Trace number 313986

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
minimarch 2007-02-08UNSAT 2.18567 2.18717

General information on the benchmark

Nameindustrial/anbulagan/
hard-unsat/dated-10-13-u.cnf
MD5SUMc10a1a201bfe26fc1d15892100d7fabd
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables180608
Number of clauses815261
Sum of the clauses size1862226
Maximum clause length10
Minimum clause length1
Number of clauses of size 115232
Number of clauses of size 2655753
Number of clauses of size 3110056
Number of clauses of size 43800
Number of clauses of size 515200
Number of clauses of size over 515220

Solver Data (download as text)

0.00/0.00	This is MiniMarch, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  180608                                               |
0.00/0.00	|  Number of clauses:    815261                                               |
2.10/2.17	|  Parsing time:         2.07         s                                       |
2.10/2.17	Solved by unit propagation
2.10/2.17	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node50/watcher-313986-1176894471 -o ROOT/results/node50/solver-313986-1176894471 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/313986-1176894471/minimarch /tmp/evaluation/313986-1176894471/instance-313986-1176894471.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: 0.92 0.98 0.99 3/64 8800
/proc/meminfo: memFree=1708728/2055920 swapFree=4183788/4192956
[pid=8800] ppid=8798 vsize=2340 CPUtime=0
/proc/8800/stat : 8800 (minimarch) R 8798 8800 8172 0 -1 4194304 479 0 0 0 0 0 0 0 18 0 1 0 44292294 2396160 463 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134553814 0 0 4096 3 0 0 0 17 1 0 0
/proc/8800/statm: 585 463 51 132 0 450 0

[startup+0.0528529 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 8800
/proc/meminfo: memFree=1708728/2055920 swapFree=4183788/4192956
[pid=8800] ppid=8798 vsize=7324 CPUtime=0.04
/proc/8800/stat : 8800 (minimarch) R 8798 8800 8172 0 -1 4194304 1613 0 0 0 3 1 0 0 18 0 1 0 44292294 7499776 1597 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/8800/statm: 1831 1597 51 132 0 1696 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 7324

[startup+0.101856 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 8800
/proc/meminfo: memFree=1708728/2055920 swapFree=4183788/4192956
[pid=8800] ppid=8798 vsize=12988 CPUtime=0.09
/proc/8800/stat : 8800 (minimarch) R 8798 8800 8172 0 -1 4194304 2976 0 0 0 8 1 0 0 18 0 1 0 44292294 13299712 2960 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/8800/statm: 3247 2960 51 132 0 3112 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12988

[startup+0.301872 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 8800
/proc/meminfo: memFree=1708728/2055920 swapFree=4183788/4192956
[pid=8800] ppid=8798 vsize=38224 CPUtime=0.29
/proc/8800/stat : 8800 (minimarch) R 8798 8800 8172 0 -1 4194304 8093 0 0 0 25 4 0 0 19 0 1 0 44292294 39141376 8077 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/8800/statm: 9556 8077 51 132 0 9421 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 38224

[startup+0.701908 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 8800
/proc/meminfo: memFree=1708728/2055920 swapFree=4183788/4192956
[pid=8800] ppid=8798 vsize=57104 CPUtime=0.69
/proc/8800/stat : 8800 (minimarch) R 8798 8800 8172 0 -1 4194304 12661 0 0 0 63 6 0 0 22 0 1 0 44292294 58474496 12645 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/8800/statm: 14276 12646 51 132 0 14141 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 57104

[startup+1.50198 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 8801
/proc/meminfo: memFree=1643312/2055920 swapFree=4183788/4192956
[pid=8800] ppid=8798 vsize=71060 CPUtime=1.49
/proc/8800/stat : 8800 (minimarch) R 8798 8800 8172 0 -1 4194304 16374 0 0 0 140 9 0 0 25 0 1 0 44292294 72765440 16358 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134523002 0 0 4096 3 0 0 0 17 1 0 0
/proc/8800/statm: 17765 16358 51 132 0 17630 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 71060

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

[startup+1.90301 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 8801
/proc/meminfo: memFree=1643312/2055920 swapFree=4183788/4192956
[pid=8800] ppid=8798 vsize=71060 CPUtime=1.89
/proc/8800/stat : 8800 (minimarch) R 8798 8800 8172 0 -1 4194304 16374 0 0 0 180 9 0 0 25 0 1 0 44292294 72765440 16358 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134523051 0 0 4096 3 0 0 0 17 1 0 0
/proc/8800/statm: 17765 16358 51 132 0 17630 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 71060

[startup+2.10203 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 8801
/proc/meminfo: memFree=1642928/2055920 swapFree=4183788/4192956
[pid=8800] ppid=8798 vsize=71060 CPUtime=2.1
/proc/8800/stat : 8800 (minimarch) R 8798 8800 8172 0 -1 4194304 16374 0 0 0 200 10 0 0 25 0 1 0 44292294 72765440 16358 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134523026 0 0 4096 3 0 0 0 17 1 0 0
/proc/8800/statm: 17765 16358 51 132 0 17630 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 71060

Child status: 20
Real time (s): 2.18717
CPU time (s): 2.18567
CPU user time (s): 2.07268
CPU system time (s): 0.112982
CPU usage (%): 99.931
Max. virtual memory (cumulated for all children) (KiB): 71060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.07268
system time used= 0.112982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16392
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= 6

runsolver used 0.004999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Wed Apr 18 11:07:51 UTC 2007

IDJOB= 313986
IDBENCH= 20380
IDSOLVER= 110
FILE ID= node50/313986-1176894471

PBS_JOBID= 4595160

Free space on /tmp= 66492 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-unsat/dated-10-13-u.cnf
COMMAND LINE= /tmp/evaluation/313986-1176894471/minimarch /tmp/evaluation/313986-1176894471/instance-313986-1176894471.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-313986-1176894471 -o ROOT/results/node50/solver-313986-1176894471 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/313986-1176894471/minimarch /tmp/evaluation/313986-1176894471/instance-313986-1176894471.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  c10a1a201bfe26fc1d15892100d7fabd

RANDOM SEED= 403468416

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node50.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		: 3000.232
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		: 3000.232
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:       1709136 kB
Buffers:          8096 kB
Cached:         265772 kB
SwapCached:       2960 kB
Active:          61336 kB
Inactive:       223260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1709136 kB
SwapTotal:     4192956 kB
SwapFree:      4183788 kB
Dirty:           16560 kB
Writeback:           0 kB
Mapped:          16704 kB
Slab:            48176 kB
Committed_AS:  1011584 kB
PageTables:       1460 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= 66492 MiB

End job on node50 on Wed Apr 18 11:07:53 UTC 2007