Trace number 426552

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
MXC 2007-02-08SAT 2.70159 2.71549

General information on the benchmark

Namerandom/OnTreshold/5SAT/v70/
unif-k5-r21.3-v70-c1491-S1416418480-05.SAT.shuffled.cnf
MD5SUM10cdf0d13f9ca6cd8c317abc593ddad7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007997
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses1491
Sum of the clauses size7455
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51491
Number of clauses of size over 50

Solver Data (download as text)

2.69/2.71	c MXC attempting /tmp/evaluation/426552-1177826553/instance-426552-1177826553.cnf
2.69/2.71	c 0 assignments made, starting to guess now
2.69/2.71	c ===================================[MXC]=====================================
2.69/2.71	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
2.69/2.71	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
2.69/2.71	c =============================================================================
2.69/2.71	c |         0 |    1491     7455 |    1000       0       0     nan |  0.000 % |
2.69/2.71	c |       100 |    1491     7455 |    1100     100    1735    17.4 |  0.000 % |
2.69/2.71	c |       250 |    1491     7455 |    1210     250    4219    16.9 |  0.000 % |
2.69/2.71	c |       477 |    1491     7455 |    1331     477    8158    17.1 |  0.000 % |
2.69/2.71	c |       815 |    1491     7455 |    1464     815   13536    16.6 |  0.000 % |
2.69/2.71	c |      1321 |    1491     7455 |    1610    1321   21585    16.3 |  0.000 % |
2.69/2.71	c |      2083 |    1491     7455 |    1771    1277   20471    16.0 |  0.000 % |
2.69/2.71	c |      3223 |    1491     7455 |    1948    1531   23300    15.2 |  0.000 % |
2.69/2.71	c |      4931 |    1491     7455 |    2143    1291   20612    16.0 |  0.000 % |
2.69/2.71	c |      7494 |    1491     7455 |    2357    1710   25121    14.7 |  0.000 % |
2.69/2.71	c |     11340 |    1491     7455 |    2593    2019   29270    14.5 |  0.000 % |
2.69/2.71	c |     17106 |    1491     7455 |    2853    1302   18328    14.1 |  0.000 % |
2.69/2.71	c |     25755 |    1491     7455 |    3138    2817   39344    14.0 |  0.000 % |
2.69/2.71	c |     38731 |    1491     7455 |    3452    1673   22594    13.5 |  0.000 % |
2.69/2.71	c |     58192 |    1491     7455 |    3797    2156   30433    14.1 |  0.000 % |
2.69/2.71	c 2.690s elapsed
2.69/2.71	c restarts: 14
2.69/2.71	c decisions: 82910
2.69/2.71	c propagations: 998644
2.69/2.71	c conflicts: 75195
2.69/2.71	s SATISFIABLE
2.69/2.71	v -62 -41 -15 -8 -10 28 68 -9 -70 -57 -60 -11 -50 -21 -5 6 34 52 59 47 -58 -65 -37 19 13 36 46 40 63 -48 25 23 39 35 -18 -54 -51 -16 4 30 -33 45 31 -22 -32 -17 -55 53 29 -1 12 -7 -24 14 67 -64 -42 2 -38 61 44 -26 49 3 -20 56 27 -69 -66 -43 0

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/node7/watcher-426552-1177826553 -o ROOT/results/node7/solver-426552-1177826553 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/426552-1177826553/mxc /tmp/evaluation/426552-1177826553/instance-426552-1177826553.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.73 0.92 0.97 3/77 14322
/proc/meminfo: memFree=1636208/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=932 CPUtime=0
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 113 0 0 0 0 0 0 0 18 0 1 0 258692965 954368 98 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 233 98 59 122 0 107 0

[startup+0.100358 s]
/proc/loadavg: 0.73 0.92 0.97 3/77 14322
/proc/meminfo: memFree=1636208/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=1200 CPUtime=0.09
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 174 0 0 0 9 0 0 0 18 0 1 0 258692965 1228800 157 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519287 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 300 157 67 122 0 174 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1200

[startup+0.20137 s]
/proc/loadavg: 0.73 0.92 0.97 3/77 14322
/proc/meminfo: memFree=1636208/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=1200 CPUtime=0.19
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 187 0 0 0 19 0 0 0 18 0 1 0 258692965 1228800 170 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134547915 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 300 170 67 122 0 174 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1200

