Trace number 1773692

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 38.0992 38.1101

General information on the benchmark

NameAPPLICATIONS/
bitverif/minand/minand128.cnf
MD5SUM34e3afebec3eaf03cbcceb51b352993a
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark15.7056
Satisfiable
(Un)Satisfiability was proved
Number of variables53999
Number of clauses159692
Sum of the clauses size372612
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2106460
Number of clauses of size 353230
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 WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.09/0.16	c |  Number of variables:         53999                                         |
0.09/0.16	c |  Number of clauses:          159690                                         |
0.09/0.16	c |  Parse time:                   0.15 s                                       |
0.99/1.09	c |  Simplification time:          0.91 s                                       |
0.99/1.09	c |                                                                             |
0.99/1.09	c ============================[ Search Statistics ]==============================
0.99/1.09	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.99/1.09	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.99/1.09	c ===============================================================================
1.10/1.12	c |       100 |    5466    62843   425839 |    23042       97     24 |  0.041 % |
1.10/1.14	c |       250 |    5466    62843   425839 |    25346      247     18 |  0.041 % |
1.10/1.16	c |       475 |    5434    62843   425839 |    27881      471     16 |  0.100 % |
1.10/1.17	c |       812 |    5432    62843   425839 |    30669      807     16 |  0.104 % |
1.19/1.23	c |      1318 |    5429    62843   425839 |    33736     1311     26 |  0.109 % |
1.29/1.31	c |      2077 |    5428    61043   422037 |    37110     1814     30 |  0.111 % |
1.39/1.41	c |      3216 |    5428    61043   422037 |    40821     2953     32 |  0.111 % |
1.49/1.60	c |      4924 |    5428    61043   422037 |    44903     4661     38 |  0.111 % |
1.89/1.92	c |      7486 |    5425    61031   421998 |    49393     7214     73 |  0.117 % |
2.39/2.49	c |     11330 |    5424    61029   421994 |    54332    11045     75 |  0.119 % |
3.59/3.61	c |     17096 |    5424    61029   421994 |    59766    16811     92 |  0.119 % |
5.29/5.35	c |     25745 |    5424    61029   421994 |    65742    25460    105 |  0.119 % |
8.39/8.46	c |     38719 |    5424    61029   421994 |    72317    38434    122 |  0.119 % |
14.59/14.69	c |     58180 |    5424    61029   421994 |    79548    57895    136 |  0.119 % |
27.28/27.40	c |     87372 |    5424    61029   421994 |    87503    28766    185 |  0.119 % |
37.98/38.09	c ===============================================================================
37.98/38.09	c restarts              : 294
37.98/38.09	c conflicts             : 112063         (2957 /sec)
37.98/38.09	c decisions             : 475427         (12544 /sec)
37.98/38.09	c propagations          : 27432156       (723761 /sec)
37.98/38.09	c conflict literals     : 18409320       (29.11 % deleted)
37.98/38.09	c Memory used           : 92.56 MB
37.98/38.09	c CPU time              : 37.9022 s
37.98/38.09	c 
37.98/38.09	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-1773692-1241213131/watcher-1773692-1241213131 -o /tmp/evaluation-result-1773692-1241213131/solver-1773692-1241213131 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773692-1241213131.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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: 0.92 0.95 0.98 3/64 24277
/proc/meminfo: memFree=1809696/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=7640 CPUtime=0
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 432 0 0 0 0 0 0 0 18 0 1 0 149346325 7823360 416 1992294400 4194304 5092341 548682068848 18446744073709551615 4244898 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 1910 416 63 219 0 1688 0

[startup+0.0604961 s]
/proc/loadavg: 0.92 0.95 0.98 3/64 24277
/proc/meminfo: memFree=1809696/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=12580 CPUtime=0.05
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 1884 0 0 0 5 0 0 0 18 0 1 0 149346325 12881920 1827 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 3145 1827 63 219 0 2923 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 12580

[startup+0.1015 s]
/proc/loadavg: 0.92 0.95 0.98 3/64 24277
/proc/meminfo: memFree=1809696/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=16548 CPUtime=0.09
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 3021 0 0 0 8 1 0 0 18 0 1 0 149346325 16945152 2804 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 4137 2805 63 219 0 3915 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16548

[startup+0.301522 s]
/proc/loadavg: 0.92 0.95 0.98 3/64 24277
/proc/meminfo: memFree=1809696/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=23360 CPUtime=0.29
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 5392 0 0 0 27 2 0 0 19 0 1 0 149346325 23920640 5027 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 5840 5027 87 219 0 5618 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 23360

[startup+0.701569 s]
/proc/loadavg: 0.92 0.95 0.98 3/64 24277
/proc/meminfo: memFree=1809696/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=31508 CPUtime=0.69
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 7491 0 0 0 66 3 0 0 22 0 1 0 149346325 32264192 7126 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 7877 7126 87 219 0 7655 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 31508

[startup+1.50166 s]
/proc/loadavg: 0.92 0.95 0.98 2/65 24278
/proc/meminfo: memFree=1778264/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=28528 CPUtime=1.49
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 8959 0 0 0 145 4 0 0 25 0 1 0 149346325 29212672 5952 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 7132 5952 103 219 0 6910 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 28528

