Trace number 1541995

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
hybridGM7 7SAT 0.064989 0.0642491

General information on the benchmark

NameRANDOM/MEDIUM/7SAT/SATISFIABLE/75/
unif-k7-r89-v75-c6675-S342542912-045.cnf
MD5SUM080829f316d0d50a199c4a4a09021eac
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.064989
Satisfiable
(Un)Satisfiability was proved
Number of variables75
Number of clauses6675
Sum of the clauses size46725
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 56675

Solver Data 

0.02/0.05	c Heuristic : G2WSAT
0.02/0.05	c Hybrid barrier : 1 
0.02/0.05	c Problem instance: numAtoms = 75, numClauses = 6675, numLiterals = 46725
0.02/0.05	c General parameters: seed=426615267, cutoff=1000000000, targetCost = 0, print solution: yes
0.02/0.05	c gNovelty+ parameters: noise = 0, walkprob = 1, smoothprob = 100
0.02/0.05	c tries = 1
0.02/0.05	c 
0.02/0.06	c gNovelty+ (M  0 )
0.02/0.06	s SATISFIABLE
0.02/0.06	v -1
0.02/0.06	v 2
0.02/0.06	v 3
0.02/0.06	v -4
0.02/0.06	v 5
0.02/0.06	v -6
0.02/0.06	v 7
0.02/0.06	v 8
0.02/0.06	v 9
0.02/0.06	v 10
0.02/0.06	v 11
0.02/0.06	v -12
0.02/0.06	v 13
0.02/0.06	v -14
0.02/0.06	v -15
0.02/0.06	v -16
0.02/0.06	v -17
0.02/0.06	v -18
0.02/0.06	v -19
0.02/0.06	v -20
0.02/0.06	v 21
0.02/0.06	v -22
0.02/0.06	v -23
0.02/0.06	v 24
0.02/0.06	v -25
0.02/0.06	v 26
0.02/0.06	v 27
0.02/0.06	v 28
0.02/0.06	v 29
0.02/0.06	v 30
0.02/0.06	v 31
0.02/0.06	v -32
0.02/0.06	v 33
0.02/0.06	v -34
0.02/0.06	v 35
0.02/0.06	v -36
0.02/0.06	v -37
0.02/0.06	v -38
0.02/0.06	v -39
0.02/0.06	v 40
0.02/0.06	v -41
0.02/0.06	v 42
0.02/0.06	v 43
0.02/0.06	v 44
0.02/0.06	v 45
0.02/0.06	v -46
0.02/0.06	v 47
0.02/0.06	v -48
0.02/0.06	v -49
0.02/0.06	v -50
0.02/0.06	v 51
0.02/0.06	v 52
0.02/0.06	v -53
0.02/0.06	v -54
0.02/0.06	v -55
0.02/0.06	v 56
0.02/0.06	v -57
0.02/0.06	v -58
0.02/0.06	v -59
0.02/0.06	v -60
0.02/0.06	v 61
0.02/0.06	v 62
0.02/0.06	v 63
0.02/0.06	v 64
0.02/0.06	v 65
0.02/0.06	v -66
0.02/0.06	v -67
0.02/0.06	v -68
0.02/0.06	v -69
0.02/0.06	v 70
0.02/0.06	v 71
0.02/0.06	v 72
0.02/0.06	v -73
0.02/0.06	v 74
0.02/0.06	v 75
0.02/0.06	v 0
0.02/0.06	c Done in 0.010000 seconds

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1541995-1238489321/watcher-1541995-1238489321 -o /tmp/evaluation-result-1541995-1238489321/solver-1541995-1238489321 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hybridGM7 HOME/instance-1541995-1238489321.cnf 426615267 

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): 1800 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 1.02 1.11 3/70 4313
/proc/meminfo: memFree=1679912/2055920 swapFree=4173176/4192956
[pid=4313] ppid=4311 vsize=260600 CPUtime=0
/proc/4313/stat : 4313 (hybridGM7) R 4311 4313 3781 0 -1 4194304 947 0 0 0 0 0 0 0 18 0 1 0 1121595357 266854400 931 1992294400 134512640 135204385 4294956208 18446744073709551615 134542731 0 0 4096 0 0 0 0 17 1 0 0
/proc/4313/statm: 65150 937 55 168 0 64980 0

[startup+0.0312401 s]
/proc/loadavg: 1.00 1.02 1.11 3/70 4313
/proc/meminfo: memFree=1679912/2055920 swapFree=4173176/4192956
[pid=4313] ppid=4311 vsize=268412 CPUtime=0.02
/proc/4313/stat : 4313 (hybridGM7) R 4311 4313 3781 0 -1 4194304 1240 0 0 0 2 0 0 0 18 0 1 0 1121595357 274853888 1224 1992294400 134512640 135204385 4294956208 18446744073709551615 134543223 0 0 4096 0 0 0 0 17 1 0 0
/proc/4313/statm: 67103 1228 57 168 0 66933 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 268412

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

[startup+0.0312401 s]
/proc/loadavg: 1.00 1.02 1.11 3/70 4313
/proc/meminfo: memFree=1679912/2055920 swapFree=4173176/4192956
[pid=4313] ppid=4311 vsize=268412 CPUtime=0.02
/proc/4313/stat : 4313 (hybridGM7) R 4311 4313 3781 0 -1 4194304 1240 0 0 0 2 0 0 0 18 0 1 0 1121595357 274853888 1224 1992294400 134512640 135204385 4294956208 18446744073709551615 134543223 0 0 4096 0 0 0 0 17 1 0 0
/proc/4313/statm: 67103 1228 57 168 0 66933 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 268412

Child status: 10
Real time (s): 0.0642491
CPU time (s): 0.064989
CPU user time (s): 0.040993
CPU system time (s): 0.023996
CPU usage (%): 101.152
Max. virtual memory (cumulated for all children) (KiB): 268412

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.040993
system time used= 0.023996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4668
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= 2
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node36 at 2009-03-31 10:48:41
IDJOB=1541995
IDBENCH=70529
IDSOLVER=535
FILE ID=node36/1541995-1238489321
PBS_JOBID= 9061817
Free space on /tmp= 66412 MiB

SOLVER NAME= hybridGM7 7
BENCH NAME= SAT09/RANDOM/MEDIUM/7SAT/SATISFIABLE/75/unif-k7-r89-v75-c6675-S342542912-045.cnf
COMMAND LINE= HOME/hybridGM7 BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1541995-1238489321/watcher-1541995-1238489321 -o /tmp/evaluation-result-1541995-1238489321/solver-1541995-1238489321 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hybridGM7 HOME/instance-1541995-1238489321.cnf 426615267 

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 080829f316d0d50a199c4a4a09021eac
RANDOM SEED=426615267

node36.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.214
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		: 3000.214
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:       1680328 kB
Buffers:         70264 kB
Cached:         221292 kB
SwapCached:       9072 kB
Active:         161504 kB
Inactive:       140640 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1680328 kB
SwapTotal:     4192956 kB
SwapFree:      4173176 kB
Dirty:            1208 kB
Writeback:           0 kB
Mapped:          16288 kB
Slab:            58836 kB
Committed_AS:  3061780 kB
PageTables:       1876 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= 66408 MiB
End job on node36 at 2009-03-31 10:48:41