Trace number 1732127

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
VARSAT-random 2009-03-22UNSAT 29.2436 29.251

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-73-100.cnf
MD5SUM21a63ce6f14424dbad7bd9e8fb6cd037
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.9497
Satisfiable
(Un)Satisfiability was proved
Number of variables73
Number of clauses156
Sum of the clauses size468
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3156
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  73                                                   |
0.00/0.00	c |  Number of clauses:    156                                                  |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.00	c |  Timeout:              43200 s
0.00/0.00	c |  Random Seed:          183829854.000000
0.00/0.00	c |  Heuristic:            EMSP-G, threshold 0.750                              |
0.00/0.00	c |  Branching Rule:       default (solution-guided)                            |
0.00/0.00	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.00/0.00	c |                                                                             |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      73      156      468 |       52        0    nan |  0.000 % |
0.00/0.00	c |       101 |      73      156      468 |       57       66     12 |  0.019 % |
0.00/0.00	c |       252 |      73      156      468 |       62       61     10 |  0.019 % |
0.00/0.00	c |       477 |      73      156      468 |       69      103     11 |  0.019 % |
0.00/0.01	c |       814 |      73      156      468 |       76       79     10 |  0.019 % |
0.00/0.01	c |      1321 |      73      156      468 |       83       65      9 |  0.019 % |
0.00/0.02	c |      2080 |      73      156      468 |       92       92     10 |  0.019 % |
0.02/0.03	c |      3219 |      73      156      468 |      101       67      8 |  0.019 % |
0.02/0.05	c |      4928 |      73      156      468 |      111       74      8 |  0.019 % |
0.02/0.08	c |      7490 |      73      156      468 |      122      137     10 |  0.019 % |
0.10/0.12	c |     11335 |      73      156      468 |      134      117      8 |  0.019 % |
0.10/0.17	c |     17101 |      73      156      468 |      148       98      8 |  0.019 % |
0.20/0.27	c |     25751 |      73      156      468 |      163      144     10 |  0.019 % |
0.40/0.42	c |     38725 |      73      156      468 |      179      179      9 |  0.019 % |
0.60/0.64	c |     58187 |      73      156      468 |      197      161     10 |  0.019 % |
0.90/0.98	c |     87380 |      73      156      468 |      217      158      9 |  0.019 % |
1.39/1.50	c |    131170 |      73      156      468 |      238      229     10 |  0.019 % |
2.20/2.29	c |    196856 |      73      156      468 |      262      164      9 |  0.019 % |
3.49/3.52	c |    295382 |      73      156      468 |      289      215     10 |  0.019 % |
5.40/5.43	c |    443174 |      73      156      468 |      318      284     10 |  0.019 % |
8.19/8.23	c |    664857 |      73      156      468 |      349      230      9 |  0.019 % |
12.39/12.42	c |    997382 |      73      156      468 |      384      282      8 |  0.021 % |
18.69/18.76	c |   1496170 |      73      156      468 |      423      293      9 |  0.057 % |
28.69/28.71	c |   2244352 |      69      144      432 |      465      280      8 |  5.517 % |
29.19/29.25	c ===============================================================================
29.19/29.25	c surveys--CPU time (sec)   : 0.0070         (0.02 % of total)
29.19/29.25	c surveys--attempted        : 24             (3429 /sec)
29.19/29.25	c surveys--converged        : 24             (100.00 % successful)
29.19/29.25	c restarts              : 24
29.19/29.25	c conflicts             : 2284960        (78160 /sec)
29.19/29.25	c decisions             : 2768208        (1.59 % random) (94690 /sec)
29.19/29.25	c propagations          : 50602814       (1730925 /sec)
29.19/29.25	c conflict literals     : 28031083       (14.40 % deleted)
29.19/29.25	c Memory used           : 2.36 MB
29.19/29.25	c Total CPU time (sec)      : 29.2416     
29.19/29.25	c 
29.19/29.25	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1732127-1240777891/watcher-1732127-1240777891 -o /tmp/evaluation-result-1732127-1240777891/solver-1732127-1240777891 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-random_static -seed=183829854 HOME/instance-1732127-1240777891.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.60 1.21 1.07 3/64 26860
/proc/meminfo: memFree=1660120/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2144 CPUtime=0
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 154 0 0 0 0 0 0 0 18 0 1 0 105822265 2195456 139 1992294400 4194304 5102416 548682068784 18446744073709551615 4490906 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 536 139 111 221 0 312 0

