Trace number 3348632

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 8.34673 8.35022

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-18-U-10652.cnf
MD5SUMf0f11935e861485056485b47c5e1a7c3
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.08
Satisfiable
(Un)Satisfiability was proved
Number of variables1987351
Number of clauses5963534
Sum of the clauses size14253662
Maximum clause length1155
Minimum clause length1
Number of clauses of size 1109
Number of clauses of size 23971661
Number of clauses of size 31984242
Number of clauses of size 4766
Number of clauses of size 5765
Number of clauses of size over 55991

Solver Data 

8.28/8.33	c WARNING: for repeatability, setting FPU to use double precision
8.28/8.33	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-3348632-1304974799/watcher-3348632-1304974799 -o /tmp/evaluation-result-3348632-1304974799/solver-3348632-1304974799 -C 2400 -W 1300 -M 7680 HOME/cir_minisat HOME/instance-3348632-1304974799.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: 2.25 3.53 3.83 5/300 23524
/proc/meminfo: memFree=30187904/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=25116 CPUtime=0 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 2002 0 0 0 0 0 0 0 21 0 1 0 609078221 25718784 1907 33554432000 4194304 4254575 140733521892464 18446744073709551615 4240513 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 6279 1914 213 15 0 2922 0

[startup+0.0190169 s]
/proc/loadavg: 2.25 3.53 3.83 5/300 23524
/proc/meminfo: memFree=30187904/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=38316 CPUtime=0.01 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 3988 0 0 0 1 0 0 0 21 0 1 0 609078221 39235584 3843 33554432000 4194304 4254575 140733521892464 18446744073709551615 4233688 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 9579 3854 213 15 0 6222 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 38316

[startup+0.101032 s]
/proc/loadavg: 2.25 3.53 3.83 5/300 23524
/proc/meminfo: memFree=30187904/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=115708 CPUtime=0.09 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 21444 0 0 0 6 3 0 0 21 0 1 0 609078221 118484992 21220 33554432000 4194304 4254575 140733521892464 18446744073709551615 4240513 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 28927 21228 213 15 0 25570 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 115708

[startup+0.300994 s]
/proc/loadavg: 2.25 3.53 3.83 5/300 23524
/proc/meminfo: memFree=30187904/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=194612 CPUtime=0.29 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 39726 0 0 0 23 6 0 0 22 0 1 0 609078221 199282688 38866 33554432000 4194304 4254575 140733521892464 18446744073709551615 228122374853 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 48653 38868 213 15 0 45296 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 194612

[startup+0.700906 s]
/proc/loadavg: 2.25 3.53 3.83 5/300 23524
/proc/meminfo: memFree=30187904/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=293840 CPUtime=0.69 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 61349 0 0 0 60 9 0 0 24 0 1 0 609078221 300892160 59007 33554432000 4194304 4254575 140733521892464 18446744073709551615 228122374853 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 73460 59010 213 15 0 70103 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 293840

[startup+1.50075 s]
/proc/loadavg: 2.39 3.54 3.83 5/301 23525
/proc/meminfo: memFree=29557984/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=443888 CPUtime=1.49 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 104525 0 0 0 134 15 0 0 25 0 1 0 609078221 454541312 98720 33554432000 4194304 4254575 140733521892464 18446744073709551615 228122374853 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 110972 98722 213 15 0 107615 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 443888

[startup+3.17745 s]
/proc/loadavg: 2.39 3.54 3.83 5/301 23525
/proc/meminfo: memFree=29557984/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=460432 CPUtime=3.16 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 113298 0 0 0 300 16 0 0 25 0 1 0 609078221 471482368 105219 33554432000 4194304 4254575 140733521892464 18446744073709551615 4216562 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 115108 105219 230 15 0 111751 0
Current children cumulated CPU time (s) 3.16
Current children cumulated vsize (KiB) 460432

[startup+6.30088 s]
/proc/loadavg: 2.39 3.54 3.83 5/301 23526
/proc/meminfo: memFree=29379000/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=477324 CPUtime=6.28 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 116597 0 0 0 612 16 0 0 25 0 1 0 609078221 488779776 108518 33554432000 4194304 4254575 140733521892464 18446744073709551615 4209760 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 119331 108518 230 15 0 115974 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 477324

