Trace number 1555631

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
CircUs 2009-03-23UNSAT 5.01124 5.01264

General information on the benchmark

NameAPPLICATIONS/
bitverif/maxand/maxand064.cnf
MD5SUMb2d2617ddc348aef0d35df3c8f228dcb
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.81857
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.59/0.69	c CirCUs release 2.0 (compiled 25-Mar-09 at 4:46 PM)
0.59/0.69	c Eliminate time :       0.63 
4.99/5.01	c CNF read time  :       0.05 
4.99/5.01	c CNF solve time :       4.97 
4.99/5.01	c Memory usage :    16.4336 MB
4.99/5.01	c Restart : 28
4.99/5.01	c Decisions : random(2056), heuristic(130935), history(0/0)
4.99/5.01	c Implications : 2808736
4.99/5.01	c Forced Restart : 0
4.99/5.01	c Polarity Change : 165
4.99/5.01	c Learned clasues  : 6471 out of 39753
4.99/5.01	c Learned literals : 356941 out of 2500830
4.99/5.01	c Number of first UIP : 13901 out of 39753
4.99/5.01	c Number of simplify : 1
4.99/5.01	c Number of continuous distill : 402
4.99/5.01	c Average depth of OTS : 14
4.99/5.01	c Average depth of additional conflict : 41
4.99/5.01	c Saved conflict clasues : 195
4.99/5.01	c Saved conflict literals : 5792
4.99/5.01	c Additional conflict clauses : 1162
4.99/5.01	c Additional conflict literals : 64566
4.99/5.01	c Additional conflict analysis : 2566
4.99/5.01	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-1555631-1238742145/watcher-1555631-1238742145 -o /tmp/evaluation-result-1555631-1238742145/solver-1555631-1238742145 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/CirCUs HOME/instance-1555631-1238742145.cnf -t 1200 

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 12691
/proc/meminfo: memFree=1956080/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=2604 CPUtime=0
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 355 0 0 0 0 0 0 0 20 0 1 120000 1146879853 2666496 340 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 651 340 70 173 0 476 0

[startup+0.027591 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12691
/proc/meminfo: memFree=1956080/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=4056 CPUtime=0.02
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 735 0 0 0 2 0 0 0 20 0 1 120000 1146879853 4153344 720 1992294400 134512640 135224549 4294956224 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 1014 720 70 173 0 839 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4056

[startup+0.101598 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12691
/proc/meminfo: memFree=1956080/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=7364 CPUtime=0.09
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 1625 0 0 0 9 0 0 0 20 0 1 120000 1146879853 7540736 1576 1992294400 134512640 135224549 4294956224 18446744073709551615 134632646 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 1841 1577 77 173 0 1666 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7364

[startup+0.301617 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12691
/proc/meminfo: memFree=1956080/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=12488 CPUtime=0.29
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 2939 0 0 0 29 0 0 0 22 0 1 120000 1146879853 12787712 2825 1992294400 134512640 135224549 4294956224 18446744073709551615 134570714 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 3122 2825 77 173 0 2947 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12488

[startup+0.701658 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12691
/proc/meminfo: memFree=1956080/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=14316 CPUtime=0.69
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 3350 0 0 0 69 0 0 0 25 0 1 120000 1146879853 14659584 3236 1992294400 134512640 135224549 4294956224 18446744073709551615 134595283 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 3579 3236 91 173 0 3404 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14316

[startup+1.50174 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12692
/proc/meminfo: memFree=1943272/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=14844 CPUtime=1.49
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 3485 0 0 0 148 1 0 0 25 0 1 120000 1146879853 15200256 3371 1992294400 134512640 135224549 4294956224 18446744073709551615 134632745 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 3711 3371 93 173 0 3536 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14844

[startup+3.1019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12692
/proc/meminfo: memFree=1940904/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=16824 CPUtime=3.09
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 3985 0 0 0 308 1 0 0 25 0 1 120000 1146879853 17227776 3871 1992294400 134512640 135224549 4294956224 18446744073709551615 134595748 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 4206 3871 93 173 0 4031 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16824

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

[startup+3.90198 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12692
/proc/meminfo: memFree=1940776/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=16824 CPUtime=3.89
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 3985 0 0 0 388 1 0 0 25 0 1 120000 1146879853 17227776 3871 1992294400 134512640 135224549 4294956224 18446744073709551615 134588204 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 4206 3871 93 173 0 4031 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 16824

[startup+4.70106 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12692
/proc/meminfo: memFree=1940776/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=16824 CPUtime=4.69
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 3985 0 0 0 468 1 0 0 25 0 1 120000 1146879853 17227776 3871 1992294400 134512640 135224549 4294956224 18446744073709551615 134587793 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 4206 3871 93 173 0 4031 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 16824

[startup+4.90108 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12692
/proc/meminfo: memFree=1940776/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=16824 CPUtime=4.89
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 3985 0 0 0 488 1 0 0 25 0 1 120000 1146879853 17227776 3871 1992294400 134512640 135224549 4294956224 18446744073709551615 134595555 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 4206 3871 93 173 0 4031 0
Current children cumulated CPU time (s) 4.89
Current children cumulated vsize (KiB) 16824

[startup+5.00109 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12692
/proc/meminfo: memFree=1940776/2055920 swapFree=4176444/4192956
[pid=12691] ppid=12689 vsize=15792 CPUtime=4.99
/proc/12691/stat : 12691 (CirCUs) R 12689 12691 12618 0 -1 4194304 3988 0 0 0 498 1 0 0 25 0 1 120000 1146879853 16171008 3701 1992294400 134512640 135224549 4294956224 18446744073709551615 134717017 0 0 4096 8192 0 0 0 17 1 0 0
/proc/12691/statm: 3948 3701 95 173 0 3773 0
Current children cumulated CPU time (s) 4.99
Current children cumulated vsize (KiB) 15792

Child status: 0
Real time (s): 5.01264
CPU time (s): 5.01124
CPU user time (s): 4.99624
CPU system time (s): 0.014997
CPU usage (%): 99.972
Max. virtual memory (cumulated for all children) (KiB): 16824

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.99624
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3989
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= 6

runsolver used 0.008998 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-03 09:02:25
IDJOB=1555631
IDBENCH=70803
IDSOLVER=544
FILE ID=node27/1555631-1238742145
PBS_JOBID= 9085429
Free space on /tmp= 66328 MiB

SOLVER NAME= CircUs 2009-03-23
BENCH NAME= SAT09/APPLICATIONS/bitverif/maxand/maxand064.cnf
COMMAND LINE= HOME/CirCUs BENCHNAME -t TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1555631-1238742145/watcher-1555631-1238742145 -o /tmp/evaluation-result-1555631-1238742145/solver-1555631-1238742145 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/CirCUs HOME/instance-1555631-1238742145.cnf -t 1200

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

MD5SUM BENCH= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=1844335414

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:       1956496 kB
Buffers:          4500 kB
Cached:          31800 kB
SwapCached:       9328 kB
Active:          25792 kB
Inactive:        21516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1956496 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:            1692 kB
Writeback:           0 kB
Mapped:          16836 kB
Slab:            37952 kB
Committed_AS:  3146148 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= 66324 MiB
End job on node27 at 2009-04-03 09:02:30