[startup+0.0279171 s]
/proc/loadavg: 1.60 1.21 1.07 3/64 26860
/proc/meminfo: memFree=1660120/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2144 CPUtime=0.02
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 155 0 0 0 2 0 0 0 18 0 1 0 105822265 2195456 140 1992294400 4194304 5102416 548682068784 18446744073709551615 4230678 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 536 140 111 221 0 312 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2144

[startup+0.101923 s]
/proc/loadavg: 1.60 1.21 1.07 3/64 26860
/proc/meminfo: memFree=1660120/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2144 CPUtime=0.1
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 158 0 0 0 10 0 0 0 18 0 1 0 105822265 2195456 143 1992294400 4194304 5102416 548682068784 18446744073709551615 4249520 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 536 143 111 221 0 312 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2144

[startup+0.30194 s]
/proc/loadavg: 1.60 1.21 1.07 3/64 26860
/proc/meminfo: memFree=1660120/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2144 CPUtime=0.3
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 163 0 0 0 30 0 0 0 19 0 1 0 105822265 2195456 148 1992294400 4194304 5102416 548682068784 18446744073709551615 4249582 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 536 148 111 221 0 312 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2144

[startup+0.701974 s]
/proc/loadavg: 1.60 1.21 1.07 3/64 26860
/proc/meminfo: memFree=1660120/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2144 CPUtime=0.7
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 169 0 0 0 70 0 0 0 22 0 1 0 105822265 2195456 154 1992294400 4194304 5102416 548682068784 18446744073709551615 4249582 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 536 154 111 221 0 312 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2144

[startup+1.50104 s]
/proc/loadavg: 1.60 1.21 1.07 2/65 26861
/proc/meminfo: memFree=1659920/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2276 CPUtime=1.49
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 172 0 0 0 149 0 0 0 25 0 1 0 105822265 2330624 157 1992294400 4194304 5102416 548682068784 18446744073709551615 4524903 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 569 157 111 221 0 345 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2276

[startup+3.10118 s]
/proc/loadavg: 1.60 1.21 1.07 2/65 26861
/proc/meminfo: memFree=1659792/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2276 CPUtime=3.09
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 180 0 0 0 309 0 0 0 25 0 1 0 105822265 2330624 165 1992294400 4194304 5102416 548682068784 18446744073709551615 4254277 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 569 165 111 221 0 345 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2276

[startup+6.30146 s]
/proc/loadavg: 1.55 1.21 1.07 2/65 26861
/proc/meminfo: memFree=1659664/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2276 CPUtime=6.29
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 187 0 0 0 629 0 0 0 25 0 1 0 105822265 2330624 172 1992294400 4194304 5102416 548682068784 18446744073709551615 4254982 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 569 172 111 221 0 345 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2276

[startup+12.702 s]
/proc/loadavg: 1.51 1.20 1.07 2/65 26861
/proc/meminfo: memFree=1659544/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2276 CPUtime=12.69
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 193 0 0 0 1269 0 0 0 25 0 1 0 105822265 2330624 178 1992294400 4194304 5102416 548682068784 18446744073709551615 4249529 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 569 178 111 221 0 345 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2276

[startup+25.5011 s]
/proc/loadavg: 1.40 1.19 1.07 2/65 26861
/proc/meminfo: memFree=1659480/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2408 CPUtime=25.49
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 207 0 0 0 2549 0 0 0 25 0 1 0 105822265 2465792 192 1992294400 4194304 5102416 548682068784 18446744073709551615 4250067 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 602 192 111 221 0 378 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 2408

