Trace number 3283272

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
PicoSAT 941UNSAT 13.303 13.3059

General information on the benchmark

NameAPPLICATIONS/diagnosis/
UTI-20-10t0.cnf
MD5SUM9029cec808e66e35ae213dc5615fd1f7
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.15537
Satisfiable
(Un)Satisfiability was proved
Number of variables237336
Number of clauses1262609
Sum of the clauses size3042396
Maximum clause length10
Minimum clause length1
Number of clauses of size 113421
Number of clauses of size 2900089
Number of clauses of size 3288599
Number of clauses of size 46720
Number of clauses of size 526880
Number of clauses of size over 526900

Solver Data 

13.19/13.27	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3283272-1303759860/watcher-3283272-1303759860 -o /tmp/evaluation-result-3283272-1303759860/solver-3283272-1303759860 -C 2400 -W 1300 -M 7680 picosat HOME/instance-3283272-1303759860.cnf 

running on 2 cores: 4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 4.04 3.75 4.61 5/189 20884
/proc/meminfo: memFree=14534540/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=13860 CPUtime=0 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 1149 0 0 0 0 0 0 0 23 0 1 0 468401684 14192640 1096 33554432000 134512640 134603332 4293883920 18446744073709551615 134557477 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 3465 1102 89 23 0 3091 0

[startup+0.061373 s]
/proc/loadavg: 4.04 3.75 4.61 5/189 20884
/proc/meminfo: memFree=14534540/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=19756 CPUtime=0.05 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 4529 0 0 0 5 0 0 0 23 0 1 0 468401684 20230144 4476 33554432000 134512640 134603332 4293883920 18446744073709551615 3057148 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 4939 4476 90 23 0 4565 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 19756

[startup+0.100378 s]
/proc/loadavg: 4.04 3.75 4.61 5/189 20884
/proc/meminfo: memFree=14534540/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=22792 CPUtime=0.08 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 5387 0 0 0 8 0 0 0 23 0 1 0 468401684 23339008 5334 33554432000 134512640 134603332 4293883920 18446744073709551615 3057148 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 5698 5336 90 23 0 5324 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 22792

[startup+0.300303 s]
/proc/loadavg: 4.04 3.75 4.61 5/189 20884
/proc/meminfo: memFree=14534540/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=39328 CPUtime=0.29 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 9160 0 0 0 27 2 0 0 25 0 1 0 468401684 40271872 9107 33554432000 134512640 134603332 4293883920 18446744073709551615 3057148 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 9832 9108 90 23 0 9458 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 39328

[startup+0.700229 s]
/proc/loadavg: 4.04 3.75 4.61 5/189 20884
/proc/meminfo: memFree=14534540/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=67048 CPUtime=0.69 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 15522 0 0 0 66 3 0 0 25 0 1 0 468401684 68657152 15469 33554432000 134512640 134603332 4293883920 18446744073709551615 134581759 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 16762 15469 98 23 0 16388 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 67048

[startup+1.5011 s]
/proc/loadavg: 4.04 3.75 4.61 5/190 20885
/proc/meminfo: memFree=14472292/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=67180 CPUtime=1.49 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 15616 0 0 0 146 3 0 0 25 0 1 0 468401684 68792320 15563 33554432000 134512640 134603332 4293883920 18446744073709551615 134550655 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 16795 15563 98 23 0 16421 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 67180

[startup+3.1008 s]
/proc/loadavg: 4.03 3.75 4.61 5/190 20885
/proc/meminfo: memFree=14468696/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=67692 CPUtime=3.09 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 15662 0 0 0 306 3 0 0 25 0 1 0 468401684 69316608 15609 33554432000 134512640 134603332 4293883920 18446744073709551615 134527450 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 16923 15609 98 23 0 16549 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 67692

[startup+6.30121 s]
/proc/loadavg: 4.03 3.75 4.61 5/190 20912
/proc/meminfo: memFree=14503156/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=67692 CPUtime=6.29 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 15704 0 0 0 626 3 0 0 25 0 1 0 468401684 69316608 15651 33554432000 134512640 134603332 4293883920 18446744073709551615 134527239 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 16923 15651 98 23 0 16549 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 67692

[startup+12.701 s]
/proc/loadavg: 4.03 3.76 4.61 5/190 20912
/proc/meminfo: memFree=14498396/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=67692 CPUtime=12.69 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 15733 0 0 0 1266 3 0 0 25 0 1 0 468401684 69316608 15680 33554432000 134512640 134603332 4293883920 18446744073709551615 134555860 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 16923 15680 98 23 0 16549 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 67692

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

[startup+13.1009 s]
/proc/loadavg: 4.03 3.76 4.60 5/190 20912
/proc/meminfo: memFree=14497900/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=67692 CPUtime=13.09 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 15735 0 0 0 1306 3 0 0 25 0 1 0 468401684 69316608 15682 33554432000 134512640 134603332 4293883920 18446744073709551615 134573598 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 16923 15682 98 23 0 16549 0
Current children cumulated CPU time (s) 13.09
Current children cumulated vsize (KiB) 67692

[startup+13.3008 s]
/proc/loadavg: 4.03 3.76 4.60 5/190 20912
/proc/meminfo: memFree=14497900/32951124 swapFree=67111528/67111528
[pid=20884] ppid=20882 vsize=67696 CPUtime=13.29 cores=4,6
/proc/20884/stat : 20884 (picosat) R 20882 20884 20705 0 -1 4202496 15763 0 0 0 1326 3 0 0 25 0 1 0 468401684 69320704 15710 33554432000 134512640 134603332 4293883920 18446744073709551615 2710752 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/20884/statm: 16924 15710 100 23 0 16550 0
Current children cumulated CPU time (s) 13.29
Current children cumulated vsize (KiB) 67696

Child status: 20
Real time (s): 13.3059
CPU time (s): 13.303
CPU user time (s): 13.263
CPU system time (s): 0.039993
CPU usage (%): 99.9781
Max. virtual memory (cumulated for all children) (KiB): 67696

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.263
system time used= 0.039993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15764
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= 3
involuntary context switches= 22

runsolver used 0.023996 second user time and 0.054991 second system time

The end

Launcher Data 

Begin job on node141 at 2011-04-25 21:31:01
IDJOB=3283272
IDBENCH=71012
IDSOLVER=1604
FILE ID=node141/3283272-1303759860
RUNJOBID= node141-1303759502-20724
PBS_JOBID= 13157120
Free space on /tmp= 71184 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT09/APPLICATIONS/diagnosis/UTI-20-10t0.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3283272-1303759860/watcher-3283272-1303759860 -o /tmp/evaluation-result-3283272-1303759860/solver-3283272-1303759860 -C 2400 -W 1300 -M 7680  picosat HOME/instance-3283272-1303759860.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 9029cec808e66e35ae213dc5615fd1f7
RANDOM SEED=547000020

node141.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.61
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5362.96
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.806
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      14534696 kB
Buffers:       1637056 kB
Cached:       15854544 kB
SwapCached:          0 kB
Active:       10462420 kB
Inactive:      7378664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      14534696 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           38656 kB
Writeback:           0 kB
AnonPages:      349012 kB
Mapped:          15708 kB
Slab:           510864 kB
PageTables:       5824 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   542688 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71192 MiB
End job on node141 at 2011-04-25 21:31:14