Trace number 367657

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 2007-02-08UNSAT 37.8302 37.8543

General information on the benchmark

Nameindustrial/jarvisalo/
eq.atree.braun.8.unsat.cnf
MD5SUM35a8bbabf9cb954216ad71150cb47290
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark24.2383
Satisfiable
(Un)Satisfiability was proved
Number of variables684
Number of clauses2300
Sum of the clauses size5992
Maximum clause length15
Minimum clause length1
Number of clauses of size 13
Number of clauses of size 2978
Number of clauses of size 31284
Number of clauses of size 416
Number of clauses of size 512
Number of clauses of size over 57

Solver Data (download as text)

37.78/37.85	c MXC attempting /tmp/evaluation/367657-1177550968/instance-367657-1177550968.cnf
37.78/37.85	c 3 assignments made, starting to guess now
37.78/37.85	c ===================================[MXC]=====================================
37.78/37.85	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
37.78/37.85	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
37.78/37.85	c =============================================================================
37.78/37.85	c |         0 |    1319     4030 |    1000       0       0     nan |  0.439 % |
37.78/37.85	c |       100 |    1319     4030 |    1100      96    1017    10.6 |  0.439 % |
37.78/37.85	c |       252 |    1319     4030 |    1210     236    3862    16.4 |  0.439 % |
37.78/37.85	c |       478 |    1319     4030 |    1331     458    7478    16.3 |  0.439 % |
37.78/37.85	c |       817 |    1319     4030 |    1464     794   12159    15.3 |  0.439 % |
37.78/37.85	c |      1324 |    1319     4030 |    1610    1299   18865    14.5 |  0.439 % |
37.78/37.85	c |      2083 |    1318     4026 |    1771    1246   19230    15.4 |  0.585 % |
37.78/37.85	c |      3222 |    1318     4026 |    1948    1498   17097    11.4 |  0.585 % |
37.78/37.85	c |      4930 |    1318     4026 |    2143    1237   26495    21.4 |  0.585 % |
37.78/37.85	c |      7493 |    1318     4026 |    2357    1642   42197    25.7 |  0.585 % |
37.78/37.85	c |     11337 |    1314     4013 |    2593    1723   42676    24.8 |  0.731 % |
37.78/37.85	c |     17104 |    1314     4013 |    2853    2300   28741    12.5 |  0.731 % |
37.78/37.85	c |     25754 |    1309     3996 |    3138    2410   61295    25.4 |  1.023 % |
37.78/37.85	c |     38729 |    1309     3996 |    3452    2820   62796    22.3 |  1.023 % |
37.78/37.85	c |     58191 |    1309     3996 |    3797    3316   62188    18.8 |  1.023 % |
37.78/37.85	c |     87385 |    1295     3954 |    4177    2176   53259    24.5 |  2.047 % |
37.78/37.85	c |    131177 |    1295     3954 |    4594    2130   35025    16.4 |  2.047 % |
37.78/37.85	c |    196862 |    1295     3954 |    5054    3543   59126    16.7 |  2.047 % |
37.78/37.85	c |    295389 |    1291     3941 |    5559    3658   89678    24.5 |  2.193 % |
37.78/37.85	c 37.830s elapsed
37.78/37.85	c restarts: 18
37.78/37.85	c decisions: 442604
37.78/37.85	c propagations: 54181827
37.78/37.85	c conflicts: 381011
37.78/37.85	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node18/watcher-367657-1177550968 -o ROOT/results/node18/solver-367657-1177550968 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/367657-1177550968/mxc /tmp/evaluation/367657-1177550968/instance-367657-1177550968.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: 0.96 1.00 0.93 3/77 997
/proc/meminfo: memFree=1545928/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=1064 CPUtime=0
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 203014166 1089536 120 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531238 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 266 120 59 122 0 140 0

[startup+0.0669051 s]
/proc/loadavg: 0.96 1.00 0.93 3/77 997
/proc/meminfo: memFree=1545928/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=1196 CPUtime=0.06
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 161 0 0 0 6 0 0 0 18 0 1 0 203014166 1224704 146 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 299 146 59 122 0 173 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1196

[startup+0.101908 s]
/proc/loadavg: 0.96 1.00 0.93 3/77 997
/proc/meminfo: memFree=1545928/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=1204 CPUtime=0.1
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 183 0 0 0 10 0 0 0 18 0 1 0 203014166 1232896 166 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 301 166 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.301927 s]
/proc/loadavg: 0.96 1.00 0.93 3/77 997
/proc/meminfo: memFree=1545928/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=1328 CPUtime=0.3
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 211 0 0 0 30 0 0 0 19 0 1 0 203014166 1359872 194 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 332 194 67 122 0 206 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1328

[startup+0.701966 s]
/proc/loadavg: 0.96 1.00 0.93 3/77 997
/proc/meminfo: memFree=1545928/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=1460 CPUtime=0.7
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 251 0 0 0 70 0 0 0 22 0 1 0 203014166 1495040 234 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 365 234 67 122 0 239 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1460

