Trace number 313744

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
Mmisat 2007-02-08? (MO) 213.266 213.692

General information on the benchmark

Nameindustrial/anbulagan/
hard-unsat/dated-5-15-u.cnf
MD5SUMc716daea92d5e29b94f85a19b52859ac
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark863.868
Satisfiable
(Un)Satisfiability was proved
Number of variables151952
Number of clauses697321
Sum of the clauses size1601192
Maximum clause length10
Minimum clause length1
Number of clauses of size 112754
Number of clauses of size 2551183
Number of clauses of size 3104744
Number of clauses of size 43180
Number of clauses of size 512720
Number of clauses of size over 512740

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node52/watcher-313744-1176890338 -o ROOT/results/node52/solver-313744-1176890338 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/313744-1176890338/mmisat /tmp/evaluation/313744-1176890338/instance-313744-1176890338.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): 2400 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: 0.65 0.90 0.97 3/64 1369
/proc/meminfo: memFree=1471700/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=2556 CPUtime=0
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 476 0 0 0 0 0 0 0 18 0 1 0 43878937 2617344 459 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 639 465 80 214 0 421 0

[startup+0.075765 s]
/proc/loadavg: 0.65 0.90 0.97 3/64 1369
/proc/meminfo: memFree=1471700/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=24448 CPUtime=0.07
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 5954 0 0 0 4 3 0 0 18 0 1 0 43878937 25034752 5937 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 6112 5941 80 214 0 5894 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 24448

[startup+0.101765 s]
/proc/loadavg: 0.65 0.90 0.97 3/64 1369
/proc/meminfo: memFree=1471700/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=31132 CPUtime=0.09
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 7656 0 0 0 5 4 0 0 18 0 1 0 43878937 31879168 7639 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 7783 7640 80 214 0 7565 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 31132

[startup+0.301778 s]
/proc/loadavg: 0.65 0.90 0.97 3/64 1369
/proc/meminfo: memFree=1471700/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=73416 CPUtime=0.29
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 18214 0 0 0 22 7 0 0 19 0 1 0 43878937 75177984 18197 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 18354 18197 80 214 0 18136 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 73416

[startup+0.701805 s]
/proc/loadavg: 0.65 0.90 0.97 3/64 1369
/proc/meminfo: memFree=1471700/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=134580 CPUtime=0.69
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 33505 0 0 0 57 12 0 0 22 0 1 0 43878937 137809920 33488 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 33645 33488 80 214 0 33427 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 134580

[startup+1.50186 s]
/proc/loadavg: 0.65 0.90 0.97 2/65 1370
/proc/meminfo: memFree=1301324/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=222152 CPUtime=1.49
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 55398 0 0 0 128 21 0 0 25 0 1 0 43878937 227483648 55381 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 55538 55381 80 214 0 55320 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 222152

[startup+3.10197 s]
/proc/loadavg: 0.65 0.90 0.97 2/65 1370
/proc/meminfo: memFree=1198476/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=344652 CPUtime=3.09
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 86037 0 0 0 275 34 0 0 25 0 1 0 43878937 352923648 86020 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 86163 86020 80 214 0 85945 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 344652

[startup+6.30119 s]
/proc/loadavg: 0.68 0.90 0.97 2/65 1370
/proc/meminfo: memFree=954188/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=553220 CPUtime=6.28
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 138179 0 0 0 574 54 0 0 25 0 1 0 43878937 566497280 138162 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 0 0 0
/proc/1369/statm: 138305 138162 80 214 0 138087 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 553220

[startup+12.7016 s]
/proc/loadavg: 0.71 0.91 0.97 2/65 1370
/proc/meminfo: memFree=785492/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=697112 CPUtime=12.66
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 174138 0 0 0 1201 65 0 0 25 0 1 0 43878937 713842688 174121 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 174278 174121 80 214 0 174060 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 697112

[startup+25.5015 s]
/proc/loadavg: 0.77 0.91 0.97 2/65 1370
/proc/meminfo: memFree=623444/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=850360 CPUtime=25.46
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 212464 0 0 0 2468 78 0 0 25 0 1 0 43878937 870768640 212447 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 212590 212447 80 214 0 212372 0
Current children cumulated CPU time (s) 25.46
Current children cumulated vsize (KiB) 850360

