Trace number 3348477

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
minisat hack: cir_minisat 2011-03-02UNSAT 4.40833 4.4092

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-6-U-7061.cnf
MD5SUMb15321a24257fa4bdfd9c20c782f4c0e
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.97739
Satisfiable
(Un)Satisfiability was proved
Number of variables370048
Number of clauses1118066
Sum of the clauses size2910246
Maximum clause length493
Minimum clause length1
Number of clauses of size 194
Number of clauses of size 2742801
Number of clauses of size 3369913
Number of clauses of size 41454
Number of clauses of size 5618
Number of clauses of size over 53186

Solver Data 

4.30/4.40	c WARNING: for repeatability, setting FPU to use double precision
4.30/4.40	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: 961)

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-3348477-1304974811/watcher-3348477-1304974811 -o /tmp/evaluation-result-3348477-1304974811/solver-3348477-1304974811 -C 2400 -W 1300 -M 7680 HOME/cir_minisat HOME/instance-3348477-1304974811.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: 2.67 3.58 3.84 5/300 23551
/proc/meminfo: memFree=29868180/32951124 swapFree=54427412/67111528
[pid=23551] ppid=23549 vsize=27756 CPUtime=0 cores=4,6
/proc/23551/stat : 23551 (cir_minisat) R 23549 23551 22352 0 -1 4202496 2541 0 0 0 0 0 0 0 25 0 1 0 609079094 28422144 2410 33554432000 4194304 4254575 140734666707472 18446744073709551615 4240513 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23551/statm: 6939 2412 213 15 0 3582 0

[startup+0.0403949 s]
/proc/loadavg: 2.67 3.58 3.84 5/300 23551
/proc/meminfo: memFree=29868180/32951124 swapFree=54427412/67111528
[pid=23551] ppid=23549 vsize=48024 CPUtime=0.03 cores=4,6
/proc/23551/stat : 23551 (cir_minisat) R 23549 23551 22352 0 -1 4202496 6436 0 0 0 3 0 0 0 25 0 1 0 609079094 49176576 6235 33554432000 4194304 4254575 140734666707472 18446744073709551615 4241321 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23551/statm: 12006 6235 213 15 0 8649 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 48024

[startup+0.100409 s]
/proc/loadavg: 2.67 3.58 3.84 5/300 23551
/proc/meminfo: memFree=29868180/32951124 swapFree=54427412/67111528
[pid=23551] ppid=23549 vsize=55776 CPUtime=0.09 cores=4,6
/proc/23551/stat : 23551 (cir_minisat) R 23549 23551 22352 0 -1 4202496 9522 0 0 0 8 1 0 0 25 0 1 0 609079094 57114624 9120 33554432000 4194304 4254575 140734666707472 18446744073709551615 228122374853 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23551/statm: 13944 9121 213 15 0 10587 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 55776

[startup+0.300374 s]
/proc/loadavg: 2.67 3.58 3.84 5/300 23551
/proc/meminfo: memFree=29868180/32951124 swapFree=54427412/67111528
[pid=23551] ppid=23549 vsize=100100 CPUtime=0.29 cores=4,6
/proc/23551/stat : 23551 (cir_minisat) R 23549 23551 22352 0 -1 4202496 20044 0 0 0 26 3 0 0 25 0 1 0 609079094 102502400 18860 33554432000 4194304 4254575 140734666707472 18446744073709551615 228122374853 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23551/statm: 25025 18862 213 15 0 21668 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 100100

[startup+0.700294 s]
/proc/loadavg: 2.67 3.58 3.84 5/300 23551
/proc/meminfo: memFree=29868180/32951124 swapFree=54427412/67111528
[pid=23551] ppid=23549 vsize=103268 CPUtime=0.68 cores=4,6
/proc/23551/stat : 23551 (cir_minisat) R 23549 23551 22352 0 -1 4202496 21671 0 0 0 65 3 0 0 25 0 1 0 609079094 105746432 20117 33554432000 4194304 4254575 140734666707472 18446744073709551615 4216984 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23551/statm: 25817 20117 222 15 0 22460 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 103268

