Trace number 312986

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 2007-02-08Wrong UNSAT 3.64644 3.64928

General information on the benchmark

Nameindustrial/anbulagan/
medium-sat/total-5-17-s.cnf
MD5SUMf18bf849f2b9def7e7425f3fb13fa10f
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark21.5257
Satisfiable
(Un)Satisfiability was proved
Number of variables265408
Number of clauses1248556
Sum of the clauses size2888786
Maximum clause length10
Minimum clause length1
Number of clauses of size 122117
Number of clauses of size 2961748
Number of clauses of size 3214991
Number of clauses of size 45520
Number of clauses of size 522080
Number of clauses of size over 522100

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:  265408                                               |
0.00/0.00	|  Number of clauses:    1248556                                              |
3.59/3.63	|  Parsing time:         3.49         s                                       |
3.59/3.63	Solved by unit propagation
3.59/3.63	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/node30/watcher-312986-1176871653 -o ROOT/results/node30/solver-312986-1176871653 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/312986-1176871653/minimarch /tmp/evaluation/312986-1176871653/instance-312986-1176871653.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: 0.97 0.96 0.98 3/77 16970
/proc/meminfo: memFree=1744904/2055920 swapFree=4157140/4192956
[pid=16970] ppid=16968 vsize=2340 CPUtime=0
/proc/16970/stat : 16970 (minimarch) R 16968 16970 15557 0 -1 4194304 478 0 0 0 0 0 0 0 18 0 1 0 135081035 2396160 462 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134526710 0 0 4096 3 0 0 0 17 1 0 0
/proc/16970/statm: 585 463 51 132 0 450 0

[startup+0.0170769 s]
/proc/loadavg: 0.97 0.96 0.98 3/77 16970
/proc/meminfo: memFree=1744904/2055920 swapFree=4157140/4192956
[pid=16970] ppid=16968 vsize=5356 CPUtime=0
/proc/16970/stat : 16970 (minimarch) R 16968 16970 15557 0 -1 4194304 1074 0 0 0 0 0 0 0 18 0 1 0 135081035 5484544 1058 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134708937 0 0 4096 3 0 0 0 17 1 0 0
/proc/16970/statm: 1339 1058 51 132 0 1204 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101083 s]
/proc/loadavg: 0.97 0.96 0.98 3/77 16970
/proc/meminfo: memFree=1744904/2055920 swapFree=4157140/4192956
[pid=16970] ppid=16968 vsize=11032 CPUtime=0.09
/proc/16970/stat : 16970 (minimarch) R 16968 16970 15557 0 -1 4194304 2534 0 0 0 8 1 0 0 18 0 1 0 135081035 11296768 2518 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134526723 0 0 4096 3 0 0 0 17 1 0 0
/proc/16970/statm: 2758 2518 51 132 0 2623 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11032

[startup+0.301096 s]
/proc/loadavg: 0.97 0.96 0.98 3/77 16970
/proc/meminfo: memFree=1744904/2055920 swapFree=4157140/4192956
[pid=16970] ppid=16968 vsize=46680 CPUtime=0.29
/proc/16970/stat : 16970 (minimarch) R 16968 16970 15557 0 -1 4194304 9428 0 0 0 25 4 0 0 19 0 1 0 135081035 47800320 9412 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134553765 0 0 4096 3 0 0 0 17 1 0 0
/proc/16970/statm: 11670 9413 51 132 0 11535 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 46680

[startup+0.701119 s]
/proc/loadavg: 0.97 0.96 0.98 3/77 16970
/proc/meminfo: memFree=1744904/2055920 swapFree=4157140/4192956
[pid=16970] ppid=16968 vsize=66896 CPUtime=0.69
/proc/16970/stat : 16970 (minimarch) R 16968 16970 15557 0 -1 4194304 14261 0 0 0 62 7 0 0 23 0 1 0 135081035 68501504 14245 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/16970/statm: 16724 14246 51 132 0 16589 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 66896