[startup+1.50104 s]
/proc/loadavg: 0.96 1.00 0.93 2/78 998
/proc/meminfo: memFree=1545216/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=1712 CPUtime=1.49
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 293 0 0 0 149 0 0 0 25 0 1 0 203014166 1753088 276 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519218 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 428 276 67 122 0 302 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1712

[startup+3.1012 s]
/proc/loadavg: 0.96 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544960/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=1712 CPUtime=3.09
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 303 0 0 0 309 0 0 0 25 0 1 0 203014166 1753088 286 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530055 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 428 286 67 122 0 302 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1712

[startup+6.30251 s]
/proc/loadavg: 0.96 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544640/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=1964 CPUtime=6.29
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 361 0 0 0 629 0 0 0 25 0 1 0 203014166 2011136 344 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519605 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 491 344 67 122 0 365 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1964

[startup+12.7011 s]
/proc/loadavg: 0.96 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544512/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=1964 CPUtime=12.69
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 382 0 0 0 1269 0 0 0 25 0 1 0 203014166 2011136 365 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519587 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 491 365 67 122 0 365 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1964

[startup+25.5014 s]
/proc/loadavg: 0.97 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544128/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=2452 CPUtime=25.49
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 483 0 0 0 2549 0 0 0 25 0 1 0 203014166 2510848 466 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519191 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 613 466 67 122 0 487 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 2452

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

[startup+31.906 s]
/proc/loadavg: 0.97 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544064/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=2452 CPUtime=31.89
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 493 0 0 0 3189 0 0 0 25 0 1 0 203014166 2510848 476 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 613 476 67 122 0 487 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 2452

[startup+35.1013 s]
/proc/loadavg: 0.97 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544064/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=2452 CPUtime=35.09
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 497 0 0 0 3509 0 0 0 25 0 1 0 203014166 2510848 480 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 613 480 67 122 0 487 0
Current children cumulated CPU time (s) 35.09
Current children cumulated vsize (KiB) 2452

[startup+36.7014 s]
/proc/loadavg: 0.97 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544064/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=2452 CPUtime=36.68
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 501 0 0 0 3668 0 0 0 25 0 1 0 203014166 2510848 484 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519635 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 613 484 67 122 0 487 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 2452

[startup+37.5015 s]
/proc/loadavg: 0.97 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544000/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=2452 CPUtime=37.48
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 501 0 0 0 3748 0 0 0 25 0 1 0 203014166 2510848 484 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134529873 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 613 484 67 122 0 487 0
Current children cumulated CPU time (s) 37.48
Current children cumulated vsize (KiB) 2452

[startup+37.7015 s]
/proc/loadavg: 0.97 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544000/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=2452 CPUtime=37.68
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 501 0 0 0 3768 0 0 0 25 0 1 0 203014166 2510848 484 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519619 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 613 484 67 122 0 487 0
Current children cumulated CPU time (s) 37.68
Current children cumulated vsize (KiB) 2452

[startup+37.8015 s]
/proc/loadavg: 0.97 1.00 0.93 2/78 998
/proc/meminfo: memFree=1544000/2055920 swapFree=4147180/4192956
[pid=997] ppid=995 vsize=2452 CPUtime=37.78
/proc/997/stat : 997 (mxc) R 995 997 371 0 -1 4194304 501 0 0 0 3778 0 0 0 25 0 1 0 203014166 2510848 484 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519967 0 0 4096 0 0 0 0 17 1 0 0
/proc/997/statm: 613 484 67 122 0 487 0
Current children cumulated CPU time (s) 37.78
Current children cumulated vsize (KiB) 2452

Child status: 20
Real time (s): 37.8543
CPU time (s): 37.8302
CPU user time (s): 37.8272
CPU system time (s): 0.002999
CPU usage (%): 99.9365
Max. virtual memory (cumulated for all children) (KiB): 2452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 37.8272
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= 502
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= 33

runsolver used 0.035994 second user time and 0.082987 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Thu Apr 26 01:29:28 UTC 2007

IDJOB= 367657
IDBENCH= 20473
IDSOLVER= 174
FILE ID= node18/367657-1177550968

PBS_JOBID= 4696624

Free space on /tmp= 66490 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/jarvisalo/eq.atree.braun.8.unsat.cnf
COMMAND LINE= /tmp/evaluation/367657-1177550968/mxc /tmp/evaluation/367657-1177550968/instance-367657-1177550968.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-367657-1177550968 -o ROOT/results/node18/solver-367657-1177550968 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/367657-1177550968/mxc /tmp/evaluation/367657-1177550968/instance-367657-1177550968.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  35a8bbabf9cb954216ad71150cb47290

RANDOM SEED= 730729158

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.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		: 3000.234
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		: 3000.234
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:       1546336 kB
Buffers:         46216 kB
Cached:         376944 kB
SwapCached:      14828 kB
Active:         213836 kB
Inactive:       233496 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1546336 kB
SwapTotal:     4192956 kB
SwapFree:      4147180 kB
Dirty:             748 kB
Writeback:           0 kB
Mapped:          30872 kB
Slab:            47780 kB
Committed_AS:  5461976 kB
PageTables:       1780 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= 66490 MiB

End job on node18 on Thu Apr 26 01:30:06 UTC 2007