Trace number 1736449

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
clasp 1.2.0-SAT09-32UNSAT 1.77573 1.77607

General information on the benchmark

NameCRAFTED/parity-games/
instance_n5_i6_pp_ci_ce.cnf
MD5SUM2cb95a73fc66a1c6328b2127a33b0a14
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.74873
Satisfiable
(Un)Satisfiability was proved
Number of variables4380
Number of clauses31980
Sum of the clauses size102772
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 27508
Number of clauses of size 313398
Number of clauses of size 47973
Number of clauses of size 53006
Number of clauses of size over 595

Solver Data 

1.69/1.77	c clasp version 1.2.0-SAT09 
1.69/1.77	c Reading from ...811702/instance-1736449-1240811702.cnf
1.69/1.77	c Reading      : Done(0.010s)
1.69/1.77	c Preprocessing: |-\Done(0.080s)
1.69/1.77	c Solving...
1.69/1.77	
1.69/1.77	c Models    : 0     
1.69/1.77	c Time         : 1.760s (Solve: 1.670s)
1.69/1.77	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1736449-1240811702/watcher-1736449-1240811702 -o /tmp/evaluation-result-1736449-1240811702/solver-1736449-1240811702 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1736449-1240811702.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

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: 0.91 0.95 0.98 3/65 26139
/proc/meminfo: memFree=1755176/2055920 swapFree=4181392/4192956
[pid=26139] ppid=26137 vsize=2268 CPUtime=0
/proc/26139/stat : 26139 (clasp) R 26137 26139 25924 0 -1 4194304 312 0 0 0 0 0 0 0 20 0 1 0 109199382 2322432 296 1992294400 134512640 136057169 4294956160 18446744073709551615 135502702 0 0 4096 16386 0 0 0 17 1 0 0
/proc/26139/statm: 567 296 144 377 0 187 0

[startup+0.029513 s]
/proc/loadavg: 0.91 0.95 0.98 3/65 26139
/proc/meminfo: memFree=1755176/2055920 swapFree=4181392/4192956
[pid=26139] ppid=26137 vsize=3688 CPUtime=0.02
/proc/26139/stat : 26139 (clasp) R 26137 26139 25924 0 -1 4194304 742 0 0 0 2 0 0 0 20 0 1 0 109199382 3776512 692 1992294400 134512640 136057169 4294956160 18446744073709551615 134772705 0 0 4096 16386 0 0 0 17 1 0 0
/proc/26139/statm: 922 692 163 377 0 542 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3688

[startup+0.10152 s]
/proc/loadavg: 0.91 0.95 0.98 3/65 26139
/proc/meminfo: memFree=1755176/2055920 swapFree=4181392/4192956
[pid=26139] ppid=26137 vsize=4244 CPUtime=0.09
/proc/26139/stat : 26139 (clasp) R 26137 26139 25924 0 -1 4194304 988 0 0 0 9 0 0 0 20 0 1 0 109199382 4345856 838 1992294400 134512640 136057169 4294956160 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/26139/statm: 1061 838 181 377 0 681 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4244

[startup+0.301541 s]
/proc/loadavg: 0.91 0.95 0.98 3/65 26139
/proc/meminfo: memFree=1755176/2055920 swapFree=4181392/4192956
[pid=26139] ppid=26137 vsize=4244 CPUtime=0.29
/proc/26139/stat : 26139 (clasp) R 26137 26139 25924 0 -1 4194304 989 0 0 0 29 0 0 0 22 0 1 0 109199382 4345856 839 1992294400 134512640 136057169 4294956160 18446744073709551615 134823867 0 0 4096 16386 0 0 0 17 1 0 0
/proc/26139/statm: 1061 839 182 377 0 681 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4244

[startup+0.701586 s]
/proc/loadavg: 0.91 0.95 0.98 3/65 26139
/proc/meminfo: memFree=1755176/2055920 swapFree=4181392/4192956
[pid=26139] ppid=26137 vsize=4772 CPUtime=0.69
/proc/26139/stat : 26139 (clasp) R 26137 26139 25924 0 -1 4194304 1115 0 0 0 69 0 0 0 25 0 1 0 109199382 4886528 965 1992294400 134512640 136057169 4294956160 18446744073709551615 134824081 0 0 4096 16386 0 0 0 17 1 0 0
/proc/26139/statm: 1193 965 182 377 0 813 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4772

[startup+1.50168 s]
/proc/loadavg: 0.91 0.95 0.98 2/66 26140
/proc/meminfo: memFree=1751712/2055920 swapFree=4181392/4192956
[pid=26139] ppid=26137 vsize=5572 CPUtime=1.49
/proc/26139/stat : 26139 (clasp) R 26137 26139 25924 0 -1 4194304 1308 0 0 0 149 0 0 0 25 0 1 0 109199382 5705728 1158 1992294400 134512640 136057169 4294956160 18446744073709551615 134613315 0 0 4096 16386 0 0 0 17 1 0 0
/proc/26139/statm: 1393 1158 182 377 0 1013 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5572

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

[startup+1.7017 s]
/proc/loadavg: 0.91 0.95 0.98 2/66 26140
/proc/meminfo: memFree=1751712/2055920 swapFree=4181392/4192956
[pid=26139] ppid=26137 vsize=5572 CPUtime=1.69
/proc/26139/stat : 26139 (clasp) R 26137 26139 25924 0 -1 4194304 1308 0 0 0 169 0 0 0 25 0 1 0 109199382 5705728 1158 1992294400 134512640 136057169 4294956160 18446744073709551615 134618307 0 0 4096 16386 0 0 0 17 1 0 0
/proc/26139/statm: 1393 1158 182 377 0 1013 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 5572

Child status: 20
Real time (s): 1.77607
CPU time (s): 1.77573
CPU user time (s): 1.76673
CPU system time (s): 0.008998
CPU usage (%): 99.9809
Max. virtual memory (cumulated for all children) (KiB): 5572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.76673
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1312
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= 2

runsolver used 0.006998 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node87 at 2009-04-27 07:55:02
IDJOB=1736449
IDBENCH=71626
IDSOLVER=508
FILE ID=node87/1736449-1240811702
PBS_JOBID= 9187446
Free space on /tmp= 66472 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n5_i6_pp_ci_ce.cnf
COMMAND LINE= HOME/clasp --file=BENCHNAME --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736449-1240811702/watcher-1736449-1240811702 -o /tmp/evaluation-result-1736449-1240811702/solver-1736449-1240811702 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1736449-1240811702.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

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

MD5SUM BENCH= 2cb95a73fc66a1c6328b2127a33b0a14
RANDOM SEED=613114130

node87.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		: 3000.213
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		: 3000.213
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1755656 kB
Buffers:         41444 kB
Cached:         194372 kB
SwapCached:       5584 kB
Active:          91692 kB
Inactive:       152144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1755656 kB
SwapTotal:     4192956 kB
SwapFree:      4181392 kB
Dirty:            2620 kB
Writeback:           0 kB
Mapped:          13472 kB
Slab:            42340 kB
Committed_AS:   425176 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= 66468 MiB
End job on node87 at 2009-04-27 07:55:04