Trace number 3266568

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 2.5956 2.59495

General information on the benchmark

NameSAT02/handmade/zhang-lintao/
xor-chain/x1_40.shuffled.cnf
MD5SUM15f5068fb216bf26d5385140ce74faaf
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.000999
Satisfiable
(Un)Satisfiability was proved
Number of variables118
Number of clauses314
Sum of the clauses size940
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22
Number of clauses of size 3312
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c Set FPU double precision.
0.00/0.01	c Parse Cnf success: #var: 118 #clause: 314
0.00/0.01	c Find Units :          0
0.00/0.01	c Find Invs  :          1
0.00/0.01	c Find Ands  :          0 AvgFaninNum: nan
0.00/0.01	c Find Xors  :         78 AvgFaninNum: 2
0.00/0.01	c Find Ite   :          4
0.00/0.01	c UnDirect variable: 114
0.00/0.01	c UnDirect to Direct Gate: 46
0.00/0.01	c Forced Direct Gate: 34 Unuse unDirect Gate: 67
0.00/0.01	c Break Cycle : 3
0.00/0.01	c Total Root : 11 Undef Var: 73
0.00/0.01	c After covering, Total Root: 12 Leaf: 47
0.00/0.01	c Variable( cover/uncovered/unused ): 92 26 0
0.00/0.01	c Unit Clauses: 0
0.00/0.01	c Binary Clauses( cover/uncovered ): 2 0
0.00/0.01	c Clauses( cover/uncovered ): 176 136
0.00/0.01	c Total Clauses( cover/uncovered ): 178 136 56.6879%
0.00/0.01	c Covered Ands: 0 Invs: 1 Xors: 43 Ites: 1
0.00/0.01	c Uncover Clauses avg size: 3 max size: 3
0.00/0.01	c Final circuit: i/l/o/s      73       0     136       404
0.00/0.01	c CnfToAig: Time: 0 s
0.00/0.01	c TmMap: Set choices finish.
0.00/0.01	c TmMap: Set big and: 136
0.00/0.01	c TmMap: Origin: 478 ClauseNum: 1212 --> New: 253 ClauseNum: 716
0.00/0.01	c TmMap: Time: 0
0.00/0.02	c Simulation --> TransNum: 716/716 Try to Add: #clause: 272 #xorclause: 43
0.00/0.02	c #var: 116 #clauses: 137 Solving... 
2.49/2.58	s UNSATISFIABLE
2.49/2.59	c CPU time: 2.58 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-3266568-1303579990/watcher-3266568-1303579990 -o /tmp/evaluation-result-3266568-1303579990/solver-3266568-1303579990 -C 2400 -W 1300 -M 7680 qutersat_release HOME/instance-3266568-1303579990.cnf 1705367772 

running on 2 cores: 1,3

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 2/179 10414
/proc/meminfo: memFree=15415944/32951124 swapFree=67111528/67111528
[pid=10414] ppid=10412 vsize=32364 CPUtime=0 cores=1,3
/proc/10414/stat : 10414 (qutersat_releas) R 10412 10414 10374 0 -1 4202496 1810 0 0 0 0 0 0 0 25 0 1 0 469597017 33140736 1744 33554432000 4194304 6016207 140735954699776 18446744073709551615 4779602 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/10414/statm: 8091 1746 410 445 0 1635 0

[startup+0.069368 s]
/proc/loadavg: 2.94 3.76 3.86 2/179 10414
/proc/meminfo: memFree=15415944/32951124 swapFree=67111528/67111528
[pid=10414] ppid=10412 vsize=54032 CPUtime=0.06 cores=1,3
/proc/10414/stat : 10414 (qutersat_releas) R 10412 10414 10374 0 -1 4202496 3615 0 0 0 6 0 0 0 25 0 1 0 469597017 55328768 3549 33554432000 4194304 6016207 140735954699776 18446744073709551615 4425473 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/10414/statm: 13508 3549 716 445 0 7052 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 54032

[startup+0.100363 s]
/proc/loadavg: 2.94 3.76 3.86 2/179 10414
/proc/meminfo: memFree=15415944/32951124 swapFree=67111528/67111528
[pid=10414] ppid=10412 vsize=54032 CPUtime=0.09 cores=1,3
/proc/10414/stat : 10414 (qutersat_releas) R 10412 10414 10374 0 -1 4202496 3701 0 0 0 9 0 0 0 25 0 1 0 469597017 55328768 3635 33554432000 4194304 6016207 140735954699776 18446744073709551615 4371148 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/10414/statm: 13508 3635 716 445 0 7052 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 54032

