Trace number 428133

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
minimarch 2007-04-26 (fixed)UNSAT 3.75143 3.75423

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
MD5SUMa72030f9b5b8bc8b27629e6299239dd6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.27281
Satisfiable
(Un)Satisfiability was proved
Number of variables1665
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	This is MiniMarch 1.1, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  1665                                                 |
0.00/0.00	|  Number of clauses:    5177                                                 |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.00/0.03	============================[ Search Statistics ]==============================
0.00/0.03	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.03	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.03	===============================================================================
0.00/0.03	|         0 |    1402     4768    14215 |     1589        0    nan |  0.000 % |
0.00/0.03	|       100 |    1402     4768    14215 |     1748      100     20 |  0.000 % |
0.00/0.05	|       250 |    1387     4673    13946 |     1923      249     18 |  0.901 % |
0.00/0.06	|       475 |    1387     4673    13946 |     2115      474     19 |  0.901 % |
0.07/0.09	|       812 |    1387     4673    13946 |     2326      811     18 |  0.901 % |
0.09/0.13	|      1318 |    1387     4673    13946 |     2559     1317     19 |  0.901 % |
0.19/0.20	|      2079 |    1387     4673    13946 |     2815     2078     18 |  0.901 % |
0.29/0.31	|      3218 |    1387     4673    13946 |     3097     1725     16 |  0.901 % |
0.39/0.49	|      4927 |    1387     4673    13946 |     3406     1821     18 |  0.901 % |
0.69/0.75	|      7490 |    1387     4673    13946 |     3747     2624     16 |  0.901 % |
1.10/1.16	|     11334 |    1387     4673    13946 |     4122     2627     16 |  0.901 % |
1.69/1.78	|     17102 |    1387     4673    13946 |     4534     4163     17 |  0.901 % |
2.69/2.77	|     25751 |    1386     4667    13929 |     4988     2864     17 |  0.961 % |
3.69/3.75	===============================================================================
3.69/3.75	lookaheads            : 3652
3.69/3.75	variable balance      : 0.00
3.69/3.75	restarts              : 13
3.69/3.75	conflicts             : 34317          (9157 /sec)
3.69/3.75	decisions             : 43583          (1.86 % random) (11630 /sec)
3.69/3.75	decision = positive   : 23412
3.69/3.75	decision = negative   : 20171
3.69/3.75	propagations          : 6286747        (1677616 /sec)
3.69/3.75	conflict literals     : 623631         (40.07 % deleted)
3.69/3.75	Memory used           : 2.85 MB
3.69/3.75	CPU time              : 3.74743 s
3.69/3.75	
3.69/3.75	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node20/watcher-428133-1177702695 -o ROOT/results/node20/solver-428133-1177702695 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428133-1177702695/minimarch_fixed /tmp/evaluation/428133-1177702695/instance-428133-1177702695.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): 2400 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: 0.93 0.98 0.99 3/77 6003
/proc/meminfo: memFree=1647448/2055920 swapFree=4154160/4192956
[pid=6003] ppid=6001 vsize=2132 CPUtime=0
/proc/6003/stat : 6003 (minimarch_fixed) R 6001 6003 5178 0 -1 4194304 196 0 0 0 0 0 0 0 18 0 1 0 218186822 2183168 181 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134691888 0 0 4096 3 0 0 0 17 1 0 0
/proc/6003/statm: 533 181 51 132 0 398 0

[startup+0.075828 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 6003
/proc/meminfo: memFree=1647448/2055920 swapFree=4154160/4192956
[pid=6003] ppid=6001 vsize=2380 CPUtime=0.07
/proc/6003/stat : 6003 (minimarch_fixed) R 6001 6003 5178 0 -1 4194304 281 0 0 0 7 0 0 0 18 0 1 0 218186822 2437120 266 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/6003/statm: 595 266 67 132 0 460 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2380

[startup+0.101834 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 6003
/proc/meminfo: memFree=1647448/2055920 swapFree=4154160/4192956
[pid=6003] ppid=6001 vsize=2380 CPUtime=0.09
/proc/6003/stat : 6003 (minimarch_fixed) R 6001 6003 5178 0 -1 4194304 281 0 0 0 9 0 0 0 18 0 1 0 218186822 2437120 266 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551714 0 0 4096 3 0 0 0 17 1 0 0
/proc/6003/statm: 595 266 67 132 0 460 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2380

