Trace number 1806857

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
minisat2-core 070721SAT 1.58876 1.58987

General information on the benchmark

NameCRAFTED/sgen/sat/
sgen1-sat-140-100.cnf
MD5SUM07b17839a612470dd109e37b3b09aec5
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.58076
Satisfiable
(Un)Satisfiability was proved
Number of variables140
Number of clauses336
Sum of the clauses size840
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2280
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 556
Number of clauses of size over 50

Solver Data 

0.00/0.00	This is 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:  140                                                  |
0.00/0.00	|  Number of clauses:    336                                                  |
0.00/0.00	|  Parsing time:         0.00         s                                       |
0.00/0.00	============================[ Search Statistics ]==============================
0.00/0.00	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	===============================================================================
0.00/0.00	|         0 |     140      336      840 |      112        0    nan |  0.000 % |
0.00/0.00	|       104 |     140      336      840 |      123      104     26 |  0.005 % |
0.00/0.00	|       254 |     140      336      840 |      135      173     23 |  0.005 % |
0.00/0.00	|       481 |     140      336      840 |      149      132     20 |  0.005 % |
0.00/0.01	|       818 |     140      336      840 |      163      162     19 |  0.005 % |
0.00/0.02	|      1325 |     140      336      840 |      180      126     14 |  0.005 % |
0.00/0.03	|      2084 |     140      336      840 |      198      202     18 |  0.005 % |
0.05/0.05	|      3224 |     140      336      840 |      218      156     14 |  0.005 % |
0.05/0.08	|      4932 |     140      336      840 |      240      271     19 |  0.005 % |
0.09/0.13	|      7495 |     140      336      840 |      264      286     19 |  0.005 % |
0.19/0.20	|     11339 |     140      336      840 |      290      249     17 |  0.005 % |
0.29/0.31	|     17105 |     140      336      840 |      319      203     15 |  0.005 % |
0.39/0.47	|     25754 |     140      336      840 |      351      303     17 |  0.005 % |
0.69/0.73	|     38729 |     140      336      840 |      386      337     18 |  0.005 % |
1.10/1.12	|     58191 |     140      336      840 |      425      243     14 |  0.005 % |
1.49/1.58	===============================================================================
1.49/1.58	restarts              : 15
1.49/1.58	conflicts             : 80599          (50763 /sec)
1.49/1.58	decisions             : 96411          (1.54 % random) (60721 /sec)
1.49/1.58	propagations          : 2683939        (1690396 /sec)
1.49/1.58	conflict literals     : 2206290        (9.55 % deleted)
1.49/1.58	Memory used           : 1.98 MB
1.49/1.58	CPU time              : 1.58776 s
1.49/1.58	
1.49/1.58	s SATISFIABLE
1.49/1.58	v -1 -2 3 -4 -5 6 -7 -8 -9 -10 -11 12 -13 -14 -15 -16 -17 18 -19 -20 -21 -22 23 -24 -25 -26 27 -28 -29 -30 -31 32 -33 -34 -35 36 -37 -38 -39 -40 41 -42 -43 -44 -45 -46 -47 -48 49 -50 51 -52 -53 -54 -55 -56 -57 -58 59 -60 61 -62 -63 -64 -65 -66 -67 68 -69 -70 71 -72 -73 -74 -75 -76 -77 78 -79 -80 -81 -82 -83 84 -85 -86 87 -88 -89 -90 -91 -92 -93 94 -95 -96 -97 -98 99 -100 -101 -102 -103 104 -105 -106 107 -108 -109 -110 -111 -112 113 -114 -115 116 -117 -118 -119 -120 -121 -122 -123 124 -125 -126 -127 128 -129 -130 -131 -132 133 -134 -135 136 -137 -138 -139 -140 0

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1806857-1242153057/watcher-1806857-1242153057 -o /tmp/evaluation-result-1806857-1242153057/solver-1806857-1242153057 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1806857-1242153057.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12251
/proc/meminfo: memFree=1756024/2055920 swapFree=4176468/4192956
[pid=12251] ppid=12249 vsize=1892 CPUtime=0
/proc/12251/stat : 12251 (minisat_static) R 12249 12251 11895 0 -1 4194304 117 0 0 0 0 0 0 0 20 0 1 0 243333463 1937408 102 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 0 0 0
/proc/12251/statm: 473 102 77 171 0 299 0

