Trace number 39489

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 NameAnswerCPU timeWall clock time
bsolo 2006/05UNSAT 53.0779 53.1345

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110968094.opb
MD5SUM940d71bbc0c42e33ba6204f0b827ce80
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.101984
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
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 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1242
Number of bits of the biggest sum of numbers11
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)

0.00	c Time Limit set via PBTIMEOUT to 1800
0.04	c INFO: OSL Context initialized.
0.04	c Initial problem consists of 169 variables and 101 constraints.
0.04	c Using non-optimization problem switches.
0.04	c No problem reductions applied in OPT. instance.
0.04	c	preprocess terminated. Elapsed time: 0.006
0.04	c After prepocess the problem consists of 169 variables and 99 constraints.
0.06	c Restart #1 #Var: 169 LB: 0 @ 0.02
0.09	c Restart #2 #Var: 169 LB: 0 @ 0.052
0.14	c Restart #3 #Var: 169 LB: 0 @ 0.101
0.19	c Restart #4 #Var: 169 LB: 0 @ 0.149
0.25	c Restart #5 #Var: 169 LB: 0 @ 0.212
0.32	c Restart #6 #Var: 169 LB: 0 @ 0.287
0.44	c Restart #7 #Var: 169 LB: 0 @ 0.404
0.58	c Restart #8 #Var: 169 LB: 0 @ 0.544
0.75	c Restart #9 #Var: 169 LB: 0 @ 0.713
0.99	c Restart #10 #Var: 169 LB: 0 @ 0.952
1.21	c Restart #11 #Var: 169 LB: 0 @ 1.169
1.45	c Restart #12 #Var: 169 LB: 0 @ 1.412
1.77	c Restart #13 #Var: 169 LB: 0 @ 1.737
2.13	c Restart #14 #Var: 169 LB: 0 @ 2.093
2.48	c Restart #15 #Var: 169 LB: 0 @ 2.44
2.89	c Restart #16 #Var: 169 LB: 0 @ 2.852
3.41	c Restart #17 #Var: 169 LB: 0 @ 3.37
3.82	c Restart #18 #Var: 169 LB: 0 @ 3.783
4.29	c Restart #19 #Var: 169 LB: 0 @ 4.257
4.89	c Restart #20 #Var: 169 LB: 0 @ 4.851
5.71	c Restart #21 #Var: 169 LB: 0 @ 5.67
6.72	c Restart #22 #Var: 169 LB: 0 @ 6.681
7.80	c Restart #23 #Var: 169 LB: 0 @ 7.76
8.70	c Restart #24 #Var: 169 LB: 0 @ 8.657
10.04	c Restart #25 #Var: 169 LB: 0 @ 9.996
10.84	c Restart #26 #Var: 169 LB: 0 @ 10.792
12.25	c Restart #27 #Var: 167 LB: 0 @ 12.207
14.13	c Restart #28 #Var: 167 LB: 0 @ 14.084
16.00	c Restart #29 #Var: 164 LB: 0 @ 15.955
17.59	c Restart #30 #Var: 164 LB: 0 @ 17.541
19.57	c Restart #31 #Var: 164 LB: 0 @ 19.528
21.05	c Restart #32 #Var: 164 LB: 0 @ 21.004
22.58	c Restart #33 #Var: 164 LB: 0 @ 22.53
25.19	c Restart #34 #Var: 164 LB: 0 @ 25.14
27.69	c Restart #35 #Var: 161 LB: 0 @ 27.64
29.83	c Restart #36 #Var: 159 LB: 0 @ 29.784
31.65	c Restart #37 #Var: 159 LB: 0 @ 31.604
34.44	c Restart #38 #Var: 159 LB: 0 @ 34.393
37.24	c Restart #39 #Var: 159 LB: 0 @ 37.19
41.20	c Restart #40 #Var: 156 LB: 0 @ 41.153
47.18	c Restart #41 #Var: 152 LB: 0 @ 47.132
52.34	c Restart #42 #Var: 108 LB: 0 @ 52.291
53.11	s UNSATISFIABLE
53.11	c Exit Code: 20
53.11	c Total time: 53.056 s

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/node18/watcher-39489-1149211346 -o ROOT/results/node18/solver-39489-1149211346 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node18/39489-1149211346/instance-39489-1149211346.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.86 0.90 0.89 2/64 25074
/proc/meminfo: memFree=1348016/2055920 swapFree=4180888/4192956
[pid=25074] ppid=25072 vsize=4664 CPUtime=0
/proc/25074/stat : 25074 (bsolo) R 25072 25074 25029 0 -1 0 155 0 0 0 0 0 0 0 18 0 1 0 186797594 4775936 135 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 7830804 0 0 4096 0 0 0 0 17 1 0 0
/proc/25074/statm: 1166 135 105 55 0 46 0