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

[startup+7.01078 s]
/proc/loadavg: 2.67 3.58 3.84 5/301 23526
/proc/meminfo: memFree=29369824/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=477324 CPUtime=6.99 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 116603 0 0 0 683 16 0 0 25 0 1 0 609078221 488779776 108524 33554432000 4194304 4254575 140733521892464 18446744073709551615 4216513 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 119331 108524 230 15 0 115974 0
Current children cumulated CPU time (s) 6.99
Current children cumulated vsize (KiB) 477324

[startup+7.80061 s]
/proc/loadavg: 2.67 3.58 3.84 5/301 23526
/proc/meminfo: memFree=29369824/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=479032 CPUtime=7.78 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 117042 0 0 0 762 16 0 0 25 0 1 0 609078221 490528768 108963 33554432000 4194304 4254575 140733521892464 18446744073709551615 4216513 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 119758 108963 230 15 0 116401 0
Current children cumulated CPU time (s) 7.78
Current children cumulated vsize (KiB) 479032

[startup+8.20054 s]
/proc/loadavg: 2.67 3.58 3.84 5/301 23526
/proc/meminfo: memFree=29358668/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=479032 CPUtime=8.18 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 117042 0 0 0 802 16 0 0 25 0 1 0 609078221 490528768 108963 33554432000 4194304 4254575 140733521892464 18446744073709551615 4216441 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 119758 108963 230 15 0 116401 0
Current children cumulated CPU time (s) 8.18
Current children cumulated vsize (KiB) 479032

[startup+8.30052 s]
/proc/loadavg: 2.67 3.58 3.84 5/301 23526
/proc/meminfo: memFree=29358668/32951124 swapFree=54427412/67111528
[pid=23524] ppid=23522 vsize=479032 CPUtime=8.28 cores=4,6
/proc/23524/stat : 23524 (cir_minisat) R 23522 23524 22352 0 -1 4202496 117043 0 0 0 812 16 0 0 25 0 1 0 609078221 490528768 108964 33554432000 4194304 4254575 140733521892464 18446744073709551615 4216562 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/23524/statm: 119758 108964 230 15 0 116401 0
Current children cumulated CPU time (s) 8.28
Current children cumulated vsize (KiB) 479032

Child status: 20
Real time (s): 8.35022
CPU time (s): 8.34673
CPU user time (s): 8.15876
CPU system time (s): 0.187971
CPU usage (%): 99.9582
Max. virtual memory (cumulated for all children) (KiB): 479032

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.15876
system time used= 0.187971
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 117048
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= 5
involuntary context switches= 15

runsolver used 0.025996 second user time and 0.044993 second system time

The end

Launcher Data 

Begin job on node138 at 2011-05-09 23:00:03
IDJOB=3348632
IDBENCH=88172
IDSOLVER=1810
FILE ID=node138/3348632-1304974799
RUNJOBID= node138-1304974799-23487
PBS_JOBID= 13285612
Free space on /tmp= 47268 MiB

SOLVER NAME= minisat hack: cir_minisat 2011-03-02
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-18-U-10652.cnf
COMMAND LINE= HOME/cir_minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3348632-1304974799/watcher-3348632-1304974799 -o /tmp/evaluation-result-3348632-1304974799/solver-3348632-1304974799 -C 2400 -W 1300 -M 7680  HOME/cir_minisat HOME/instance-3348632-1304974799.cnf

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

MD5SUM BENCH= f0f11935e861485056485b47c5e1a7c3
RANDOM SEED=90218965

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:      30189688 kB
Buffers:        145264 kB
Cached:        2143208 kB
SwapCached:      17996 kB
Active:         925728 kB
Inactive:      1643160 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      30189688 kB
SwapTotal:    67111528 kB
SwapFree:     54427412 kB
Dirty:          400544 kB
Writeback:           0 kB
AnonPages:      274168 kB
Mapped:           9312 kB
Slab:            90448 kB
PageTables:      41508 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 39834960 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= 47268 MiB
End job on node138 at 2011-05-09 23:00:11