Trace number 370035

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 8.36873 8.38597

General information on the benchmark

Namecrafted/spence/
medium/s65-100.cnf
MD5SUMc783ce32e47f2d2dd661851cca52c3a7
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.83542
Satisfiable
(Un)Satisfiability was proved
Number of variables65
Number of clauses140
Sum of the clauses size420
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3140
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

8.29/8.38	c MXC attempting /tmp/evaluation/370035-1177550835/instance-370035-1177550835.cnf
8.29/8.38	c 0 assignments made, starting to guess now
8.29/8.38	c ===================================[MXC]=====================================
8.29/8.38	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
8.29/8.38	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
8.29/8.38	c =============================================================================
8.29/8.38	c |         0 |     140      420 |    1000       0       0     nan |  0.000 % |
8.29/8.38	c |       101 |     140      420 |    1100     101    1245    12.3 |  0.000 % |
8.29/8.38	c |       253 |     140      420 |    1210     253    3414    13.5 |  0.000 % |
8.29/8.38	c |       478 |     140      420 |    1331     478    6580    13.8 |  0.000 % |
8.29/8.38	c |       815 |     140      420 |    1464     815   11113    13.6 |  0.000 % |
8.29/8.38	c |      1321 |     140      420 |    1610    1321   17678    13.4 |  0.000 % |
8.29/8.38	c |      2082 |     140      420 |    1771    1276   16584    13.0 |  0.000 % |
8.29/8.38	c |      3224 |     140      420 |    1948    1532   20575    13.4 |  0.000 % |
8.29/8.38	c |      4932 |     140      420 |    2143    1291   14435    11.2 |  0.000 % |
8.29/8.38	c |      7494 |     140      420 |    2357    1709   20824    12.2 |  0.000 % |
8.29/8.38	c |     11338 |     140      420 |    2593    2016   23316    11.6 |  0.000 % |
8.29/8.38	c |     17105 |     140      420 |    2853    2595   26369    10.2 |  0.000 % |
8.29/8.38	c |     25755 |     140      420 |    3138    2687   26506     9.9 |  0.000 % |
8.29/8.38	c |     38730 |     140      420 |    3452    3108   30703     9.9 |  0.000 % |
8.29/8.38	c |     58191 |     140      420 |    3797    1861   19186    10.3 |  0.000 % |
8.29/8.38	c |     87384 |     140      420 |    4177    2584   28255    10.9 |  0.000 % |
8.29/8.38	c |    131173 |     140      420 |    4594    2523   25515    10.1 |  0.000 % |
8.29/8.38	c |    196857 |     140      420 |    5054    3893   32435     8.3 |  0.000 % |
8.29/8.38	c 8.360s elapsed
8.29/8.38	c restarts: 17
8.29/8.38	c decisions: 326063
8.29/8.38	c propagations: 5125902
8.29/8.38	c conflicts: 265990
8.29/8.38	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/node3/watcher-370035-1177550835 -o ROOT/results/node3/solver-370035-1177550835 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370035-1177550835/mxc /tmp/evaluation/370035-1177550835/instance-370035-1177550835.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: 1.00 1.00 0.92 3/77 16982
/proc/meminfo: memFree=1629856/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=932 CPUtime=0
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 95 0 0 0 0 0 0 0 18 0 1 0 231121244 954368 80 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 233 81 59 122 0 107 0

[startup+0.080774 s]
/proc/loadavg: 1.00 1.00 0.92 3/77 16982
/proc/meminfo: memFree=1629856/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1072 CPUtime=0.07
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 153 0 0 0 7 0 0 0 18 0 1 0 231121244 1097728 136 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134534105 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 268 136 67 122 0 142 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1072

[startup+0.102778 s]
/proc/loadavg: 1.00 1.00 0.92 3/77 16982
/proc/meminfo: memFree=1629856/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1072 CPUtime=0.1
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 156 0 0 0 10 0 0 0 18 0 1 0 231121244 1097728 139 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134529824 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 268 139 67 122 0 142 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1072

[startup+0.301811 s]
/proc/loadavg: 1.00 1.00 0.92 3/77 16982
/proc/meminfo: memFree=1629856/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1196 CPUtime=0.3
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 179 0 0 0 30 0 0 0 19 0 1 0 231121244 1224704 162 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134534724 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 299 162 67 122 0 173 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1196

