Trace number 3266524

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
QuteRSat 2011-03-01UNSAT 6.83296 6.8341

General information on the benchmark

NameSAT02/handmade/zhang-lintao/
xor-chain/x1_80.shuffled.cnf
MD5SUM53a7d1541ad9c0dde902ec3a505ae8fc
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.001998
Satisfiable
(Un)Satisfiability was proved
Number of variables238
Number of clauses634
Sum of the clauses size1900
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22
Number of clauses of size 3632
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c Set FPU double precision.
0.00/0.00	c Parse Cnf success: #var: 238 #clause: 634
0.00/0.00	c Find Units :          0
0.00/0.00	c Find Invs  :          1
0.00/0.00	c Find Ands  :          0 AvgFaninNum: nan
0.00/0.00	c Find Xors  :        158 AvgFaninNum: 2
0.00/0.00	c Find Ite   :          0
0.00/0.00	c UnDirect variable: 238
0.00/0.00	c UnDirect to Direct Gate: 145
0.00/0.00	c Forced Direct Gate: 117 Unuse unDirect Gate: 123
0.00/0.00	c Break Cycle : 1
0.00/0.00	c Total Root : 8 Undef Var: 94
0.00/0.00	c After covering, Total Root: 10 Leaf: 89
0.00/0.00	c Variable( cover/uncovered/unused ): 233 5 0
0.00/0.00	c Unit Clauses: 0
0.00/0.00	c Binary Clauses( cover/uncovered ): 2 0
0.00/0.00	c Clauses( cover/uncovered ): 572 60
0.00/0.00	c Total Clauses( cover/uncovered ): 574 60 90.5363%
0.00/0.00	c Covered Ands: 0 Invs: 1 Xors: 143 Ites: 0
0.00/0.00	c Uncover Clauses avg size: 3 max size: 3
0.00/0.00	c Final circuit: i/l/o/s      94       0      60       549
0.00/0.00	c CnfToAig: Time: 0 s
0.00/0.02	c TmMap: Set choices finish.
0.00/0.02	c TmMap: Set big and: 60
0.00/0.02	c TmMap: Origin: 644 ClauseNum: 1647 --> New: 298 ClauseNum: 812
0.00/0.02	c TmMap: Time: 0
0.00/0.02	c Simulation --> TransNum: 812/812 Try to Add: #clause: 120 #xorclause: 143
0.00/0.02	c #var: 237 #clauses: 61 Solving... 
6.79/6.82	s UNSATISFIABLE
6.79/6.83	c CPU time: 6.82 s

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-3266524-1303579990/watcher-3266524-1303579990 -o /tmp/evaluation-result-3266524-1303579990/solver-3266524-1303579990 -C 2400 -W 1300 -M 7680 qutersat_release HOME/instance-3266524-1303579990.cnf 1705367772 

running on 2 cores: 0,2

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: 2.94 3.76 3.86 1/174 10404
/proc/meminfo: memFree=15429640/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=32364 CPUtime=0 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 1779 0 0 0 0 0 0 0 25 0 1 0 469597013 33140736 1713 33554432000 4194304 6016207 140737421118864 18446744073709551615 228122713984 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 8091 1713 398 445 0 1635 0

[startup+0.0339561 s]
/proc/loadavg: 2.94 3.76 3.86 1/174 10404
/proc/meminfo: memFree=15429640/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=45688 CPUtime=0.02 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 3494 0 0 0 2 0 0 0 25 0 1 0 469597013 46784512 3428 33554432000 4194304 6016207 140737421118864 18446744073709551615 4380948 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 11422 3428 712 445 0 4966 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 45688

[startup+0.100945 s]
/proc/loadavg: 2.94 3.76 3.86 1/174 10404
/proc/meminfo: memFree=15429640/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=54168 CPUtime=0.09 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 3773 0 0 0 9 0 0 0 25 0 1 0 469597013 55468032 3707 33554432000 4194304 6016207 140737421118864 18446744073709551615 4425678 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 13542 3707 715 445 0 7086 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 54168

[startup+0.300891 s]
/proc/loadavg: 2.94 3.76 3.86 1/174 10404
/proc/meminfo: memFree=15429640/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=71484 CPUtime=0.29 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 4360 0 0 0 29 0 0 0 25 0 1 0 469597013 73199616 4294 33554432000 4194304 6016207 140737421118864 18446744073709551615 4425476 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 17871 4294 715 445 0 11415 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 71484

