Trace number 1824768

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
SAT07 reference solver: picosat 535UNSAT 200.324 200.392

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-13-u.cnf
MD5SUM127968d7d14f3ab7655995f561e62ed8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark37.9452
Satisfiable
(Un)Satisfiability was proved
Number of variables178708
Number of clauses806681
Sum of the clauses size1842626
Maximum clause length10
Minimum clause length1
Number of clauses of size 115072
Number of clauses of size 2648853
Number of clauses of size 3108896
Number of clauses of size 43760
Number of clauses of size 515040
Number of clauses of size over 515060

Solver Data 

200.23/200.38	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-1824768-1242479494/watcher-1824768-1242479494 -o /tmp/evaluation-result-1824768-1242479494/solver-1824768-1242479494 -C 10000 -W 12000 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1824768-1242479494.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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: 1.07 1.00 0.93 3/64 31562
/proc/meminfo: memFree=564640/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=728 CPUtime=0
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 95 0 0 0 0 0 0 0 18 0 1 0 275982752 745472 81 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 182 82 40 102 0 77 0

[startup+0.029665 s]
/proc/loadavg: 1.07 1.00 0.93 3/64 31562
/proc/meminfo: memFree=564640/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=1672 CPUtime=0.02
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 291 0 0 0 1 1 0 0 18 0 1 0 275982752 1712128 277 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 418 277 40 102 0 313 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1672

[startup+0.101673 s]
/proc/loadavg: 1.07 1.00 0.93 3/64 31562
/proc/meminfo: memFree=564640/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=2796 CPUtime=0.09
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 493 0 0 0 5 4 0 0 18 0 1 0 275982752 2863104 470 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 699 470 40 102 0 594 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2796

[startup+0.301696 s]
/proc/loadavg: 1.07 1.00 0.93 3/64 31562
/proc/meminfo: memFree=564640/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=3192 CPUtime=0.29
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 614 0 0 0 14 15 0 0 20 0 1 0 275982752 3268608 591 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 798 591 40 102 0 693 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3192

[startup+0.701743 s]
/proc/loadavg: 1.07 1.00 0.93 3/64 31562
/proc/meminfo: memFree=564640/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=10400 CPUtime=0.69
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 1967 0 0 0 31 38 0 0 23 0 1 0 275982752 10649600 1944 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 2600 1944 40 102 0 2495 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10400

[startup+1.50184 s]
/proc/loadavg: 1.07 1.00 0.93 2/65 31563
/proc/meminfo: memFree=551704/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=20184 CPUtime=1.49
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 3480 0 0 0 65 84 0 0 25 0 1 0 275982752 20668416 3457 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 5046 3457 40 102 0 4941 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 20184

[startup+3.10103 s]
/proc/loadavg: 1.07 1.00 0.93 2/65 31563
/proc/meminfo: memFree=549528/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=24356 CPUtime=3.08
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 4487 0 0 0 138 170 0 0 25 0 1 0 275982752 24940544 4464 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 6089 4464 40 102 0 5984 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 24356

[startup+6.30141 s]
/proc/loadavg: 1.06 1.00 0.93 2/65 31563
/proc/meminfo: memFree=540640/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=35056 CPUtime=6.29
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 6563 0 0 0 301 328 0 0 25 0 1 0 275982752 35897344 6529 1992294400 134512640 134931368 4294956240 18446744073709551615 134524238 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 8764 6529 42 102 0 8659 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 35056

[startup+12.7012 s]
/proc/loadavg: 1.06 1.00 0.93 2/65 31563
/proc/meminfo: memFree=538152/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=35064 CPUtime=12.69
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 6640 0 0 0 941 328 0 0 25 0 1 0 275982752 35905536 6604 1992294400 134512640 134931368 4294956240 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 8766 6604 48 102 0 8661 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 35064

[startup+25.5017 s]
/proc/loadavg: 1.05 1.00 0.93 2/65 31563
/proc/meminfo: memFree=538216/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=35064 CPUtime=25.49
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 6640 0 0 0 2221 328 0 0 25 0 1 0 275982752 35905536 6604 1992294400 134512640 134931368 4294956240 18446744073709551615 134522834 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 8766 6604 48 102 0 8661 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 35064

[startup+51.1017 s]
/proc/loadavg: 1.03 1.00 0.93 2/65 31563
/proc/meminfo: memFree=538280/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=35064 CPUtime=51.06
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 6641 0 0 0 4778 328 0 0 25 0 1 0 275982752 35905536 6605 1992294400 134512640 134931368 4294956240 18446744073709551615 134525807 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 8766 6605 48 102 0 8661 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 35064

[startup+102.306 s]
/proc/loadavg: 1.01 1.00 0.93 2/65 31563
/proc/meminfo: memFree=536296/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=37012 CPUtime=102.26
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 7157 0 0 0 9897 329 0 0 25 0 1 0 275982752 37900288 7121 1992294400 134512640 134931368 4294956240 18446744073709551615 134525528 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 9253 7121 48 102 0 9148 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 37012