[startup+1.50116 s]
/proc/loadavg: 2.67 3.58 3.84 6/301 23552
/proc/meminfo: memFree=29779404/32951124 swapFree=54427412/67111528
[pid=23551] ppid=23549 vsize=106060 CPUtime=1.49 cores=4,6
/proc/23551/stat : 23551 (cir_minisat) R 23549 23551 22352 0 -1 4202496 22090 0 0 0 146 3 0 0 25 0 1 0 609079094 108605440 20535 33554432000 4194304 4254575 140734666707472 18446744073709551615 4216441 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23551/statm: 26515 20535 229 15 0 23158 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 106060

[startup+3.10085 s]
/proc/loadavg: 2.67 3.58 3.84 6/301 23552
/proc/meminfo: memFree=29771840/32951124 swapFree=54427412/67111528
[pid=23551] ppid=23549 vsize=106060 CPUtime=3.09 cores=4,6
/proc/23551/stat : 23551 (cir_minisat) R 23549 23551 22352 0 -1 4202496 22128 0 0 0 306 3 0 0 25 0 1 0 609079094 108605440 20573 33554432000 4194304 4254575 140734666707472 18446744073709551615 4216513 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23551/statm: 26515 20573 229 15 0 23158 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 106060

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

[startup+3.90072 s]
/proc/loadavg: 2.78 3.58 3.84 6/301 23552
/proc/meminfo: memFree=29765872/32951124 swapFree=54427412/67111528
[pid=23551] ppid=23549 vsize=106060 CPUtime=3.89 cores=4,6
/proc/23551/stat : 23551 (cir_minisat) R 23549 23551 22352 0 -1 4202496 22155 0 0 0 386 3 0 0 25 0 1 0 609079094 108605440 20599 33554432000 4194304 4254575 140734666707472 18446744073709551615 4216562 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23551/statm: 26515 20599 229 15 0 23158 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 106060

[startup+4.30064 s]
/proc/loadavg: 2.78 3.58 3.84 7/301 23552
/proc/meminfo: memFree=29758680/32951124 swapFree=54427412/67111528
[pid=23551] ppid=23549 vsize=106060 CPUtime=4.3 cores=4,6
/proc/23551/stat : 23551 (cir_minisat) R 23549 23551 22352 0 -1 4202496 22160 0 0 0 427 3 0 0 25 0 1 0 609079094 108605440 20604 33554432000 4194304 4254575 140734666707472 18446744073709551615 4209186 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23551/statm: 26515 20604 229 15 0 23158 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 106060

Child status: 20
Real time (s): 4.4092
CPU time (s): 4.40833
CPU user time (s): 4.36534
CPU system time (s): 0.042993
CPU usage (%): 99.9803
Max. virtual memory (cumulated for all children) (KiB): 106060

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.36534
system time used= 0.042993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 22166
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= 4
involuntary context switches= 8

runsolver used 0.022996 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node138 at 2011-05-09 23:00:11
IDJOB=3348477
IDBENCH=88178
IDSOLVER=1810
FILE ID=node138/3348477-1304974811
RUNJOBID= node138-1304974799-23487
PBS_JOBID= 13285612
Free space on /tmp= 47364 MiB

SOLVER NAME= minisat hack: cir_minisat 2011-03-02
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-6-U-7061.cnf
COMMAND LINE= HOME/cir_minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3348477-1304974811/watcher-3348477-1304974811 -o /tmp/evaluation-result-3348477-1304974811/solver-3348477-1304974811 -C 2400 -W 1300 -M 7680  HOME/cir_minisat HOME/instance-3348477-1304974811.cnf

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

MD5SUM BENCH= b15321a24257fa4bdfd9c20c782f4c0e
RANDOM SEED=191857443

node138.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		: 2666.854
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	: 5333.70
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		: 2666.854
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	: 5332.75
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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.80
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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:      29868584 kB
Buffers:        145328 kB
Cached:        2067016 kB
SwapCached:      17996 kB
Active:        1231900 kB
Inactive:      1665640 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      29868584 kB
SwapTotal:    67111528 kB
SwapFree:     54427412 kB
Dirty:          301940 kB
Writeback:           0 kB
AnonPages:      678352 kB
Mapped:           9364 kB
Slab:            80344 kB
PageTables:      42556 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 40244628 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= 47364 MiB
End job on node138 at 2011-05-09 23:00:16