[startup+1.50117 s]
/proc/loadavg: 0.97 0.96 0.98 2/78 16971
/proc/meminfo: memFree=1675392/2055920 swapFree=4157140/4192956
[pid=16970] ppid=16968 vsize=104088 CPUtime=1.49
/proc/16970/stat : 16970 (minimarch) R 16968 16970 15557 0 -1 4194304 23752 0 0 0 136 13 0 0 25 0 1 0 135081035 106586112 23736 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/16970/statm: 26022 23736 51 132 0 25887 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 104088

[startup+3.10127 s]
/proc/loadavg: 0.97 0.96 0.98 2/78 16971
/proc/meminfo: memFree=1646848/2055920 swapFree=4157140/4192956
[pid=16970] ppid=16968 vsize=106596 CPUtime=3.09
/proc/16970/stat : 16970 (minimarch) R 16968 16970 15557 0 -1 4194304 24489 0 0 0 295 14 0 0 25 0 1 0 135081035 109154304 24473 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134522965 0 0 4096 3 0 0 0 17 1 0 0
/proc/16970/statm: 26649 24473 51 132 0 26514 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 106596

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

[startup+3.50129 s]
/proc/loadavg: 0.97 0.96 0.98 2/78 16971
/proc/meminfo: memFree=1646848/2055920 swapFree=4157140/4192956
[pid=16970] ppid=16968 vsize=106596 CPUtime=3.49
/proc/16970/stat : 16970 (minimarch) R 16968 16970 15557 0 -1 4194304 24489 0 0 0 335 14 0 0 25 0 1 0 135081035 109154304 24473 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134523033 0 0 4096 3 0 0 0 17 1 0 0
/proc/16970/statm: 26649 24473 51 132 0 26514 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 106596

[startup+3.6013 s]
/proc/loadavg: 0.97 0.96 0.98 2/78 16971
/proc/meminfo: memFree=1646848/2055920 swapFree=4157140/4192956
[pid=16970] ppid=16968 vsize=106596 CPUtime=3.59
/proc/16970/stat : 16970 (minimarch) R 16968 16970 15557 0 -1 4194304 24489 0 0 0 345 14 0 0 25 0 1 0 135081035 109154304 24473 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134523361 0 0 4096 3 0 0 0 17 1 0 0
/proc/16970/statm: 26649 24473 51 132 0 26514 0
Current children cumulated CPU time (s) 3.59
Current children cumulated vsize (KiB) 106596

Child status: 20
Real time (s): 3.64928
CPU time (s): 3.64644
CPU user time (s): 3.48647
CPU system time (s): 0.159975
CPU usage (%): 99.9223
Max. virtual memory (cumulated for all children) (KiB): 106596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.48647
system time used= 0.159975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24505
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= 78

runsolver used 0.010998 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node30 on Wed Apr 18 04:47:34 UTC 2007

IDJOB= 312986
IDBENCH= 20355
IDSOLVER= 110
FILE ID= node30/312986-1176871653

PBS_JOBID= 4590263

Free space on /tmp= 66486 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-sat/total-5-17-s.cnf
COMMAND LINE= /tmp/evaluation/312986-1176871653/minimarch /tmp/evaluation/312986-1176871653/instance-312986-1176871653.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-312986-1176871653 -o ROOT/results/node30/solver-312986-1176871653 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/312986-1176871653/minimarch /tmp/evaluation/312986-1176871653/instance-312986-1176871653.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  f18bf849f2b9def7e7425f3fb13fa10f

RANDOM SEED= 708555430

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node30.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		: 3000.218
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		: 3000.218
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:       1745312 kB
Buffers:         22232 kB
Cached:         203912 kB
SwapCached:      15256 kB
Active:         112356 kB
Inactive:       156452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1745312 kB
SwapTotal:     4192956 kB
SwapFree:      4157140 kB
Dirty:           25052 kB
Writeback:           0 kB
Mapped:          49608 kB
Slab:            27260 kB
Committed_AS:  2819956 kB
PageTables:       1832 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= 66486 MiB

End job on node30 on Wed Apr 18 04:47:37 UTC 2007