[startup+162.302 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 31563
/proc/meminfo: memFree=536232/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=37012 CPUtime=162.24
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 7161 0 0 0 15895 329 0 0 25 0 1 0 275982752 37900288 7125 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 9253 7125 48 102 0 9148 0
Current children cumulated CPU time (s) 162.24
Current children cumulated vsize (KiB) 37012

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

[startup+179.103 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 31563
/proc/meminfo: memFree=536232/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=37012 CPUtime=179.03
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 7161 0 0 0 17574 329 0 0 25 0 1 0 275982752 37900288 7125 1992294400 134512640 134931368 4294956240 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 9253 7125 48 102 0 9148 0
Current children cumulated CPU time (s) 179.03
Current children cumulated vsize (KiB) 37012

[startup+191.901 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 31563
/proc/meminfo: memFree=536232/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=37012 CPUtime=191.83
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 7161 0 0 0 18854 329 0 0 25 0 1 0 275982752 37900288 7125 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 9253 7125 48 102 0 9148 0
Current children cumulated CPU time (s) 191.83
Current children cumulated vsize (KiB) 37012

[startup+195.102 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 31563
/proc/meminfo: memFree=536232/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=37012 CPUtime=195.03
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 7161 0 0 0 19174 329 0 0 25 0 1 0 275982752 37900288 7125 1992294400 134512640 134931368 4294956240 18446744073709551615 134530198 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 9253 7125 48 102 0 9148 0
Current children cumulated CPU time (s) 195.03
Current children cumulated vsize (KiB) 37012

[startup+198.301 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 31563
/proc/meminfo: memFree=536232/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=37012 CPUtime=198.23
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 7161 0 0 0 19494 329 0 0 25 0 1 0 275982752 37900288 7125 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 9253 7125 48 102 0 9148 0
Current children cumulated CPU time (s) 198.23
Current children cumulated vsize (KiB) 37012

[startup+199.105 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 31563
/proc/meminfo: memFree=536232/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=37012 CPUtime=199.03
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 7161 0 0 0 19574 329 0 0 25 0 1 0 275982752 37900288 7125 1992294400 134512640 134931368 4294956240 18446744073709551615 134530810 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 9253 7125 48 102 0 9148 0
Current children cumulated CPU time (s) 199.03
Current children cumulated vsize (KiB) 37012

[startup+199.901 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 31563
/proc/meminfo: memFree=536232/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=37012 CPUtime=199.83
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 7161 0 0 0 19654 329 0 0 25 0 1 0 275982752 37900288 7125 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 9253 7125 48 102 0 9148 0
Current children cumulated CPU time (s) 199.83
Current children cumulated vsize (KiB) 37012

[startup+200.301 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 31563
/proc/meminfo: memFree=536232/2055920 swapFree=4173864/4192956
[pid=31562] ppid=31560 vsize=37012 CPUtime=200.23
/proc/31562/stat : 31562 (picosat) R 31560 31562 31468 0 -1 4194304 7161 0 0 0 19694 329 0 0 25 0 1 0 275982752 37900288 7125 1992294400 134512640 134931368 4294956240 18446744073709551615 134524112 0 0 4096 0 0 0 0 17 1 0 0
/proc/31562/statm: 9253 7125 48 102 0 9148 0
Current children cumulated CPU time (s) 200.23
Current children cumulated vsize (KiB) 37012

Child status: 20
Real time (s): 200.392
CPU time (s): 200.324
CPU user time (s): 197.026
CPU system time (s): 3.2975
CPU usage (%): 99.966
Max. virtual memory (cumulated for all children) (KiB): 37012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 197.026
system time used= 3.2975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7163
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= 396

runsolver used 0.175973 second user time and 0.446932 second system time

The end

Launcher Data 

Begin job on node20 at 2009-05-16 15:11:35
IDJOB=1824768
IDBENCH=20347
IDSOLVER=666
FILE ID=node20/1824768-1242479494
PBS_JOBID= 9306849
Free space on /tmp= 66212 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT07/industrial/anbulagan/medium-unsat/total-5-13-u.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1824768-1242479494/watcher-1824768-1242479494 -o /tmp/evaluation-result-1824768-1242479494/solver-1824768-1242479494 -C 10000 -W 12000 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1824768-1242479494.cnf            

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 127968d7d14f3ab7655995f561e62ed8
RANDOM SEED=1568373835

node20.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		: 3000.214
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		: 3000.214
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:        565056 kB
Buffers:         98216 kB
Cached:        1274568 kB
SwapCached:      13464 kB
Active:         121972 kB
Inactive:      1265916 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        565056 kB
SwapTotal:     4192956 kB
SwapFree:      4173864 kB
Dirty:           14604 kB
Writeback:           0 kB
Mapped:          13472 kB
Slab:            88976 kB
Committed_AS:  1100812 kB
PageTables:       1396 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= 66212 MiB
End job on node20 at 2009-05-16 15:14:56