[startup+51.1012 s]
/proc/loadavg: 0.85 0.92 0.97 2/65 1370
/proc/meminfo: memFree=422676/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=1052076 CPUtime=51.04
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 262879 0 0 0 5010 94 0 0 25 0 1 0 43878937 1077325824 262862 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 263019 262862 80 214 0 262801 0
Current children cumulated CPU time (s) 51.04
Current children cumulated vsize (KiB) 1052076

[startup+102.306 s]
/proc/loadavg: 0.93 0.93 0.97 2/65 1370
/proc/meminfo: memFree=116500/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=1354064 CPUtime=102.23
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 338390 0 0 0 10105 118 0 0 25 0 1 0 43878937 1386561536 338373 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 338516 338373 80 214 0 338298 0
Current children cumulated CPU time (s) 102.23
Current children cumulated vsize (KiB) 1354064

[startup+162.302 s]
/proc/loadavg: 0.97 0.94 0.97 2/71 1538
/proc/meminfo: memFree=15500/2055920 swapFree=4182044/4192956
[pid=1369] ppid=1367 vsize=1636664 CPUtime=162.11
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 409026 0 0 0 16065 146 0 0 25 0 1 0 43878937 1675943936 409009 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 0 0 0
/proc/1369/statm: 409166 409009 80 214 0 408948 0
Current children cumulated CPU time (s) 162.11
Current children cumulated vsize (KiB) 1636664



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+213.405 s]
/proc/loadavg: 0.99 0.94 0.97 2/65 1568
/proc/meminfo: memFree=15316/2055920 swapFree=4182956/4192956
[pid=1369] ppid=1367 vsize=1843228 CPUtime=212.97
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4194304 460667 0 0 0 21134 163 0 0 25 0 1 0 43878937 1887465472 460650 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 460807 460650 80 214 0 460589 0
Current children cumulated CPU time (s) 212.97
Current children cumulated vsize (KiB) 1843228

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+213.601 s]
/proc/loadavg: 0.99 0.94 0.97 2/65 1568
/proc/meminfo: memFree=15316/2055920 swapFree=4182956/4192956
[pid=1369] ppid=1367 vsize=0 CPUtime=213.16
/proc/1369/stat : 1369 (mmisat) R 1367 1369 1312 0 -1 4195332 460667 0 0 0 21134 182 0 0 25 0 1 0 43878937 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/1369/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 213.16
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 213.692
CPU time (s): 213.266
CPU user time (s): 211.35
CPU system time (s): 1.91571
CPU usage (%): 99.8004
Max. virtual memory (cumulated for all children) (KiB): 1843228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 211.35
system time used= 1.91571
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 460667
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= 6
involuntary context switches= 991

runsolver used 0.152976 second user time and 0.513921 second system time

The end



Launcher Data (download as text)




Begin job on node52 on Wed Apr 18 09:58:59 UTC 2007

IDJOB= 313744
IDBENCH= 20374
IDSOLVER= 108
FILE ID= node52/313744-1176890338

PBS_JOBID= 4595161

Free space on /tmp= 66323 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-unsat/dated-5-15-u.cnf
COMMAND LINE= /tmp/evaluation/313744-1176890338/mmisat /tmp/evaluation/313744-1176890338/instance-313744-1176890338.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-313744-1176890338 -o ROOT/results/node52/solver-313744-1176890338 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/313744-1176890338/mmisat /tmp/evaluation/313744-1176890338/instance-313744-1176890338.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  c716daea92d5e29b94f85a19b52859ac

RANDOM SEED= 481294957

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node52.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		: 3000.236
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		: 3000.236
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:       1472172 kB
Buffers:         18940 kB
Cached:         514328 kB
SwapCached:       4612 kB
Active:         229400 kB
Inactive:       313904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1472172 kB
SwapTotal:     4192956 kB
SwapFree:      4182044 kB
Dirty:           13400 kB
Writeback:           0 kB
Mapped:          15164 kB
Slab:            26376 kB
Committed_AS:  1542576 kB
PageTables:       1484 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= 66323 MiB

End job on node52 on Wed Apr 18 10:02:34 UTC 2007