Trace number 3287293

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
MPhaseSAT 2011-02-15UNSAT 0.920859 1.00748

General information on the benchmark

Nameapplication/jarvisalo/smtqfbv-aigs/
smtlib-qfbv-aigs-ext_con_032_008_0256-tseitin.cnf
MD5SUMee9a3768141236efcc4a858e8f92a7e9
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.353945
Satisfiable
(Un)Satisfiability was proved
Number of variables27224
Number of clauses68879
Sum of the clauses size160715
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 245918
Number of clauses of size 322959
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.81/1.00	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.81/1.00	c input CNF file=HOME/instance-3287293-1307634582.cnf 
0.81/1.00	c Clause#=68879  var#=27224  ratio=2 
0.81/1.00	c Simplified clause#=68715 
0.81/1.00	c inative var#=0 
0.81/1.00	c old elimination clauses #=137421 
0.81/1.00	c free var#=9575  
0.81/1.00	c 
0.81/1.00	s UNSATISFIABLE
0.81/1.00	c 
0.81/1.00	c  Running time=0.917861

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: 977)

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-3287293-1307634582/watcher-3287293-1307634582 -o /tmp/evaluation-result-3287293-1307634582/solver-3287293-1307634582 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3287293-1307634582.cnf 

running on 2 cores: 5,7

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: 3.85 3.93 3.00 5/180 4768
/proc/meminfo: memFree=32238100/32951124 swapFree=67051732/67111528
[pid=4768] ppid=4766 vsize=11796 CPUtime=0 cores=5,7
/proc/4768/stat : 4768 (runsolver) D 4766 4768 4447 0 -1 4202560 46 0 0 0 0 0 0 0 23 0 1 0 875056163 12079104 53 33554432000 4194304 5432328 140733277183472 18446744073709551615 5055479 0 0 4096 24578 18446744071562154983 0 0 17 5 0 0 0
/proc/4768/statm: 2949 53 34 303 0 2643 0

[startup+0.035119 s]
/proc/loadavg: 3.85 3.93 3.00 5/180 4768
/proc/meminfo: memFree=32238100/32951124 swapFree=67051732/67111528
[pid=4768] ppid=4766 vsize=1372 CPUtime=0 cores=5,7
/proc/4768/stat : 4768 (MPhaseSAT) D 4766 4768 4447 0 -1 4194304 81 0 3 0 0 0 0 0 23 0 1 0 875056163 1404928 38 33554432000 134512640 134731564 4294823264 18446744073709551615 3789396 0 0 4096 0 18446744071562154983 0 0 17 5 0 0 3
/proc/4768/statm: 343 38 30 54 0 30 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1372

[startup+0.101105 s]
/proc/loadavg: 3.85 3.93 3.00 5/180 4768
/proc/meminfo: memFree=32238100/32951124 swapFree=67051732/67111528
[pid=4768] ppid=4766 vsize=4928 CPUtime=0.01 cores=5,7
/proc/4768/stat : 4768 (MPhaseSAT) R 4766 4768 4447 0 -1 4202496 370 0 17 0 1 0 0 0 23 0 1 0 875056163 5046272 328 33554432000 134512640 134731564 4294823264 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 5 0 0 8
/proc/4768/statm: 1232 328 225 54 0 542 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4928

[startup+0.301073 s]
/proc/loadavg: 3.85 3.93 3.00 5/180 4768
/proc/meminfo: memFree=32238100/32951124 swapFree=67051732/67111528
[pid=4768] ppid=4766 vsize=19800 CPUtime=0.2 cores=5,7
/proc/4768/stat : 4768 (MPhaseSAT) R 4766 4768 4447 0 -1 4202496 7686 0 17 0 20 0 0 0 23 0 1 0 875056163 20275200 4360 33554432000 134512640 134731564 4294823264 18446744073709551615 4261372 0 0 4096 1026 0 0 0 17 5 0 0 8
/proc/4768/statm: 4950 4361 254 54 0 4260 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 19800

[startup+0.701004 s]
/proc/loadavg: 3.85 3.93 3.00 5/180 4768
/proc/meminfo: memFree=32238100/32951124 swapFree=67051732/67111528
[pid=4768] ppid=4766 vsize=26108 CPUtime=0.61 cores=5,7
/proc/4768/stat : 4768 (MPhaseSAT) R 4766 4768 4447 0 -1 4202496 9939 0 17 0 60 1 0 0 25 0 1 0 875056163 26734592 5927 33554432000 134512640 134731564 4294823264 18446744073709551615 134718142 0 0 4096 1026 0 0 0 17 5 0 0 8
/proc/4768/statm: 6527 5927 262 54 0 5837 0
Current children cumulated CPU time (s) 0.61
Current children cumulated vsize (KiB) 26108

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

[startup+0.900966 s]
/proc/loadavg: 3.85 3.93 3.00 5/180 4768
/proc/meminfo: memFree=32238100/32951124 swapFree=67051732/67111528
[pid=4768] ppid=4766 vsize=29184 CPUtime=0.81 cores=5,7
/proc/4768/stat : 4768 (MPhaseSAT) R 4766 4768 4447 0 -1 4202496 10756 0 17 0 80 1 0 0 25 0 1 0 875056163 29884416 6615 33554432000 134512640 134731564 4294823264 18446744073709551615 134727917 0 0 4096 1026 0 0 0 17 5 0 0 8
/proc/4768/statm: 7296 6615 266 54 0 6606 0
Current children cumulated CPU time (s) 0.81
Current children cumulated vsize (KiB) 29184

[startup+1.00095 s]
/proc/loadavg: 3.85 3.93 3.00 5/190 4799
/proc/meminfo: memFree=32059556/32951124 swapFree=67051732/67111528
[pid=4768] ppid=4766 vsize=0 CPUtime=0.91 cores=5,7
/proc/4768/stat : 4768 (MPhaseSAT) Z 4766 4768 4447 0 -1 4202524 11159 0 18 0 90 1 0 0 25 0 1 0 875056163 0 0 33554432000 0 0 0 0 0 0 0 4096 1026 18446744073709551615 0 0 17 5 0 0 8
/proc/4768/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.91
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 1.00748
CPU time (s): 0.920859
CPU user time (s): 0.905862
CPU system time (s): 0.014997
CPU usage (%): 91.4018
Max. virtual memory (cumulated for all children) (KiB): 29184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.905862
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= 11159
page faults= 18
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 49
involuntary context switches= 35

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node138 at 2011-06-09 17:49:42
IDJOB=3287293
IDBENCH=82463
IDSOLVER=1520
FILE ID=node138/3287293-1307634582
RUNJOBID= node138-1307634582-4743
PBS_JOBID= 13549354
Free space on /tmp= 74104 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/application/jarvisalo/smtqfbv-aigs/smtlib-qfbv-aigs-ext_con_032_008_0256-tseitin.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3287293-1307634582/watcher-3287293-1307634582 -o /tmp/evaluation-result-3287293-1307634582/solver-3287293-1307634582 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3287293-1307634582.cnf

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

MD5SUM BENCH= ee9a3768141236efcc4a858e8f92a7e9
RANDOM SEED=1733565366

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:      32239992 kB
Buffers:        188164 kB
Cached:         303920 kB
SwapCached:      13344 kB
Active:         306656 kB
Inactive:       214300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      32239992 kB
SwapTotal:    67111528 kB
SwapFree:     67051732 kB
Dirty:            7152 kB
Writeback:           0 kB
AnonPages:       26768 kB
Mapped:           8812 kB
Slab:           124928 kB
PageTables:       5216 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   200656 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= 74084 MiB
End job on node138 at 2011-06-09 17:49:43