Trace number 1541827

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 7Signal 0.871866 0.873555

General information on the benchmark

NameRANDOM/MEDIUM/7SAT/SATISFIABLE/60/
unif-k7-r89-v60-c5340-S1858385213-060.cnf
MD5SUM769b1d78f1df1ca341c4fa4a9e3927fb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.075988
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses5340
Sum of the clauses size37380
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 55340

Solver Data 

0.00/0.05	c Heuristic : G2WSAT
0.00/0.05	c Hybrid barrier : 1 
0.00/0.05	c Problem instance: numAtoms = 60, numClauses = 5340, numLiterals = 37380
0.00/0.05	c General parameters: seed=1989934926, cutoff=1000000000, targetCost = 0, print solution: yes
0.00/0.05	c gNovelty+ parameters: noise = 0, walkprob = 1, smoothprob = 100
0.00/0.05	c tries = 1
0.00/0.05	c

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1541827-1238476176/watcher-1541827-1238476176 -o /tmp/evaluation-result-1541827-1238476176/solver-1541827-1238476176 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hybridGM7 HOME/instance-1541827-1238476176.cnf 1989934926 

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 1.00 1.00 3/64 13162
/proc/meminfo: memFree=1240376/2055920 swapFree=4177928/4192956
[pid=13162] ppid=13160 vsize=260600 CPUtime=0
/proc/13162/stat : 13162 (hybridGM7) R 13160 13162 12770 0 -1 4194304 862 0 0 0 0 0 0 0 18 0 1 0 1120283717 266854400 846 1992294400 134512640 135204385 4294956208 18446744073709551615 134542712 0 0 4096 0 0 0 0 17 1 0 0
/proc/13162/statm: 65150 853 55 168 0 64980 0

[startup+0.057447 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13162
/proc/meminfo: memFree=1240376/2055920 swapFree=4177928/4192956
[pid=13162] ppid=13160 vsize=268416 CPUtime=0.05
/proc/13162/stat : 13162 (hybridGM7) R 13160 13162 12770 0 -1 4194304 4626 0 0 0 4 1 0 0 18 0 1 0 1120283717 274857984 4609 1992294400 134512640 135204385 4294956208 18446744073709551615 134537412 0 0 4096 0 0 0 0 17 1 0 0
/proc/13162/statm: 67104 4609 64 168 0 66934 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 268416

[startup+0.101454 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13162
/proc/meminfo: memFree=1240376/2055920 swapFree=4177928/4192956
[pid=13162] ppid=13160 vsize=268416 CPUtime=0.09
/proc/13162/stat : 13162 (hybridGM7) R 13160 13162 12770 0 -1 4194304 4626 0 0 0 8 1 0 0 18 0 1 0 1120283717 274857984 4609 1992294400 134512640 135204385 4294956208 18446744073709551615 134537486 0 0 4096 0 0 0 0 17 1 0 0
/proc/13162/statm: 67104 4609 64 168 0 66934 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 268416

[startup+0.301489 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13162
/proc/meminfo: memFree=1240376/2055920 swapFree=4177928/4192956
[pid=13162] ppid=13160 vsize=269020 CPUtime=0.29
/proc/13162/stat : 13162 (hybridGM7) R 13160 13162 12770 0 -1 4194304 4876 0 0 0 28 1 0 0 19 0 1 0 1120283717 275476480 4853 1992294400 134512640 135204385 4294956208 18446744073709551615 134537272 0 0 4096 0 0 0 0 17 1 0 0
/proc/13162/statm: 67255 4853 85 168 0 67085 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 269020

[startup+0.701557 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13162
/proc/meminfo: memFree=1240376/2055920 swapFree=4177928/4192956
[pid=13162] ppid=13160 vsize=269052 CPUtime=0.69
/proc/13162/stat : 13162 (hybridGM7) R 13160 13162 12770 0 -1 4194304 4934 0 0 0 68 1 0 0 22 0 1 0 1120283717 275509248 4904 1992294400 134512640 135204385 4294956208 18446744073709551615 134537274 0 0 4096 0 0 0 0 17 1 0 0
/proc/13162/statm: 67263 4904 85 168 0 67093 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 269052

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

[startup+0.801575 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 13162
/proc/meminfo: memFree=1240376/2055920 swapFree=4177928/4192956
[pid=13162] ppid=13160 vsize=269136 CPUtime=0.79
/proc/13162/stat : 13162 (hybridGM7) R 13160 13162 12770 0 -1 4195840 7446 0 0 0 75 4 0 0 23 0 1 0 1120283717 275595264 4929 1992294400 134512640 135204385 4294956208 18446744073709551615 134532951 0 0 4096 0 0 0 0 17 1 0 0
/proc/13162/statm: 67284 4929 85 168 0 67114 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 269136

Child ended because it received signal 11 (SIGSEGV)
Child dumped core
Real time (s): 0.873555
CPU time (s): 0.871866
CPU user time (s): 0.757884
CPU system time (s): 0.113982
CPU usage (%): 99.8067
Max. virtual memory (cumulated for all children) (KiB): 269136

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.757884
system time used= 0.113982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17054
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= 3

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node14 at 2009-03-31 07:09:36
IDJOB=1541827
IDBENCH=70501
IDSOLVER=535
FILE ID=node14/1541827-1238476176
PBS_JOBID= 9061794
Free space on /tmp= 65480 MiB

SOLVER NAME= hybridGM7 7
BENCH NAME= SAT09/RANDOM/MEDIUM/7SAT/SATISFIABLE/60/unif-k7-r89-v60-c5340-S1858385213-060.cnf
COMMAND LINE= HOME/hybridGM7 BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1541827-1238476176/watcher-1541827-1238476176 -o /tmp/evaluation-result-1541827-1238476176/solver-1541827-1238476176 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hybridGM7 HOME/instance-1541827-1238476176.cnf 1989934926 

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

MD5SUM BENCH= 769b1d78f1df1ca341c4fa4a9e3927fb
RANDOM SEED=1989934926

node14.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		: 3000.270
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	: 5931.00
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		: 3000.270
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:       1240792 kB
Buffers:         85152 kB
Cached:         637292 kB
SwapCached:       8964 kB
Active:         143764 kB
Inactive:       589224 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1240792 kB
SwapTotal:     4192956 kB
SwapFree:      4177928 kB
Dirty:            1348 kB
Writeback:           0 kB
Mapped:          16332 kB
Slab:            68036 kB
Committed_AS:  2947484 kB
PageTables:       1456 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= 65460 MiB
End job on node14 at 2009-03-31 07:09:37