/stat : 21297 (java) S 21294 21296 21250 0 -1 64 5365 0 0 0 22 2 0 0 16 0 13 0 191214506 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=21296/tid=21298] ppid=21294 vsize=1711516 CPUtime=0.24
/proc/21296/task/21298/stat : 21298 (java) S 21294 21296 21250 0 -1 64 4553 0 0 0 23 1 0 0 16 0 13 0 191214506 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=21296/tid=21299] ppid=21294 vsize=1711516 CPUtime=0
/proc/21296/task/21299/stat : 21299 (java) S 21294 21296 21250 0 -1 64 31 0 0 0 0 0 0 0 17 0 13 0 191214509 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 0 0 0
[pid=21296/tid=21300] ppid=21294 vsize=1711516 CPUtime=0
/proc/21296/task/21300/stat : 21300 (java) S 21294 21296 21250 0 -1 64 9 0 0 0 0 0 0 0 16 0 13 0 191214510 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=21296/tid=21301] ppid=21294 vsize=1711516 CPUtime=0
/proc/21296/task/21301/stat : 21301 (java) S 21294 21296 21250 0 -1 64 5 0 0 0 0 0 0 0 16 0 13 0 191214510 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=21296/tid=21302] ppid=21294 vsize=1711516 CPUtime=0
/proc/21296/task/21302/stat : 21302 (java) S 21294 21296 21250 0 -1 64 1 0 0 0 0 0 0 0 23 0 13 0 191214513 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=21296/tid=21303] ppid=21294 vsize=1711516 CPUtime=0
/proc/21296/task/21303/stat : 21303 (java) S 21294 21296 21250 0 -1 64 3 0 0 0 0 0 0 0 16 0 13 0 191214513 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=21296/tid=21304] ppid=21294 vsize=1711516 CPUtime=0.72
/proc/21296/task/21304/stat : 21304 (java) S 21294 21296 21250 0 -1 64 1158 0 0 0 72 0 0 0 16 0 13 0 191214513 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=21296/tid=21305] ppid=21294 vsize=1711516 CPUtime=0.57
/proc/21296/task/21305/stat : 21305 (java) S 21294 21296 21250 0 -1 64 821 0 0 0 57 0 0 0 16 0 13 0 191214513 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=21296/tid=21306] ppid=21294 vsize=1711516 CPUtime=0
/proc/21296/task/21306/stat : 21306 (java) S 21294 21296 21250 0 -1 64 0 0 0 0 0 0 0 0 24 0 13 0 191214513 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=21296/tid=21307] ppid=21294 vsize=1711516 CPUtime=0
/proc/21296/task/21307/stat : 21307 (java) S 21294 21296 21250 0 -1 64 1 0 0 0 0 0 0 0 15 0 13 0 191214513 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=21296/tid=21308] ppid=21294 vsize=1711516 CPUtime=0
/proc/21296/task/21308/stat : 21308 (java) S 21294 21296 21250 0 -1 64 4 0 0 0 0 0 0 0 18 0 13 0 191215306 1752592384 45202 18446744073709551615 134512640 134570276 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 11.17
Current children cumulated vsize (Kb) 1711516

Child status: 20
Real time (s): 11.8557
CPU time (s): 13.058
CPU user time (s): 12.8061
CPU system time (s): 0.251961
CPU usage (%): 110.142
Max. virtual memory (cumulated for all children) (Kb): 1711516

Launcher Data (download as text)

Begin job on node30 on Fri Jun  2 13:38:29 UTC 2006


FILE ID= 43837-1149255509

PBS_JOBID= 298362

BENCH NAME= ROOT/tmp/node30/43837-1149255509/instance-43837-1149255509.opb
COMMAND LINE= java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoPlus.jar ROOT/tmp/node30/43837-1149255509/instance-43837-1149255509.opb 602954920
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-43837-1149255509 -o ROOT/results/node30/solver-43837-1149255509 -C 1800 -M 1800 -S 64  java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoPlus.jar ROOT/tmp/node30/43837-1149255509/instance-43837-1149255509.opb 602954920

MD5SUM SOLVER= e9637a7554f3ecdf74c1815f89d00213
MD5SUM BENCH=  a0b6152dd8614459e798b375ad9ceb75

RANDOM SEED= 602954920


/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		: 3000.216
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		: 3000.216
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:       1785032 kB
Buffers:          7288 kB
Cached:         193564 kB
SwapCached:       3488 kB
Active:          36496 kB
Inactive:       172868 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1785032 kB
SwapTotal:     4192956 kB
SwapFree:      4180904 kB
Dirty:             216 kB
Writeback:           0 kB
Mapped:          14724 kB
Slab:            47556 kB
Committed_AS:   210188 kB
PageTables:       1396 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node30 on Fri Jun  2 13:38:41 UTC 2006