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

[startup+27.1012 s]
/proc/loadavg: 1.40 1.19 1.07 2/65 26861
/proc/meminfo: memFree=1659480/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2408 CPUtime=27.09
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 207 0 0 0 2709 0 0 0 25 0 1 0 105822265 2465792 192 1992294400 4194304 5102416 548682068784 18446744073709551615 4244069 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 602 192 111 221 0 378 0
Current children cumulated CPU time (s) 27.09
Current children cumulated vsize (KiB) 2408

[startup+27.9013 s]
/proc/loadavg: 1.40 1.19 1.07 2/65 26861
/proc/meminfo: memFree=1659480/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2408 CPUtime=27.89
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 207 0 0 0 2789 0 0 0 25 0 1 0 105822265 2465792 192 1992294400 4194304 5102416 548682068784 18446744073709551615 4249582 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 602 192 111 221 0 378 0
Current children cumulated CPU time (s) 27.89
Current children cumulated vsize (KiB) 2408

[startup+28.7014 s]
/proc/loadavg: 1.40 1.19 1.07 2/65 26861
/proc/meminfo: memFree=1659480/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2408 CPUtime=28.69
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 207 0 0 0 2869 0 0 0 25 0 1 0 105822265 2465792 192 1992294400 4194304 5102416 548682068784 18446744073709551615 4254884 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 602 192 111 221 0 378 0
Current children cumulated CPU time (s) 28.69
Current children cumulated vsize (KiB) 2408

[startup+29.1014 s]
/proc/loadavg: 1.40 1.19 1.07 2/65 26861
/proc/meminfo: memFree=1659480/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2408 CPUtime=29.09
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 209 0 0 0 2909 0 0 0 25 0 1 0 105822265 2465792 194 1992294400 4194304 5102416 548682068784 18446744073709551615 4249520 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 602 194 111 221 0 378 0
Current children cumulated CPU time (s) 29.09
Current children cumulated vsize (KiB) 2408

[startup+29.2014 s]
/proc/loadavg: 1.40 1.19 1.07 2/65 26861
/proc/meminfo: memFree=1659480/2055920 swapFree=4191900/4192956
[pid=26860] ppid=26858 vsize=2408 CPUtime=29.19
/proc/26860/stat : 26860 (varsat-random_s) R 26858 26860 26301 0 -1 4194304 209 0 0 0 2919 0 0 0 25 0 1 0 105822265 2465792 194 1992294400 4194304 5102416 548682068784 18446744073709551615 4249529 0 0 4096 3 0 0 0 17 1 0 0
/proc/26860/statm: 602 194 111 221 0 378 0
Current children cumulated CPU time (s) 29.19
Current children cumulated vsize (KiB) 2408

Child status: 20
Real time (s): 29.251
CPU time (s): 29.2436
CPU user time (s): 29.2416
CPU system time (s): 0.001999
CPU usage (%): 99.9747
Max. virtual memory (cumulated for all children) (KiB): 2408

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.2416
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 214
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 69

runsolver used 0.027995 second user time and 0.06399 second system time

The end

Launcher Data 

Begin job on node31 at 2009-04-26 22:31:31
IDJOB=1732127
IDBENCH=71110
IDSOLVER=539
FILE ID=node31/1732127-1240777891
PBS_JOBID= 9187201
Free space on /tmp= 66416 MiB

SOLVER NAME= VARSAT-random 2009-03-22
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-73-100.cnf
COMMAND LINE= HOME/varsat-random_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732127-1240777891/watcher-1732127-1240777891 -o /tmp/evaluation-result-1732127-1240777891/solver-1732127-1240777891 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-random_static -seed=183829854 HOME/instance-1732127-1240777891.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 21a63ce6f14424dbad7bd9e8fb6cd037
RANDOM SEED=183829854

node31.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		: 3000.213
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		: 3000.213
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:       1660536 kB
Buffers:         49100 kB
Cached:         260188 kB
SwapCached:        384 kB
Active:         106784 kB
Inactive:       216940 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1660536 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            1012 kB
Writeback:           0 kB
Mapped:          22836 kB
Slab:            57380 kB
Committed_AS:   407240 kB
PageTables:       1464 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66416 MiB
End job on node31 at 2009-04-26 22:32:00