Trace number 1773642

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 7.29689 7.29986

General information on the benchmark

NameAPPLICATIONS/bitverif/
minandmaxor/minandmaxor032.cnf
MD5SUM25c7914ccc82f6f574febbd03924feed
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.06992
Satisfiable
(Un)Satisfiability was proved
Number of variables16239
Number of clauses48332
Sum of the clauses size112772
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 232220
Number of clauses of size 316110
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 |                                                                             |
0.01/0.05	c |  Number of variables:         16239                                         |
0.01/0.05	c |  Number of clauses:           48330                                         |
0.01/0.05	c |  Parse time:                   0.05 s                                       |
0.19/0.24	c |  Simplification time:          0.19 s                                       |
0.19/0.24	c |                                                                             |
0.19/0.24	c ============================[ Search Statistics ]==============================
0.19/0.24	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.24	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.24	c ===============================================================================
0.19/0.26	c |       100 |    5188    25841    96110 |     9475      100     14 |  0.062 % |
0.19/0.27	c |       250 |    5188    25841    96110 |    10422      250     15 |  0.062 % |
0.19/0.29	c |       475 |    5188    25841    96110 |    11464      475     21 |  0.062 % |
0.29/0.33	c |       812 |    5188    25841    96110 |    12611      812     30 |  0.062 % |
0.29/0.39	c |      1318 |    5188    25841    96110 |    13872     1318     37 |  0.062 % |
0.39/0.50	c |      2077 |    5188    25841    96110 |    15259     2077     40 |  0.062 % |
0.59/0.62	c |      3216 |    5188    25841    96110 |    16785     3216     45 |  0.062 % |
0.79/0.85	c |      4924 |    5187    25809    96046 |    18464     4922     44 |  0.068 % |
1.19/1.22	c |      7486 |    5187    25809    96046 |    20310     7484     45 |  0.068 % |
1.69/1.78	c |     11330 |    5187    25809    96046 |    22341    11328     46 |  0.068 % |
2.69/2.73	c |     17096 |    5187    25809    96046 |    24575    17094     52 |  0.068 % |
4.49/4.58	c |     25745 |    5185    25764    95938 |    27033    12958     48 |  0.080 % |
7.19/7.29	c ===============================================================================
7.19/7.29	c restarts              : 126
7.19/7.29	c conflicts             : 38314          (5280 /sec)
7.19/7.29	c decisions             : 174546         (24056 /sec)
7.19/7.29	c propagations          : 13300424       (1833051 /sec)
7.19/7.29	c conflict literals     : 2050187        (25.17 % deleted)
7.19/7.29	c Memory used           : 21.11 MB
7.19/7.29	c CPU time              : 7.2559 s
7.19/7.29	c 
7.19/7.29	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-1773642-1241212781/watcher-1773642-1241212781 -o /tmp/evaluation-result-1773642-1241212781/solver-1773642-1241212781 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773642-1241212781.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 0.98 0.99 3/64 28378
/proc/meminfo: memFree=1155816/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=7608 CPUtime=0
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 372 0 0 0 0 0 0 0 18 0 1 0 149306659 7790592 356 1992294400 4194304 5092341 548682068848 18446744073709551615 4215332 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 1902 356 63 219 0 1680 0

[startup+0.0177871 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 28378
/proc/meminfo: memFree=1155816/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=8624 CPUtime=0.01
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 679 0 0 0 1 0 0 0 18 0 1 0 149306659 8830976 663 1992294400 4194304 5092341 548682068848 18446744073709551615 4515195 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 2194 671 63 219 0 1972 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 8624

[startup+0.101793 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 28378
/proc/meminfo: memFree=1155816/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=12188 CPUtime=0.09
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 1779 0 0 0 9 0 0 0 18 0 1 0 149306659 12480512 1722 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 3047 1722 88 219 0 2825 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12188

[startup+0.301831 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 28378
/proc/meminfo: memFree=1155816/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=12488 CPUtime=0.29
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 2265 0 0 0 29 0 0 0 19 0 1 0 149306659 12787712 1595 1992294400 4194304 5092341 548682068848 18446744073709551615 4241876 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 3122 1595 102 219 0 2900 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12488