[startup+0.701876 s]
/proc/loadavg: 1.00 1.00 0.92 3/77 16982
/proc/meminfo: memFree=1629856/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1328 CPUtime=0.7
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 202 0 0 0 70 0 0 0 22 0 1 0 231121244 1359872 185 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 332 185 67 122 0 206 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1328

[startup+1.502 s]
/proc/loadavg: 1.00 1.00 0.92 2/78 16983
/proc/meminfo: memFree=1629336/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1328 CPUtime=1.5
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 219 0 0 0 150 0 0 0 25 0 1 0 231121244 1359872 202 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 332 202 67 122 0 206 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1328

[startup+3.10127 s]
/proc/loadavg: 1.00 1.00 0.92 2/78 16983
/proc/meminfo: memFree=1629144/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1568 CPUtime=3.09
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 267 0 0 0 309 0 0 0 25 0 1 0 231121244 1605632 250 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134617009 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 392 250 67 122 0 266 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1568

[startup+6.30178 s]
/proc/loadavg: 1.00 1.00 0.92 2/78 16983
/proc/meminfo: memFree=1628824/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1684 CPUtime=6.29
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 306 0 0 0 629 0 0 0 25 0 1 0 231121244 1724416 289 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 421 289 67 122 0 295 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1684

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

[startup+7.10191 s]
/proc/loadavg: 1.00 1.00 0.92 2/78 16983
/proc/meminfo: memFree=1628760/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1684 CPUtime=7.09
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 310 0 0 0 709 0 0 0 25 0 1 0 231121244 1724416 293 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519990 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 421 293 67 122 0 295 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 1684

[startup+7.90104 s]
/proc/loadavg: 1.00 1.00 0.92 2/78 16983
/proc/meminfo: memFree=1628760/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1796 CPUtime=7.89
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 316 0 0 0 789 0 0 0 25 0 1 0 231121244 1839104 299 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519240 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 449 299 67 122 0 323 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 1796

[startup+8.30111 s]
/proc/loadavg: 1.00 1.00 0.92 2/78 16983
/proc/meminfo: memFree=1628760/2055920 swapFree=4138796/4192956
[pid=16982] ppid=16980 vsize=1796 CPUtime=8.29
/proc/16982/stat : 16982 (mxc) R 16980 16982 15738 0 -1 4194304 320 0 0 0 829 0 0 0 25 0 1 0 231121244 1839104 303 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134517410 0 0 4096 0 0 0 0 17 1 0 0
/proc/16982/statm: 449 303 67 122 0 323 0
Current children cumulated CPU time (s) 8.29
Current children cumulated vsize (KiB) 1796

Child status: 20
Real time (s): 8.38597
CPU time (s): 8.36873
CPU user time (s): 8.36673
CPU system time (s): 0.001999
CPU usage (%): 99.7944
Max. virtual memory (cumulated for all children) (KiB): 1796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.36673
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 321
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= 5

runsolver used 0.013997 second user time and 0.017997 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Thu Apr 26 01:27:15 UTC 2007

IDJOB= 370035
IDBENCH= 20441
IDSOLVER= 181
FILE ID= node3/370035-1177550835

PBS_JOBID= 4696622

Free space on /tmp= 66420 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s65-100.cnf
COMMAND LINE= /tmp/evaluation/370035-1177550835/mxc /tmp/evaluation/370035-1177550835/instance-370035-1177550835.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-370035-1177550835 -o ROOT/results/node3/solver-370035-1177550835 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370035-1177550835/mxc /tmp/evaluation/370035-1177550835/instance-370035-1177550835.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  c783ce32e47f2d2dd661851cca52c3a7

RANDOM SEED= 188619174

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.270
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		: 3000.270
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:       1630328 kB
Buffers:         44632 kB
Cached:         288800 kB
SwapCached:      17720 kB
Active:         171348 kB
Inactive:       210392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1630328 kB
SwapTotal:     4192956 kB
SwapFree:      4138796 kB
Dirty:             600 kB
Writeback:           0 kB
Mapped:          54308 kB
Slab:            29384 kB
Committed_AS:  6172684 kB
PageTables:       1848 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= 66420 MiB

End job on node3 on Thu Apr 26 01:27:24 UTC 2007