Trace number 1553311

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 9.10562 9.10868

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.59684
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

9.08/9.10	c clasp version 1.2.0-SAT09 
9.08/9.10	c Reading from ...713490/instance-1553311-1238713490.cnf
9.08/9.10	c Reading      : Done(0.020s)
9.08/9.10	c Preprocessing: |-\|Done(0.220s)
9.08/9.10	c Solving...
9.08/9.10	
9.08/9.10	c Models    : 0     
9.08/9.10	c Time         : 9.080s (Solve: 8.840s)
9.08/9.10	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-1553311-1238713490/watcher-1553311-1238713490 -o /tmp/evaluation-result-1553311-1238713490/solver-1553311-1238713490 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1553311-1238713490.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: 1.00 1.00 1.04 3/64 10620
/proc/meminfo: memFree=1121048/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=2748 CPUtime=0
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 443 0 0 0 0 0 0 0 20 0 1 0 1144014348 2813952 427 1992294400 134512640 136057169 4294956144 18446744073709551615 135459759 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 687 427 144 377 0 307 0

[startup+0.0797731 s]
/proc/loadavg: 1.00 1.00 1.04 3/64 10620
/proc/meminfo: memFree=1121048/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=5624 CPUtime=0.07
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 1265 0 0 0 7 0 0 0 20 0 1 0 1144014348 5758976 1165 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 1406 1165 170 377 0 1026 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5624

[startup+0.101774 s]
/proc/loadavg: 1.00 1.00 1.04 3/64 10620
/proc/meminfo: memFree=1121048/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=6020 CPUtime=0.1
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 1363 0 0 0 10 0 0 0 20 0 1 0 1144014348 6164480 1263 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 1505 1263 170 377 0 1125 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 6020

[startup+0.301794 s]
/proc/loadavg: 1.00 1.00 1.04 3/64 10620
/proc/meminfo: memFree=1121048/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=6892 CPUtime=0.29
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 1737 0 0 0 29 0 0 0 22 0 1 0 1144014348 7057408 1485 1992294400 134512640 136057169 4294956144 18446744073709551615 134756819 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 1723 1485 183 377 0 1343 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6892

[startup+0.701834 s]
/proc/loadavg: 1.00 1.00 1.04 3/64 10620
/proc/meminfo: memFree=1121048/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=7420 CPUtime=0.69
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 1885 0 0 0 69 0 0 0 25 0 1 0 1144014348 7598080 1633 1992294400 134512640 136057169 4294956144 18446744073709551615 134649326 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 1855 1633 183 377 0 1475 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7420

[startup+1.50192 s]
/proc/loadavg: 1.00 1.00 1.04 2/65 10621
/proc/meminfo: memFree=1114896/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=7948 CPUtime=1.49
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 2024 0 0 0 149 0 0 0 25 0 1 0 1144014348 8138752 1772 1992294400 134512640 136057169 4294956144 18446744073709551615 134618315 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 1987 1772 183 377 0 1607 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7948

[startup+3.10108 s]
/proc/loadavg: 1.00 1.00 1.04 2/65 10621
/proc/meminfo: memFree=1114192/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=8344 CPUtime=3.09
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 2118 0 0 0 309 0 0 0 25 0 1 0 1144014348 8544256 1866 1992294400 134512640 136057169 4294956144 18446744073709551615 134637481 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 2086 1866 183 377 0 1706 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8344

[startup+6.3014 s]
/proc/loadavg: 1.00 1.00 1.04 2/65 10621
/proc/meminfo: memFree=1113488/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=10060 CPUtime=6.29
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 2556 0 0 0 629 0 0 0 25 0 1 0 1144014348 10301440 2304 1992294400 134512640 136057169 4294956144 18446744073709551615 134618265 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 2515 2304 183 377 0 2135 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 10060

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

[startup+7.90156 s]
/proc/loadavg: 1.00 1.00 1.04 2/65 10621
/proc/meminfo: memFree=1112336/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=10060 CPUtime=7.89
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 2557 0 0 0 789 0 0 0 25 0 1 0 1144014348 10301440 2305 1992294400 134512640 136057169 4294956144 18446744073709551615 134618141 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 2515 2305 183 377 0 2135 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 10060

[startup+8.70164 s]
/proc/loadavg: 1.00 1.00 1.04 2/65 10621
/proc/meminfo: memFree=1112336/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=10060 CPUtime=8.69
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 2557 0 0 0 869 0 0 0 25 0 1 0 1144014348 10301440 2305 1992294400 134512640 136057169 4294956144 18446744073709551615 134823782 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 2515 2305 183 377 0 2135 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 10060

[startup+9.10168 s]
/proc/loadavg: 1.00 1.00 1.04 2/65 10621
/proc/meminfo: memFree=1112336/2055920 swapFree=4176444/4192956
[pid=10620] ppid=10618 vsize=6216 CPUtime=9.08
/proc/10620/stat : 10620 (clasp) R 10618 10620 10429 0 -1 4194304 2561 0 0 0 908 0 0 0 25 0 1 0 1144014348 6365184 1351 1992294400 134512640 136057169 4294956144 18446744073709551615 135438023 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10620/statm: 1554 1351 187 377 0 1174 0
Current children cumulated CPU time (s) 9.08
Current children cumulated vsize (KiB) 6216

Child status: 20
Real time (s): 9.10868
CPU time (s): 9.10562
CPU user time (s): 9.09562
CPU system time (s): 0.009998
CPU usage (%): 99.9664
Max. virtual memory (cumulated for all children) (KiB): 10060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.09562
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2561
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= 15

runsolver used 0.014997 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-03 01:04:50
IDJOB=1553311
IDBENCH=70759
IDSOLVER=508
FILE ID=node27/1553311-1238713490
PBS_JOBID= 9085299
Free space on /tmp= 65560 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.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-1553311-1238713490/watcher-1553311-1238713490 -o /tmp/evaluation-result-1553311-1238713490/solver-1553311-1238713490 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1553311-1238713490.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= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=296131847

node27.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		: 2800.196
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	: 5521.40
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		: 2800.196
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:       1121464 kB
Buffers:         99144 kB
Cached:         729396 kB
SwapCached:       9492 kB
Active:          89900 kB
Inactive:       749776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1121464 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:            2304 kB
Writeback:           0 kB
Mapped:          16788 kB
Slab:            80616 kB
Committed_AS:  3117480 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65560 MiB
End job on node27 at 2009-04-03 01:04:59