Trace number 426781

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
KCNFS 2004SAT 9.8955 9.89911

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S1257266562-15.SAT.shuffled.cnf
MD5SUM5e7fef8a5169f386cc435a1aecb40c3c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.029995
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1533
Sum of the clauses size4599
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31533
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	
0.00/0.01	c Computed by /tmp/evaluation/426781-1177829061/kcnfs-2004   V. 03/02/12
0.00/0.01	c Input file : '/tmp/evaluation/426781-1177829061/instance-426781-1177829061.cnf' (adding resolvants)
9.79/9.89	c [360 variables, 1533 clauses, ratio 4.26, mean occ 6, 3-SAT]
9.79/9.89	s SATISFIABLE
9.79/9.89	v  -251   273   254  -167  -285
9.79/9.89	v  -302   271  -109   -92   124
9.79/9.89	v  -192   -28  -145   -13   354
9.79/9.89	v   -53   170  -215   -20   213
9.79/9.89	v  -105    36   274   -62   276
9.79/9.89	v  -249  -157    -5   130  -210
9.79/9.89	v  -262   284   329   118   -99
9.79/9.89	v   110  -207   101    -1   163
9.79/9.89	v   -17  -235  -300  -314  -297
9.79/9.89	v  -358   -38   -11  -140  -199
9.79/9.89	v  -222    54    93  -173    42
9.79/9.89	v   211   349   149    55   131
9.79/9.89	v  -218   138   337   359   308
9.79/9.89	v   112    40  -169   -44   144
9.79/9.89	v   320   345   102   295   312
9.79/9.89	v   208   147   294    83   -66
9.79/9.89	v   226   -34   257  -104     4
9.79/9.89	v  -241  -311   -77   139  -291
9.79/9.89	v  -103    60  -281   244    -3
9.79/9.89	v  -357   316  -324    14  -292
9.79/9.89	v    78   137   -39  -196   -95
9.79/9.89	v   248   161    19   343  -205
9.79/9.89	v    21   307  -228  -330   323
9.79/9.89	v   113   -45    41   -67  -191
9.79/9.89	v   328   260  -229    69   100
9.79/9.89	v  -166  -181   168   -25   155
9.79/9.89	v  -152    75  -336   356   -84
9.79/9.89	v   283  -340    15   153   290
9.79/9.89	v    27   223   225  -132   -94
9.79/9.89	v   172  -333   350  -186   117
9.79/9.89	v    74  -180   282   352   214
9.79/9.89	v  -289   159   279   317   108
9.79/9.89	v   296   231  -200  -121   351
9.79/9.89	v  -233   293  -187    72   -49
9.79/9.89	v   259   125  -236   -73    98
9.79/9.89	v    23  -265    80   247  -209
9.79/9.89	v   171   331  -264    82   175
9.79/9.89	v   -10  -232  -309  -219  -184
9.79/9.89	v   -16  -190    57   -43    18
9.79/9.89	v  -347  -250   183   286  -230
9.79/9.89	v  -174  -299    31   -61     9
9.79/9.89	v   160  -201     6  -318   280
9.79/9.89	v  -120   353   134   106    12
9.79/9.89	v   -47    64   195  -114   -81
9.79/9.89	v   -32  -224  -238  -194   339
9.79/9.89	v  -165  -128  -301  -246  -127
9.79/9.89	v   162    70  -252    52  -344
9.79/9.89	v  -313    58  -258   -71   277
9.79/9.89	v    26   255   221   245    -8
9.79/9.89	v  -156   325  -242    59  -253
9.79/9.89	v  -217   -51  -304    48  -123
9.79/9.89	v    90  -135  -193  -275   272
9.79/9.89	v  -243  -136  -122   322   -33
9.79/9.89	v    97   298  -239   182   197
9.79/9.89	v    -2  -176  -220  -212  -107
9.79/9.89	v  -321  -326  -234   -89   342
9.79/9.89	v   146   133   203    24  -188
9.79/9.89	v   204  -268   261   288  -115
9.79/9.89	v   -50  -310   -85  -335  -256
9.79/9.89	v   178    68  -303   315   -65
9.79/9.89	v    63    37   306   -87  -227
9.79/9.89	v  -346   266   164    35  -240
9.79/9.89	v  -189   -46   -88   206  -185
9.79/9.89	v   148    30   151   141  -334
9.79/9.89	v   177   -91   327   129   158
9.79/9.89	v   -22    29   -56    76    79
9.79/9.89	v    86   -96   111   116   119
9.79/9.89	v  -126  -142   143   150  -154
9.79/9.89	v  -198  -202   216   237   263
9.79/9.89	v   267   269   270   278   287
9.79/9.89	v   319   332   338  -341   348
9.79/9.89	v   355   360    -7     0
9.79/9.89	c Computation time    : 9.880 seconds
9.79/9.89	c Execution time      : 9.890 seconds
9.79/9.89	c Size of search tree : 19922 nodes
9.79/9.89