[startup+10.0022 s]
/proc/loadavg: 0.88 0.90 0.89 2/64 25074
/proc/meminfo: memFree=1308088/2055920 swapFree=4180888/4192956
[pid=25074] ppid=25072 vsize=44316 CPUtime=9.95
/proc/25074/stat : 25074 (bsolo) R 25072 25074 25029 0 -1 0 10337 0 0 0 987 8 0 0 25 0 1 0 186797594 45379584 10252 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134551614 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25074/statm: 11079 10252 296 55 0 9971 0
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 44316

[startup+20.0092 s]
/proc/loadavg: 0.90 0.90 0.89 2/64 25074
/proc/meminfo: memFree=1285816/2055920 swapFree=4180888/4192956
[pid=25074] ppid=25072 vsize=66664 CPUtime=19.96
/proc/25074/stat : 25074 (bsolo) R 25072 25074 25029 0 -1 0 15892 0 0 0 1982 14 0 0 25 0 1 0 186797594 68263936 15807 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534127 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25074/statm: 16666 15807 296 55 0 15558 0
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 66664

[startup+30.0151 s]
/proc/loadavg: 0.91 0.91 0.89 2/64 25074
/proc/meminfo: memFree=1261432/2055920 swapFree=4180888/4192956
[pid=25074] ppid=25072 vsize=90968 CPUtime=29.96
/proc/25074/stat : 25074 (bsolo) R 25072 25074 25029 0 -1 0 21983 0 0 0 2977 19 0 0 25 0 1 0 186797594 93151232 21898 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25074/statm: 22742 21898 296 55 0 21634 0
Current children cumulated CPU time (s) 29.96
Current children cumulated vsize (Kb) 90968

[startup+40.0211 s]
/proc/loadavg: 0.92 0.91 0.89 2/64 25074
/proc/meminfo: memFree=1242168/2055920 swapFree=4180888/4192956
[pid=25074] ppid=25072 vsize=110280 CPUtime=39.96
/proc/25074/stat : 25074 (bsolo) R 25072 25074 25029 0 -1 0 26785 0 0 0 3973 23 0 0 25 0 1 0 186797594 112926720 26700 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 8296059 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25074/statm: 27570 26700 296 55 0 26462 0
Current children cumulated CPU time (s) 39.96
Current children cumulated vsize (Kb) 110280

[startup+50.0271 s]
/proc/loadavg: 0.94 0.91 0.89 2/64 25074
/proc/meminfo: memFree=1231928/2055920 swapFree=4180888/4192956
[pid=25074] ppid=25072 vsize=120572 CPUtime=49.96
/proc/25074/stat : 25074 (bsolo) R 25072 25074 25029 0 -1 0 29339 0 0 0 4970 26 0 0 25 0 1 0 186797594 123465728 29252 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134533910 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25074/statm: 30143 29252 296 55 0 29035 0
Current children cumulated CPU time (s) 49.96
Current children cumulated vsize (Kb) 120572

Child status: 20
Real time (s): 53.1345
CPU time (s): 53.0779
CPU user time (s): 52.773
CPU system time (s): 0.304953
CPU usage (%): 99.8936
Max. virtual memory (cumulated for all children) (Kb): 120572

Launcher Data (download as text)

Begin job on node18 on Fri Jun  2 01:22:26 UTC 2006


FILE ID= 39489-1149211346

PBS_JOBID= 294110

BENCH NAME= ROOT/tmp/node18/39489-1149211346/instance-39489-1149211346.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node18/39489-1149211346/instance-39489-1149211346.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-39489-1149211346 -o ROOT/results/node18/solver-39489-1149211346 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node18/39489-1149211346/instance-39489-1149211346.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  940d71bbc0c42e33ba6204f0b827ce80

RANDOM SEED= 249405016


/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	: 5931.00
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:       1348224 kB
Buffers:         39700 kB
Cached:         591796 kB
SwapCached:       3828 kB
Active:         250912 kB
Inactive:       389356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1348224 kB
SwapTotal:     4192956 kB
SwapFree:      4180888 kB
Dirty:             256 kB
Writeback:           0 kB
Mapped:          14668 kB
Slab:            53480 kB
Committed_AS:   211996 kB
PageTables:       1416 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node18 on Fri Jun  2 01:23:20 UTC 2006