[startup+0.701907 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 28378
/proc/meminfo: memFree=1155816/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=12488 CPUtime=0.69
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 2426 0 0 0 69 0 0 0 22 0 1 0 149306659 12787712 1756 1992294400 4194304 5092341 548682068848 18446744073709551615 4241414 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 3122 1756 102 219 0 2900 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12488

[startup+1.50106 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 28379
/proc/meminfo: memFree=1148768/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=12488 CPUtime=1.49
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 2696 0 0 0 148 1 0 0 25 0 1 0 149306659 12787712 2026 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 3122 2026 102 219 0 2900 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12488

[startup+3.10136 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 28379
/proc/meminfo: memFree=1147168/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=12636 CPUtime=3.08
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 3349 0 0 0 307 1 0 0 25 0 1 0 149306659 12939264 2679 1992294400 4194304 5092341 548682068848 18446744073709551615 4241067 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 3159 2679 102 219 0 2937 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 12636

[startup+6.30196 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 28379
/proc/meminfo: memFree=1145184/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=13652 CPUtime=6.29
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 5174 0 0 0 626 3 0 0 25 0 1 0 149306659 13979648 2984 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 3413 2984 102 219 0 3191 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 13652

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

[startup+6.70104 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 28379
/proc/meminfo: memFree=1143712/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=21608 CPUtime=6.69
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 6598 0 0 0 666 3 0 0 25 0 1 0 149306659 22126592 4408 1992294400 4194304 5092341 548682068848 18446744073709551615 4241089 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 5402 4408 102 219 0 5180 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 21608

[startup+7.10111 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 28379
/proc/meminfo: memFree=1143712/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=21608 CPUtime=7.09
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 6665 0 0 0 706 3 0 0 25 0 1 0 149306659 22126592 4475 1992294400 4194304 5092341 548682068848 18446744073709551615 4240636 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 5402 4475 102 219 0 5180 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 21608

[startup+7.20113 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 28379
/proc/meminfo: memFree=1143712/2055920 swapFree=4181168/4192956
[pid=28378] ppid=28376 vsize=21608 CPUtime=7.19
/proc/28378/stat : 28378 (minisat) R 28376 28378 28341 0 -1 4194304 6677 0 0 0 716 3 0 0 25 0 1 0 149306659 22126592 4487 1992294400 4194304 5092341 548682068848 18446744073709551615 4240636 0 0 4096 3 0 0 0 17 1 0 0
/proc/28378/statm: 5402 4487 102 219 0 5180 0
Current children cumulated CPU time (s) 7.19
Current children cumulated vsize (KiB) 21608

Child status: 20
Real time (s): 7.29986
CPU time (s): 7.29689
CPU user time (s): 7.2559
CPU system time (s): 0.040993
CPU usage (%): 99.9593
Max. virtual memory (cumulated for all children) (KiB): 21608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.2559
system time used= 0.040993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6698
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= 10

runsolver used 0.012998 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node37 at 2009-05-01 23:19:41
IDJOB=1773642
IDBENCH=70768
IDSOLVER=608
FILE ID=node37/1773642-1241212781
PBS_JOBID= 9224727
Free space on /tmp= 66540 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor032.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773642-1241212781/watcher-1773642-1241212781 -o /tmp/evaluation-result-1773642-1241212781/solver-1773642-1241212781 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773642-1241212781.cnf

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

MD5SUM BENCH= 25c7914ccc82f6f574febbd03924feed
RANDOM SEED=1209561122

node37.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		: 3000.259
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		: 3000.259
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:       1156232 kB
Buffers:         70448 kB
Cached:         733960 kB
SwapCached:       5608 kB
Active:         115948 kB
Inactive:       696240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1156232 kB
SwapTotal:     4192956 kB
SwapFree:      4181168 kB
Dirty:            1920 kB
Writeback:           0 kB
Mapped:          13468 kB
Slab:            73572 kB
Committed_AS:   799740 kB
PageTables:       1372 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= 66540 MiB
End job on node37 at 2009-05-01 23:19:48