Trace number 3493410

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
PicoMUS 941UNSAT 1.83072 1.8332

General information on the benchmark

Namemus/marques-silva/
hardware-verification/c6n_s.cnf
MD5SUM7675cef6417cea637105c651c6606ac3
Bench CategoryMUS (MUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.05699
Satisfiable
(Un)Satisfiability was proved
Number of variables2747
Number of clauses7864
Sum of the clauses size18348
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 25242
Number of clauses of size 32621
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 [picomus] WARNING: no output file given
0.00/0.00	c [picomus] p cnf 2747 7864
0.00/0.01	s UNSATISFIABLE
0.00/0.01	c [picomus] extracted core 1 of size 550 out of 7864 (7%) after 0.0 sec
0.00/0.02	c [picomus] extracted core 2 of size 550 out of 7864 (7%) after 0.0 sec
0.00/0.02	c [picomus] extracted core 3 of size 550 out of 7864 (7%) after 0.0 sec
0.00/0.02	c [picomus] extracted core 4 of size 550 out of 7864 (7%) after 0.0 sec
0.00/0.02	c [picomus] extracted core 5 of size 550 out of 7864 (7%) after 0.0 sec
0.00/0.03	c [picomus] extracted core 6 of size 550 out of 7864 (7%) after 0.0 sec
0.00/0.03	c [picomus] extracted core 7 of size 550 out of 7864 (7%) after 0.0 sec
0.00/0.03	c [picomus] extracted core 8 of size 550 out of 7864 (7%) after 0.0 sec
0.00/0.04	c [picomus] reduction 1 to 520 out of 7864 (7%) after 0.0 sec
0.29/0.31	c [picomus] reduction 2 to 516 out of 7864 (7%) after 0.3 sec
0.29/0.31	c [picomus] reduction 3 to 513 out of 7864 (7%) after 0.3 sec
1.79/1.83	c [picosat] 517 calls
1.79/1.83	c [picosat] 0 iterations
1.79/1.83	c [picosat] 0 restarts
1.79/1.83	c [picosat] 0 failed literals
1.79/1.83	c [picosat] 107 conflicts
1.79/1.83	c [picosat] 5338711 decisions
1.79/1.83	c [picosat] 521 fixed variables
1.79/1.83	c [picosat] 15976 learned literals
1.79/1.83	c [picosat] 0.7% deleted literals
1.79/1.83	c [picosat] 5488332 propagations
1.79/1.83	c [picosat] 7.8% variables used
1.79/1.83	c [picosat] 1.4 seconds in library
1.79/1.83	c [picosat] 4.0 megaprops/second
1.79/1.83	c [picosat] probing 0.0 seconds 4%
1.79/1.83	c [picosat] 27 simplifications
1.79/1.83	c [picosat] 0 reductions
1.79/1.83	c [picosat] 0.0 MB recycled
1.79/1.83	c [picosat] 0.9 MB maximally allocated
1.79/1.83	c [picomus] found 7351 redundant clauses 93%
1.79/1.83	c [picomus] computed MUS of size 513 out of 7864 (7%)
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1.79/1.83	v 7824
1.79/1.83	v 7827
1.79/1.83	v 7830
1.79/1.83	v 7831
1.79/1.83	v 7832
1.79/1.83	v 7836
1.79/1.83	v 7839
1.79/1.83	v 7842
1.79/1.83	v 7845
1.79/1.83	v 7848
1.79/1.83	v 7851
1.79/1.83	v 7854
1.79/1.83	v 7857
1.79/1.83	v 7860
1.79/1.83	v 7863
1.79/1.83	v 7864
1.79/1.83	v 0
1.79/1.83	c [picomus] computed 513 irredundant clauses 7%
1.79/1.83	c [picomus] 3 reductions in 1.8 seconds

Verifier Data 

OK	513

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 988)

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-3493410-1307798937/watcher-3493410-1307798937 -o /tmp/evaluation-result-3493410-1307798937/solver-3493410-1307798937 -C 1800 -W 1850 -M 7680 picomus HOME/instance-3493410-1307798937.cnf 

running on 2 cores: 0,2

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1850 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: 3.64 1.53 0.75 4/189 20151
/proc/meminfo: memFree=31346616/32951124 swapFree=67056964/67111528
[pid=20151] ppid=20149 vsize=1472 CPUtime=0 cores=0,2
/proc/20151/stat : 20151 (picomus) R 20149 20151 19995 0 -1 4202496 318 0 0 0 0 0 0 0 25 0 1 0 872309585 1507328 272 33554432000 134512640 135072097 4293949264 18446744073709551615 134536711 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20151/statm: 368 272 67 137 0 229 0

[startup+0.00754603 s]
/proc/loadavg: 3.64 1.53 0.75 4/189 20151
/proc/meminfo: memFree=31346616/32951124 swapFree=67056964/67111528
[pid=20151] ppid=20149 vsize=1472 CPUtime=0 cores=0,2
/proc/20151/stat : 20151 (picomus) R 20149 20151 19995 0 -1 4202496 318 0 0 0 0 0 0 0 25 0 1 0 872309585 1507328 272 33554432000 134512640 135072097 4293949264 18446744073709551615 134574748 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20151/statm: 368 272 67 137 0 229 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1472

