Trace number 1542721

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 0.090985 0.0910891

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S1045096471-025.cnf
MD5SUM855b59e9a0f8a08a40646aec3f122ba2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.047992
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2125
Sum of the clauses size6375
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32125
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.03	c Heuristic: AdaptG2WSAT 
0.00/0.03	c Hybrid barrier : 1 
0.00/0.03	c Problem instance: numAtoms = 500, numClauses = 2125, numLiterals = 6375
0.00/0.03	c General parameters: seed=25617721, cutoff=1000000000, targetCost = 0, print solution: yes
0.00/0.03	c gNovelty+ parameters: noise = 0, walkprob = 1, smoothprob = 33
0.00/0.03	c tries = 1
0.00/0.03	c 
0.00/0.08	c gNovelty+ (M  1 )
0.00/0.08	s SATISFIABLE
0.00/0.08	v 1
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0.00/0.08	v -8
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0.00/0.08	v -11
0.00/0.08	v -12
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0.00/0.09	v 0
0.00/0.09	c Done in 0.050000 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-1542721-1238570716/watcher-1542721-1238570716 -o /tmp/evaluation-result-1542721-1238570716/solver-1542721-1238570716 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hybridGM7 HOME/instance-1542721-1238570716.cnf 25617721 

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: 1.77 1.81 1.50 2/70 10030
/proc/meminfo: memFree=1009736/2055920 swapFree=4170592/4192956
[pid=10030] ppid=10028 vsize=260600 CPUtime=0
/proc/10030/stat : 10030 (hybridGM7) R 10028 10030 9513 0 -1 4194304 939 0 0 0 0 0 0 0 18 0 1 0 1129734239 266854400 923 1992294400 134512640 135204385 4294956208 18446744073709551615 134542712 0 0 4096 0 0 0 0 17 1 0 0
/proc/10030/statm: 65150 930 55 168 0 64980 0

[startup+0.018733 s]
/proc/loadavg: 1.77 1.81 1.50 2/70 10030
/proc/meminfo: memFree=1009736/2055920 swapFree=4170592/4192956
[pid=10030] ppid=10028 vsize=268412 CPUtime=0
/proc/10030/stat : 10030 (hybridGM7) R 10028 10030 9513 0 -1 4194304 2065 0 0 0 0 0 0 0 18 0 1 0 1129734239 274853888 2048 1992294400 134512640 135204385 4294956208 18446744073709551615 134543993 0 0 4096 0 0 0 0 17 1 0 0
/proc/10030/statm: 67103 2049 57 168 0 66933 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 268412

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

[startup+0.018733 s]
/proc/loadavg: 1.77 1.81 1.50 2/70 10030
/proc/meminfo: memFree=1009736/2055920 swapFree=4170592/4192956
[pid=10030] ppid=10028 vsize=268412 CPUtime=0
/proc/10030/stat : 10030 (hybridGM7) R 10028 10030 9513 0 -1 4194304 2065 0 0 0 0 0 0 0 18 0 1 0 1129734239 274853888 2048 1992294400 134512640 135204385 4294956208 18446744073709551615 134543993 0 0 4096 0 0 0 0 17 1 0 0
/proc/10030/statm: 67103 2049 57 168 0 66933 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 268412

Child status: 10
Real time (s): 0.0910891
CPU time (s): 0.090985
CPU user time (s): 0.065989
CPU system time (s): 0.024996
CPU usage (%): 99.8858
Max. virtual memory (cumulated for all children) (KiB): 268412

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.065989
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4726
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 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node45 at 2009-04-01 09:25:16
IDJOB=1542721
IDBENCH=70650
IDSOLVER=535
FILE ID=node45/1542721-1238570716
PBS_JOBID= 9062163
Free space on /tmp= 66416 MiB

SOLVER NAME= hybridGM7 7
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S1045096471-025.cnf
COMMAND LINE= HOME/hybridGM7 BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1542721-1238570716/watcher-1542721-1238570716 -o /tmp/evaluation-result-1542721-1238570716/solver-1542721-1238570716 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hybridGM7 HOME/instance-1542721-1238570716.cnf 25617721 

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

MD5SUM BENCH= 855b59e9a0f8a08a40646aec3f122ba2
RANDOM SEED=25617721

node45.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		: 3000.285
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		: 3000.285
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:       1010152 kB
Buffers:        110368 kB
Cached:         827200 kB
SwapCached:      11508 kB
Active:         202624 kB
Inactive:       747976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1010152 kB
SwapTotal:     4192956 kB
SwapFree:      4170592 kB
Dirty:            1232 kB
Writeback:           0 kB
Mapped:          18672 kB
Slab:            80424 kB
Committed_AS:  2734188 kB
PageTables:       1900 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= 66416 MiB
End job on node45 at 2009-04-01 09:25:16