[startup+0.301874 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 6003
/proc/meminfo: memFree=1647448/2055920 swapFree=4154160/4192956
[pid=6003] ppid=6001 vsize=2512 CPUtime=0.29
/proc/6003/stat : 6003 (minimarch_fixed) R 6001 6003 5178 0 -1 4194304 308 0 0 0 29 0 0 0 19 0 1 0 218186822 2572288 293 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551374 0 0 4096 3 0 0 0 17 1 0 0
/proc/6003/statm: 628 293 67 132 0 493 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2512

[startup+0.701955 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 6003
/proc/meminfo: memFree=1647448/2055920 swapFree=4154160/4192956
[pid=6003] ppid=6001 vsize=2512 CPUtime=0.69
/proc/6003/stat : 6003 (minimarch_fixed) R 6001 6003 5178 0 -1 4194304 329 0 0 0 69 0 0 0 22 0 1 0 218186822 2572288 314 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/6003/statm: 628 314 67 132 0 493 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2512

[startup+1.50112 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 6004
/proc/meminfo: memFree=1646416/2055920 swapFree=4154160/4192956
[pid=6003] ppid=6001 vsize=2652 CPUtime=1.49
/proc/6003/stat : 6003 (minimarch_fixed) R 6001 6003 5178 0 -1 4194304 359 0 0 0 149 0 0 0 25 0 1 0 218186822 2715648 344 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551667 0 0 4096 3 0 0 0 17 1 0 0
/proc/6003/statm: 663 344 67 132 0 528 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2652

[startup+3.10144 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 6004
/proc/meminfo: memFree=1646096/2055920 swapFree=4154160/4192956
[pid=6003] ppid=6001 vsize=2784 CPUtime=3.09
/proc/6003/stat : 6003 (minimarch_fixed) R 6001 6003 5178 0 -1 4194304 402 0 0 0 309 0 0 0 25 0 1 0 218186822 2850816 387 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551287 0 0 4096 3 0 0 0 17 1 0 0
/proc/6003/statm: 696 387 67 132 0 561 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2784

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

[startup+3.50152 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 6004
/proc/meminfo: memFree=1646032/2055920 swapFree=4154160/4192956
[pid=6003] ppid=6001 vsize=2916 CPUtime=3.49
/proc/6003/stat : 6003 (minimarch_fixed) R 6001 6003 5178 0 -1 4194304 406 0 0 0 349 0 0 0 25 0 1 0 218186822 2985984 391 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551681 0 0 4096 3 0 0 0 17 1 0 0
/proc/6003/statm: 729 391 67 132 0 594 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 2916

[startup+3.70156 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 6004
/proc/meminfo: memFree=1646032/2055920 swapFree=4154160/4192956
[pid=6003] ppid=6001 vsize=2916 CPUtime=3.69
/proc/6003/stat : 6003 (minimarch_fixed) R 6001 6003 5178 0 -1 4194304 406 0 0 0 369 0 0 0 25 0 1 0 218186822 2985984 391 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134550981 0 0 4096 3 0 0 0 17 1 0 0
/proc/6003/statm: 729 391 67 132 0 594 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 2916

Child status: 20
Real time (s): 3.75423
CPU time (s): 3.75143
CPU user time (s): 3.74743
CPU system time (s): 0.003999
CPU usage (%): 99.9254
Max. virtual memory (cumulated for all children) (KiB): 2916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.74743
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 413
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= 8
involuntary context switches= 2

runsolver used 0.005999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node20 on Fri Apr 27 19:38:15 UTC 2007

IDJOB= 428133
IDBENCH= 20335
IDSOLVER= 198
FILE ID= node20/428133-1177702695

PBS_JOBID= 4698681

Free space on /tmp= 66527 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/428133-1177702695/minimarch_fixed /tmp/evaluation/428133-1177702695/instance-428133-1177702695.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-428133-1177702695 -o ROOT/results/node20/solver-428133-1177702695 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428133-1177702695/minimarch_fixed /tmp/evaluation/428133-1177702695/instance-428133-1177702695.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  a72030f9b5b8bc8b27629e6299239dd6

RANDOM SEED= 331472563

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node20.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.265
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		: 3000.265
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:       1647920 kB
Buffers:         49484 kB
Cached:         268216 kB
SwapCached:      18424 kB
Active:         196280 kB
Inactive:       146748 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1647920 kB
SwapTotal:     4192956 kB
SwapFree:      4154160 kB
Dirty:            3108 kB
Writeback:           0 kB
Mapped:          30476 kB
Slab:            50524 kB
Committed_AS:  2111952 kB
PageTables:       1748 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= 66527 MiB

End job on node20 on Fri Apr 27 19:38:19 UTC 2007