[startup+0.100548 s]
/proc/loadavg: 3.64 1.53 0.75 4/189 20151
/proc/meminfo: memFree=31346616/32951124 swapFree=67056964/67111528
[pid=20151] ppid=20149 vsize=2148 CPUtime=0.09 cores=0,2
/proc/20151/stat : 20151 (picomus) R 20149 20151 19995 0 -1 4202496 749 0 0 0 9 0 0 0 25 0 1 0 872309585 2199552 418 33554432000 134512640 135072097 4293949264 18446744073709551615 134583982 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20151/statm: 537 418 77 137 0 398 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2148

[startup+0.300512 s]
/proc/loadavg: 3.64 1.53 0.75 4/189 20151
/proc/meminfo: memFree=31346616/32951124 swapFree=67056964/67111528
[pid=20151] ppid=20149 vsize=2148 CPUtime=0.29 cores=0,2
/proc/20151/stat : 20151 (picomus) R 20149 20151 19995 0 -1 4202496 749 0 0 0 29 0 0 0 25 0 1 0 872309585 2199552 418 33554432000 134512640 135072097 4293949264 18446744073709551615 134583982 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20151/statm: 537 418 77 137 0 398 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2148

[startup+0.700444 s]
/proc/loadavg: 3.64 1.53 0.75 4/189 20151
/proc/meminfo: memFree=31346616/32951124 swapFree=67056964/67111528
[pid=20151] ppid=20149 vsize=2148 CPUtime=0.69 cores=0,2
/proc/20151/stat : 20151 (picomus) R 20149 20151 19995 0 -1 4202496 749 0 0 0 69 0 0 0 25 0 1 0 872309585 2199552 418 33554432000 134512640 135072097 4293949264 18446744073709551615 134518232 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20151/statm: 537 418 77 137 0 398 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2148

[startup+1.50031 s]
/proc/loadavg: 3.64 1.53 0.75 5/190 20152
/proc/meminfo: memFree=31345280/32951124 swapFree=67056964/67111528
[pid=20151] ppid=20149 vsize=2148 CPUtime=1.49 cores=0,2
/proc/20151/stat : 20151 (picomus) R 20149 20151 19995 0 -1 4202496 749 0 0 0 149 0 0 0 25 0 1 0 872309585 2199552 418 33554432000 134512640 135072097 4293949264 18446744073709551615 134584017 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20151/statm: 537 418 77 137 0 398 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2148

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

[startup+1.70026 s]
/proc/loadavg: 3.64 1.53 0.75 5/190 20152
/proc/meminfo: memFree=31345280/32951124 swapFree=67056964/67111528
[pid=20151] ppid=20149 vsize=2148 CPUtime=1.69 cores=0,2
/proc/20151/stat : 20151 (picomus) R 20149 20151 19995 0 -1 4202496 749 0 0 0 169 0 0 0 25 0 1 0 872309585 2199552 418 33554432000 134512640 135072097 4293949264 18446744073709551615 134518160 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20151/statm: 537 418 77 137 0 398 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 2148

[startup+1.80025 s]
/proc/loadavg: 3.64 1.53 0.75 5/190 20152
/proc/meminfo: memFree=31345280/32951124 swapFree=67056964/67111528
[pid=20151] ppid=20149 vsize=2148 CPUtime=1.79 cores=0,2
/proc/20151/stat : 20151 (picomus) R 20149 20151 19995 0 -1 4202496 749 0 0 0 179 0 0 0 25 0 1 0 872309585 2199552 418 33554432000 134512640 135072097 4293949264 18446744073709551615 134585031 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/20151/statm: 537 418 77 137 0 398 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 2148

Child status: 20
Real time (s): 1.8332
CPU time (s): 1.83072
CPU user time (s): 1.82972
CPU system time (s): 0.000999
CPU usage (%): 99.865
Max. virtual memory (cumulated for all children) (KiB): 2148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.82972
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 750
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= 2
involuntary context switches= 7

runsolver used 0.001999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node145 at 2011-06-11 15:28:57
IDJOB=3493410
IDBENCH=89492
IDSOLVER=1974
FILE ID=node145/3493410-1307798937
RUNJOBID= node145-1307798794-20013
PBS_JOBID= 13551003
Free space on /tmp= 74088 MiB

SOLVER NAME= PicoMUS 941
BENCH NAME= SAT11/mus/marques-silva/hardware-verification/c6n_s.cnf
COMMAND LINE= picomus BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3493410-1307798937/watcher-3493410-1307798937 -o /tmp/evaluation-result-3493410-1307798937/solver-3493410-1307798937 -C 1800 -W 1850 -M 7680  picomus HOME/instance-3493410-1307798937.cnf

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 7675cef6417cea637105c651c6606ac3
RANDOM SEED=1858189495

node145.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		: 2666.786
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	: 5333.57
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		: 2666.786
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	: 5332.76
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		: 2666.786
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	: 5332.74
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		: 2666.786
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	: 5332.83
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		: 2666.786
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	: 5332.82
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		: 2666.786
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	: 5332.74
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		: 2666.786
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	: 5332.84
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		: 2666.786
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	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      31347392 kB
Buffers:        169768 kB
Cached:         752652 kB
SwapCached:       7976 kB
Active:         868612 kB
Inactive:       589704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      31347392 kB
SwapTotal:    67111528 kB
SwapFree:     67056964 kB
Dirty:            6608 kB
Writeback:           0 kB
AnonPages:      533312 kB
Mapped:          14476 kB
Slab:            79108 kB
PageTables:       6320 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   770832 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 node145 at 2011-06-11 15:28:59