[startup+0.700887 s]
/proc/loadavg: 2.94 3.76 3.86 1/174 10404
/proc/meminfo: memFree=15429640/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=80252 CPUtime=0.69 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 5030 0 0 0 69 0 0 0 25 0 1 0 469597013 82178048 4964 33554432000 4194304 6016207 140737421118864 18446744073709551615 4378013 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 20063 4964 731 445 0 13607 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 80252

[startup+1.5007 s]
/proc/loadavg: 3.02 3.76 3.86 5/190 10435
/proc/meminfo: memFree=15310876/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=98044 CPUtime=1.49 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 6658 0 0 0 149 0 0 0 25 0 1 0 469597013 100397056 6592 33554432000 4194304 6016207 140737421118864 18446744073709551615 4370949 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 24511 6593 731 445 0 18055 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 98044

[startup+3.10043 s]
/proc/loadavg: 3.02 3.76 3.86 5/187 10456
/proc/meminfo: memFree=15301896/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=108124 CPUtime=3.09 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 9937 0 0 0 308 1 0 0 25 0 1 0 469597013 110718976 9871 33554432000 4194304 6016207 140737421118864 18446744073709551615 4536464 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 27031 9871 731 445 0 20575 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 108124

[startup+6.30086 s]
/proc/loadavg: 3.02 3.76 3.86 5/190 10489
/proc/meminfo: memFree=14638008/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=108124 CPUtime=6.29 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 12073 0 0 0 628 1 0 0 25 0 1 0 469597013 110718976 12007 33554432000 4194304 6016207 140737421118864 18446744073709551615 4425984 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 27031 12007 731 445 0 20575 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 108124

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

[startup+6.70078 s]
/proc/loadavg: 3.10 3.76 3.86 5/190 10489
/proc/meminfo: memFree=14634288/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=108124 CPUtime=6.69 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 12074 0 0 0 668 1 0 0 25 0 1 0 469597013 110718976 12008 33554432000 4194304 6016207 140737421118864 18446744073709551615 4425476 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 27031 12008 731 445 0 20575 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 108124

[startup+6.80076 s]
/proc/loadavg: 3.10 3.76 3.86 5/190 10489
/proc/meminfo: memFree=14634288/32951124 swapFree=67111528/67111528
[pid=10404] ppid=10402 vsize=108124 CPUtime=6.79 cores=0,2
/proc/10404/stat : 10404 (qutersat_releas) R 10402 10404 10374 0 -1 4202496 12074 0 0 0 678 1 0 0 25 0 1 0 469597013 110718976 12008 33554432000 4194304 6016207 140737421118864 18446744073709551615 4381304 0 0 4096 16386 0 0 0 17 0 0 0 0
/proc/10404/statm: 27031 12008 731 445 0 20575 0
Current children cumulated CPU time (s) 6.79
Current children cumulated vsize (KiB) 108124

Child status: 0
Real time (s): 6.8341
CPU time (s): 6.83296
CPU user time (s): 6.81796
CPU system time (s): 0.014997
CPU usage (%): 99.9833
Max. virtual memory (cumulated for all children) (KiB): 108124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.81796
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= 12080
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= 9
involuntary context switches= 10

runsolver used 0.014997 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node138 at 2011-04-23 19:33:10
IDJOB=3266524
IDBENCH=87811
IDSOLVER=1607
FILE ID=node138/3266524-1303579990
RUNJOBID= node138-1303579990-10392
PBS_JOBID= 13150345
Free space on /tmp= 71944 MiB

SOLVER NAME= QuteRSat 2011-03-01
BENCH NAME= SAT02/handmade/zhang-lintao/xor-chain/x1_80.shuffled.cnf
COMMAND LINE= qutersat_release BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266524-1303579990/watcher-3266524-1303579990 -o /tmp/evaluation-result-3266524-1303579990/solver-3266524-1303579990 -C 2400 -W 1300 -M 7680  qutersat_release HOME/instance-3266524-1303579990.cnf 1705367772

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

MD5SUM BENCH= 53a7d1541ad9c0dde902ec3a505ae8fc
RANDOM SEED=1705367772

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:      15429920 kB
Buffers:       2059816 kB
Cached:       14839612 kB
SwapCached:          0 kB
Active:        9727956 kB
Inactive:      7235120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15429920 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1768 kB
Writeback:           0 kB
AnonPages:       64132 kB
Mapped:          14324 kB
Slab:           492956 kB
PageTables:       5420 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   189152 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= 71912 MiB
End job on node138 at 2011-04-23 19:33:17