[startup+0.300326 s]
/proc/loadavg: 2.94 3.76 3.86 2/179 10414
/proc/meminfo: memFree=15415944/32951124 swapFree=67111528/67111528
[pid=10414] ppid=10412 vsize=79556 CPUtime=0.29 cores=1,3
/proc/10414/stat : 10414 (qutersat_releas) R 10412 10414 10374 0 -1 4202496 4215 0 0 0 29 0 0 0 25 0 1 0 469597017 81465344 4149 33554432000 4194304 6016207 140735954699776 18446744073709551615 4425476 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/10414/statm: 19889 4149 721 445 0 13433 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 79556

[startup+0.700268 s]
/proc/loadavg: 2.94 3.76 3.86 2/179 10414
/proc/meminfo: memFree=15415944/32951124 swapFree=67111528/67111528
[pid=10414] ppid=10412 vsize=96828 CPUtime=0.69 cores=1,3
/proc/10414/stat : 10414 (qutersat_releas) R 10412 10414 10374 0 -1 4202496 4883 0 0 0 69 0 0 0 25 0 1 0 469597017 99151872 4817 33554432000 4194304 6016207 140735954699776 18446744073709551615 228122410641 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/10414/statm: 24207 4817 733 445 0 17751 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 96828

[startup+1.50111 s]
/proc/loadavg: 3.02 3.76 3.86 5/190 10435
/proc/meminfo: memFree=15309636/32951124 swapFree=67111528/67111528
[pid=10414] ppid=10412 vsize=105628 CPUtime=1.49 cores=1,3
/proc/10414/stat : 10414 (qutersat_releas) R 10412 10414 10374 0 -1 4202496 5701 0 0 0 149 0 0 0 25 0 1 0 469597017 108163072 5635 33554432000 4194304 6016207 140735954699776 18446744073709551615 4425459 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/10414/statm: 26407 5635 733 445 0 19951 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 105628

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

[startup+2.30096 s]
/proc/loadavg: 3.02 3.76 3.86 5/187 10456
/proc/meminfo: memFree=15300284/32951124 swapFree=67111528/67111528
[pid=10414] ppid=10412 vsize=105628 CPUtime=2.29 cores=1,3
/proc/10414/stat : 10414 (qutersat_releas) R 10412 10414 10374 0 -1 4202496 6250 0 0 0 229 0 0 0 25 0 1 0 469597017 108163072 6184 33554432000 4194304 6016207 140735954699776 18446744073709551615 4371192 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/10414/statm: 26407 6184 733 445 0 19951 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 105628

[startup+2.50094 s]
/proc/loadavg: 3.02 3.76 3.86 5/187 10456
/proc/meminfo: memFree=15300284/32951124 swapFree=67111528/67111528
[pid=10414] ppid=10412 vsize=114824 CPUtime=2.49 cores=1,3
/proc/10414/stat : 10414 (qutersat_releas) R 10412 10414 10374 0 -1 4202496 6253 0 0 0 249 0 0 0 25 0 1 0 469597017 117579776 6187 33554432000 4194304 6016207 140735954699776 18446744073709551615 4425659 0 0 4096 16386 0 0 0 17 1 0 0 0
/proc/10414/statm: 28706 6187 733 445 0 22250 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 114824

Child status: 0
Real time (s): 2.59495
CPU time (s): 2.5956
CPU user time (s): 2.58461
CPU system time (s): 0.010998
CPU usage (%): 100.025
Max. virtual memory (cumulated for all children) (KiB): 114824

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.58461
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6330
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= 5

runsolver used 0.002999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node138 at 2011-04-23 19:33:10
IDJOB=3266568
IDBENCH=87817
IDSOLVER=1607
FILE ID=node138/3266568-1303579990
RUNJOBID= node138-1303579990-10394
PBS_JOBID= 13150345
Free space on /tmp= 71940 MiB

SOLVER NAME= QuteRSat 2011-03-01
BENCH NAME= SAT02/handmade/zhang-lintao/xor-chain/x1_40.shuffled.cnf
COMMAND LINE= qutersat_release BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266568-1303579990/watcher-3266568-1303579990 -o /tmp/evaluation-result-3266568-1303579990/solver-3266568-1303579990 -C 2400 -W 1300 -M 7680  qutersat_release HOME/instance-3266568-1303579990.cnf 1705367772

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

MD5SUM BENCH= 15f5068fb216bf26d5385140ce74faaf
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:      15416480 kB
Buffers:       2059824 kB
Cached:       14841544 kB
SwapCached:          0 kB
Active:        9741300 kB
Inactive:      7235132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15416480 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            3708 kB
Writeback:           0 kB
AnonPages:       74608 kB
Mapped:          16652 kB
Slab:           492956 kB
PageTables:       5420 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   230432 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= 71920 MiB
End job on node138 at 2011-04-23 19:33:13