[startup+0.30138 s]
/proc/loadavg: 0.73 0.92 0.97 3/77 14322
/proc/meminfo: memFree=1636208/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=1324 CPUtime=0.29
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 197 0 0 0 29 0 0 0 19 0 1 0 258692965 1355776 180 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134528512 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 331 180 67 122 0 205 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1324

[startup+0.701422 s]
/proc/loadavg: 0.73 0.92 0.97 3/77 14322
/proc/meminfo: memFree=1636208/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=1324 CPUtime=0.69
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 216 0 0 0 69 0 0 0 22 0 1 0 258692965 1355776 199 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519197 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 331 199 67 122 0 205 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1324

[startup+1.50151 s]
/proc/loadavg: 0.73 0.92 0.97 2/78 14323
/proc/meminfo: memFree=1635560/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=1448 CPUtime=1.49
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 248 0 0 0 149 0 0 0 25 0 1 0 258692965 1482752 231 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134534724 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 362 231 67 122 0 236 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1448

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

[startup+1.60152 s]
/proc/loadavg: 0.73 0.92 0.97 2/78 14323
/proc/meminfo: memFree=1635560/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=1448 CPUtime=1.59
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 248 0 0 0 159 0 0 0 25 0 1 0 258692965 1482752 231 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 362 231 67 122 0 236 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 1448

[startup+2.4016 s]
/proc/loadavg: 0.73 0.92 0.97 2/78 14323
/proc/meminfo: memFree=1635304/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=1568 CPUtime=2.39
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 270 0 0 0 239 0 0 0 25 0 1 0 258692965 1605632 253 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519218 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 392 253 67 122 0 266 0
Current children cumulated CPU time (s) 2.39
Current children cumulated vsize (KiB) 1568

[startup+2.60162 s]
/proc/loadavg: 0.73 0.92 0.97 2/78 14323
/proc/meminfo: memFree=1635304/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=1568 CPUtime=2.59
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 272 0 0 0 259 0 0 0 25 0 1 0 258692965 1605632 255 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519302 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 392 255 67 122 0 266 0
Current children cumulated CPU time (s) 2.59
Current children cumulated vsize (KiB) 1568

[startup+2.70163 s]
/proc/loadavg: 0.73 0.92 0.97 2/78 14323
/proc/meminfo: memFree=1635304/2055920 swapFree=4156360/4192956
[pid=14322] ppid=14320 vsize=1568 CPUtime=2.69
/proc/14322/stat : 14322 (mxc) R 14320 14322 13601 0 -1 4194304 275 0 0 0 269 0 0 0 25 0 1 0 258692965 1605632 258 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/14322/statm: 392 258 67 122 0 266 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 1568

Child status: 10
Real time (s): 2.71549
CPU time (s): 2.70159
CPU user time (s): 2.69859
CPU system time (s): 0.002999
CPU usage (%): 99.4879
Max. virtual memory (cumulated for all children) (KiB): 1568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.69859
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 277
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= 9
involuntary context switches= 3

runsolver used 0.004999 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Sun Apr 29 06:02:33 UTC 2007

IDJOB= 426552
IDBENCH= 19833
IDSOLVER= 174
FILE ID= node7/426552-1177826553

PBS_JOBID= 4718266

Free space on /tmp= 66564 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v70/unif-k5-r21.3-v70-c1491-S1416418480-05.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426552-1177826553/mxc /tmp/evaluation/426552-1177826553/instance-426552-1177826553.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-426552-1177826553 -o ROOT/results/node7/solver-426552-1177826553 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/426552-1177826553/mxc /tmp/evaluation/426552-1177826553/instance-426552-1177826553.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  10cdf0d13f9ca6cd8c317abc593ddad7

RANDOM SEED= 493862412

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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		: 3000.231
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		: 3000.231
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:       1636616 kB
Buffers:         43016 kB
Cached:         302396 kB
SwapCached:      17164 kB
Active:         227808 kB
Inactive:       142068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1636616 kB
SwapTotal:     4192956 kB
SwapFree:      4156360 kB
Dirty:             756 kB
Writeback:           0 kB
Mapped:          30040 kB
Slab:            34844 kB
Committed_AS:  8964620 kB
PageTables:       1860 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= 66564 MiB

End job on node7 on Sun Apr 29 06:02:36 UTC 2007