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node51/watcher-426781-1177829061 -o ROOT/results/node51/solver-426781-1177829061 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426781-1177829061/kcnfs-2004 /tmp/evaluation/426781-1177829061/instance-426781-1177829061.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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
Using a pseudo terminal to collect output from the solver
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.96 0.98 1.04 3/64 2953
/proc/meminfo: memFree=1436512/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16552 CPUtime=0
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 197 0 0 0 0 0 0 0 18 0 1 0 137751258 16949248 177 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134614467 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4138 177 40 107 0 4027 0

[startup+0.0515929 s]
/proc/loadavg: 0.96 0.98 1.04 3/64 2953
/proc/meminfo: memFree=1436512/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=0.04
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 4 0 0 0 18 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134530262 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 16600

[startup+0.101597 s]
/proc/loadavg: 0.96 0.98 1.04 3/64 2953
/proc/meminfo: memFree=1436512/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=0.09
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 9 0 0 0 18 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134577660 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16600

[startup+0.301616 s]
/proc/loadavg: 0.96 0.98 1.04 3/64 2953
/proc/meminfo: memFree=1436512/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=0.29
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 29 0 0 0 19 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528309 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16600

[startup+0.701651 s]
/proc/loadavg: 0.96 0.98 1.04 3/64 2953
/proc/meminfo: memFree=1436512/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=0.69
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 69 0 0 0 22 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134529131 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16600

[startup+1.50272 s]
/proc/loadavg: 0.96 0.98 1.03 2/65 2954
/proc/meminfo: memFree=1435672/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=1.49
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 149 0 0 0 25 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134567968 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16600

[startup+3.10187 s]
/proc/loadavg: 0.96 0.98 1.03 2/65 2954
/proc/meminfo: memFree=1435544/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=3.09
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 309 0 0 0 25 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528773 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16600

[startup+6.30116 s]
/proc/loadavg: 0.96 0.98 1.03 2/65 2954
/proc/meminfo: memFree=1435544/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=6.29
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 629 0 0 0 25 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528187 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 16600

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

[startup+7.9013 s]
/proc/loadavg: 0.96 0.98 1.03 2/65 2954
/proc/meminfo: memFree=1435544/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=7.89
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 789 0 0 0 25 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134578001 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 16600

[startup+8.70137 s]
/proc/loadavg: 0.96 0.98 1.03 2/65 2954
/proc/meminfo: memFree=1435544/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=8.69
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 869 0 0 0 25 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528948 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 16600

[startup+9.50144 s]
/proc/loadavg: 0.96 0.98 1.03 2/65 2954
/proc/meminfo: memFree=1435544/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=9.49
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 949 0 0 0 25 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528344 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 16600

[startup+9.70146 s]
/proc/loadavg: 0.96 0.98 1.03 2/65 2954
/proc/meminfo: memFree=1435544/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=9.69
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 969 0 0 0 25 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134530612 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 9.69
Current children cumulated vsize (KiB) 16600

[startup+9.80147 s]
/proc/loadavg: 0.96 0.98 1.03 2/65 2954
/proc/meminfo: memFree=1435544/2055920 swapFree=4183292/4192956
[pid=2953] ppid=2951 vsize=16600 CPUtime=9.79
/proc/2953/stat : 2953 (kcnfs-2004) R 2951 2953 2226 0 -1 0 293 0 0 0 979 0 0 0 25 0 1 0 137751258 16998400 273 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134577900 0 0 4096 0 0 0 0 17 1 0 0
/proc/2953/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 9.79
Current children cumulated vsize (KiB) 16600

Child status: 10
Real time (s): 9.89911
CPU time (s): 9.8955
CPU user time (s): 9.8895
CPU system time (s): 0.005999
CPU usage (%): 99.9634
Max. virtual memory (cumulated for all children) (KiB): 16600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.8895
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 296
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= 9

runsolver used 0.010998 second user time and 0.026995 second system time

The end

Launcher Data (download as text)

Begin job on node51 on Sun Apr 29 06:44:21 UTC 2007

IDJOB= 426781
IDBENCH= 19987
IDSOLVER= 194
FILE ID= node51/426781-1177829061

PBS_JOBID= 4718267

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S1257266562-15.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426781-1177829061/kcnfs-2004 /tmp/evaluation/426781-1177829061/instance-426781-1177829061.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-426781-1177829061 -o ROOT/results/node51/solver-426781-1177829061 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426781-1177829061/kcnfs-2004 /tmp/evaluation/426781-1177829061/instance-426781-1177829061.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  5e7fef8a5169f386cc435a1aecb40c3c

RANDOM SEED= 775163714

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node51.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		: 3000.223
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		: 3000.223
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:       1437048 kB
Buffers:         50832 kB
Cached:         408884 kB
SwapCached:       3772 kB
Active:         251564 kB
Inactive:       295948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1437048 kB
SwapTotal:     4192956 kB
SwapFree:      4183292 kB
Dirty:            3356 kB
Writeback:           0 kB
Mapped:          15752 kB
Slab:            57484 kB
Committed_AS:  3858392 kB
PageTables:       1408 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= 66561 MiB

End job on node51 on Sun Apr 29 06:44:31 UTC 2007