[startup+3.10185 s]
/proc/loadavg: 0.92 0.95 0.98 2/65 24278
/proc/meminfo: memFree=1783960/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=31124 CPUtime=3.09
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 9977 0 0 0 305 4 0 0 25 0 1 0 149346325 31870976 6970 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 7781 6970 103 219 0 7559 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 31124

[startup+6.30122 s]
/proc/loadavg: 0.93 0.95 0.98 2/65 24278
/proc/meminfo: memFree=1775640/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=40856 CPUtime=6.29
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 12313 0 0 0 623 6 0 0 25 0 1 0 149346325 41836544 9306 1992294400 4194304 5092341 548682068848 18446744073709551615 4240667 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 10214 9306 103 219 0 9992 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 40856

[startup+12.702 s]
/proc/loadavg: 0.93 0.96 0.98 2/65 24278
/proc/meminfo: memFree=1759392/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=62752 CPUtime=12.69
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 15988 0 0 0 1262 7 0 0 25 0 1 0 149346325 64258048 12981 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 15688 12981 103 219 0 15466 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 62752

[startup+25.5014 s]
/proc/loadavg: 0.95 0.96 0.98 2/65 24278
/proc/meminfo: memFree=1759720/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=61936 CPUtime=25.48
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 28770 0 0 0 2534 14 0 0 25 0 1 0 149346325 63422464 12719 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 15484 12719 103 219 0 15262 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 61936

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

[startup+31.9052 s]
/proc/loadavg: 0.95 0.96 0.98 2/65 24278
/proc/meminfo: memFree=1745064/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=75072 CPUtime=31.89
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 32228 0 0 0 3172 17 0 0 25 0 1 0 149346325 76873728 16177 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 18768 16177 103 219 0 18546 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 75072

[startup+35.1016 s]
/proc/loadavg: 0.95 0.96 0.98 2/65 24278
/proc/meminfo: memFree=1740136/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=75072 CPUtime=35.08
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 33406 0 0 0 3491 17 0 0 25 0 1 0 149346325 76873728 17355 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 18768 17355 103 219 0 18546 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 75072

[startup+36.7017 s]
/proc/loadavg: 0.95 0.96 0.98 2/65 24278
/proc/meminfo: memFree=1738920/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=75072 CPUtime=36.68
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 33849 0 0 0 3650 18 0 0 25 0 1 0 149346325 76873728 17798 1992294400 4194304 5092341 548682068848 18446744073709551615 4250218 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 18768 17798 103 219 0 18546 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 75072

[startup+37.5018 s]
/proc/loadavg: 0.95 0.96 0.98 2/65 24278
/proc/meminfo: memFree=1737832/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=94780 CPUtime=37.48
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 34018 0 0 0 3730 18 0 0 25 0 1 0 149346325 97054720 17967 1992294400 4194304 5092341 548682068848 18446744073709551615 4240843 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 23695 17967 103 219 0 23473 0
Current children cumulated CPU time (s) 37.48
Current children cumulated vsize (KiB) 94780

[startup+37.9019 s]
/proc/loadavg: 0.95 0.96 0.98 2/65 24278
/proc/meminfo: memFree=1737832/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=94780 CPUtime=37.88
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194304 34081 0 0 0 3770 18 0 0 25 0 1 0 149346325 97054720 18030 1992294400 4194304 5092341 548682068848 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 23695 18030 103 219 0 23473 0
Current children cumulated CPU time (s) 37.88
Current children cumulated vsize (KiB) 94780

[startup+38.1019 s]
/proc/loadavg: 0.95 0.96 0.98 2/65 24278
/proc/meminfo: memFree=1737832/2055920 swapFree=4180392/4192956
[pid=24277] ppid=24275 vsize=0 CPUtime=38.08
/proc/24277/stat : 24277 (minisat) R 24275 24277 24240 0 -1 4194308 34107 0 0 0 3790 18 0 0 25 0 1 0 149346325 0 0 1992294400 0 0 0 0 0 0 0 4096 3 0 0 0 17 1 0 0
/proc/24277/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 38.08
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 38.1101
CPU time (s): 38.0992
CPU user time (s): 37.9022
CPU system time (s): 0.19697
CPU usage (%): 99.9713
Max. virtual memory (cumulated for all children) (KiB): 94780

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 37.9022
system time used= 0.19697
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 34107
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= 95

runsolver used 0.038994 second user time and 0.083987 second system time

The end

Launcher Data 

Begin job on node20 at 2009-05-01 23:25:31
IDJOB=1773692
IDBENCH=70776
IDSOLVER=608
FILE ID=node20/1773692-1241213131
PBS_JOBID= 9224729
Free space on /tmp= 66436 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/minand/minand128.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773692-1241213131/watcher-1773692-1241213131 -o /tmp/evaluation-result-1773692-1241213131/solver-1773692-1241213131 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773692-1241213131.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 34e3afebec3eaf03cbcceb51b352993a
RANDOM SEED=1065356467

node20.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		: 3000.214
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		: 3000.214
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:       1810176 kB
Buffers:         61964 kB
Cached:         100084 kB
SwapCached:       6320 kB
Active:          25100 kB
Inactive:       144932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1810176 kB
SwapTotal:     4192956 kB
SwapFree:      4180392 kB
Dirty:            3568 kB
Writeback:           0 kB
Mapped:          13372 kB
Slab:            61744 kB
Committed_AS:   774404 kB
PageTables:       1396 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= 66436 MiB
End job on node20 at 2009-05-01 23:26:09