[startup+0.0553659 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12251
/proc/meminfo: memFree=1756024/2055920 swapFree=4176468/4192956
[pid=12251] ppid=12249 vsize=1892 CPUtime=0.05
/proc/12251/stat : 12251 (minisat_static) R 12249 12251 11895 0 -1 4194304 123 0 0 0 5 0 0 0 20 0 1 0 243333463 1937408 108 1992294400 134512640 135213614 4294956256 18446744073709551615 134527171 0 0 4096 3 0 0 0 17 0 0 0
/proc/12251/statm: 473 108 77 171 0 299 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1892

[startup+0.101371 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12251
/proc/meminfo: memFree=1756024/2055920 swapFree=4176468/4192956
[pid=12251] ppid=12249 vsize=1892 CPUtime=0.09
/proc/12251/stat : 12251 (minisat_static) R 12249 12251 11895 0 -1 4194304 126 0 0 0 9 0 0 0 21 0 1 0 243333463 1937408 111 1992294400 134512640 135213614 4294956256 18446744073709551615 134529687 0 0 4096 3 0 0 0 17 0 0 0
/proc/12251/statm: 473 111 77 171 0 299 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1892

[startup+0.301392 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12251
/proc/meminfo: memFree=1756024/2055920 swapFree=4176468/4192956
[pid=12251] ppid=12249 vsize=1892 CPUtime=0.29
/proc/12251/stat : 12251 (minisat_static) R 12249 12251 11895 0 -1 4194304 132 0 0 0 29 0 0 0 22 0 1 0 243333463 1937408 117 1992294400 134512640 135213614 4294956256 18446744073709551615 134529769 0 0 4096 3 0 0 0 17 0 0 0
/proc/12251/statm: 473 117 77 171 0 299 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1892

[startup+0.701434 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12251
/proc/meminfo: memFree=1756024/2055920 swapFree=4176468/4192956
[pid=12251] ppid=12249 vsize=1892 CPUtime=0.69
/proc/12251/stat : 12251 (minisat_static) R 12249 12251 11895 0 -1 4194304 137 0 0 0 69 0 0 0 25 0 1 0 243333463 1937408 122 1992294400 134512640 135213614 4294956256 18446744073709551615 134526959 0 0 4096 3 0 0 0 17 0 0 0
/proc/12251/statm: 473 122 77 171 0 299 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1892

[startup+1.50152 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12252
/proc/meminfo: memFree=1755760/2055920 swapFree=4176468/4192956
[pid=12251] ppid=12249 vsize=2024 CPUtime=1.49
/proc/12251/stat : 12251 (minisat_static) R 12249 12251 11895 0 -1 4194304 145 0 0 0 149 0 0 0 25 0 1 0 243333463 2072576 130 1992294400 134512640 135213614 4294956256 18446744073709551615 134536205 0 0 4096 3 0 0 0 17 0 0 0
/proc/12251/statm: 506 130 77 171 0 332 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2024

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

Child status: 10
Real time (s): 1.58987
CPU time (s): 1.58876
CPU user time (s): 1.58776
CPU system time (s): 0.000999
CPU usage (%): 99.9298
Max. virtual memory (cumulated for all children) (KiB): 2024

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.58776
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 159
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= 1
involuntary context switches= 4

runsolver used 0.003999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node47 at 2009-05-12 20:30:57
IDJOB=1806857
IDBENCH=71116
IDSOLVER=651
FILE ID=node47/1806857-1242153057
PBS_JOBID= 9289677
Free space on /tmp= 66228 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT09/CRAFTED/sgen/sat/sgen1-sat-140-100.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1806857-1242153057/watcher-1806857-1242153057 -o /tmp/evaluation-result-1806857-1242153057/solver-1806857-1242153057 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1806857-1242153057.cnf

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

MD5SUM BENCH= 07b17839a612470dd109e37b3b09aec5
RANDOM SEED=508038562

node47.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		: 3000.212
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		: 3000.212
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:       1756440 kB
Buffers:         39564 kB
Cached:         183628 kB
SwapCached:      10252 kB
Active:          12320 kB
Inactive:       223036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1756440 kB
SwapTotal:     4192956 kB
SwapFree:      4176468 kB
Dirty:             788 kB
Writeback:           0 kB
Mapped:          14512 kB
Slab:            50036 kB
Committed_AS:   932240 kB
PageTables:       1448 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= 66228 MiB
End job on node47 at 2009-05-12 20:30:58