Trace number 3427131

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
sattime 2011-03-02SAT 1.77373 1.77362

General information on the benchmark

Namecrafted/spence/sgen/
sgen3-n160-s40283905-sat.cnf
MD5SUM8e3c134eb643f2d9a45c884774c054a8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.186971
Satisfiable
(Un)Satisfiability was proved
Number of variables160
Number of clauses384
Sum of the clauses size960
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2320
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 564
Number of clauses of size over 50

Solver Data 

1.70/1.77	c 0 clauses are redundant and removed
1.70/1.77	c 0 vars are fixed and 0 clauses are removed after unit propagation
1.70/1.77	c 0 vars are fixed and 0 clauses are removed after lookahead
1.70/1.77	c initial seed is 1183519742
1.70/1.77	c try=1 flip j=7001037 walk=5984498 seed 1183519759
1.70/1.77	c A solution is found
1.70/1.77	s SATISFIABLE
1.70/1.77	v 1 -2 -3 -4 5 6 7 -8 9 -10 11 12 13 -14 -15 16 -17 -18 19 -20 -21 22 23 -24 25 26 27 -28 29 30 31 -32 -33 -34 -35 36 -37 38 39 -40 41 -42 43 -44 45 -46 47 48 49 -50 51 52 53 54 -55 56 57 -58 -59 60 61 -62 -63 64 65 -66 67 -68 69 70 -71 72 73 -74 75 -76 -77 -78 79 -80 81 -82 -83 84 -85 -86 -87 -88 89 -90 -91 -92 -93 94 95 96 97 98 -99 100 101 -102 -103 104 -105 -106 -107 -108 109 110 111 112 -113 -114 -115 116 -117 118 -119 -120 -121 -122 123 124 -125 -126 -127 -128 -129 130 131 132 -133 -134 -135 136 137 -138 139 140 -141 -142 -143 -144 -145 -146 -147 148 -149 -150 151 -152 -153 -154 -155 156 -157 -158 159 160 
1.70/1.77	v 0 
1.70/1.77	c Done (mycputime is 1 seconds)

Verifier Data 

OK

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-3427131-1306761787/watcher-3427131-1306761787 -o /tmp/evaluation-result-3427131-1306761787/solver-3427131-1306761787 -C 5000 -W 5100 -M 15500 sattime HOME/instance-3427131-1306761787.cnf 1183519742 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.37 0.08 0.23 2/498 5813
/proc/meminfo: memFree=8595928/32951124 swapFree=53876548/67111528
[pid=5813] ppid=5811 vsize=990140 CPUtime=0 cores=1,3,5,7
/proc/5813/stat : 5813 (sattime) R 5811 5813 5694 0 -1 4202496 250 0 0 0 0 0 0 0 25 0 1 0 787779679 1013903360 192 33554432000 4194304 4228548 140735567029680 18446744073709551615 4217212 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5813/statm: 247535 192 116 9 0 244692 0

[startup+0.0307271 s]
/proc/loadavg: 0.37 0.08 0.23 2/498 5813
/proc/meminfo: memFree=8595928/32951124 swapFree=53876548/67111528
[pid=5813] ppid=5811 vsize=990140 CPUtime=0.03 cores=1,3,5,7
/proc/5813/stat : 5813 (sattime) R 5811 5813 5694 0 -1 4202496 250 0 0 0 3 0 0 0 25 0 1 0 787779679 1013903360 192 33554432000 4194304 4228548 140735567029680 18446744073709551615 4218402 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5813/statm: 247535 192 116 9 0 244692 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 990140

[startup+0.100714 s]
/proc/loadavg: 0.37 0.08 0.23 2/498 5813
/proc/meminfo: memFree=8595928/32951124 swapFree=53876548/67111528
[pid=5813] ppid=5811 vsize=990140 CPUtime=0.1 cores=1,3,5,7
/proc/5813/stat : 5813 (sattime) R 5811 5813 5694 0 -1 4202496 250 0 0 0 10 0 0 0 25 0 1 0 787779679 1013903360 192 33554432000 4194304 4228548 140735567029680 18446744073709551615 4218481 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5813/statm: 247535 192 116 9 0 244692 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 990140

[startup+0.300681 s]
/proc/loadavg: 0.37 0.08 0.23 2/498 5813
/proc/meminfo: memFree=8595928/32951124 swapFree=53876548/67111528
[pid=5813] ppid=5811 vsize=990140 CPUtime=0.3 cores=1,3,5,7
/proc/5813/stat : 5813 (sattime) R 5811 5813 5694 0 -1 4202496 250 0 0 0 30 0 0 0 25 0 1 0 787779679 1013903360 192 33554432000 4194304 4228548 140735567029680 18446744073709551615 4216869 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5813/statm: 247535 192 116 9 0 244692 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 990140

[startup+0.700606 s]
/proc/loadavg: 0.37 0.08 0.23 2/498 5813
/proc/meminfo: memFree=8595928/32951124 swapFree=53876548/67111528
[pid=5813] ppid=5811 vsize=990140 CPUtime=0.7 cores=1,3,5,7
/proc/5813/stat : 5813 (sattime) R 5811 5813 5694 0 -1 4202496 250 0 0 0 70 0 0 0 25 0 1 0 787779679 1013903360 192 33554432000 4194304 4228548 140735567029680 18446744073709551615 4217167 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5813/statm: 247535 192 116 9 0 244692 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 990140

[startup+1.50047 s]
/proc/loadavg: 0.37 0.08 0.23 3/499 5814
/proc/meminfo: memFree=8594812/32951124 swapFree=53876548/67111528
[pid=5813] ppid=5811 vsize=990140 CPUtime=1.5 cores=1,3,5,7
/proc/5813/stat : 5813 (sattime) R 5811 5813 5694 0 -1 4202496 250 0 0 0 150 0 0 0 25 0 1 0 787779679 1013903360 192 33554432000 4194304 4228548 140735567029680 18446744073709551615 4217193 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5813/statm: 247535 192 116 9 0 244692 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 990140

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

[startup+1.70043 s]
/proc/loadavg: 0.37 0.08 0.23 3/499 5814
/proc/meminfo: memFree=8594812/32951124 swapFree=53876548/67111528
[pid=5813] ppid=5811 vsize=990140 CPUtime=1.7 cores=1,3,5,7
/proc/5813/stat : 5813 (sattime) R 5811 5813 5694 0 -1 4202496 250 0 0 0 170 0 0 0 25 0 1 0 787779679 1013903360 192 33554432000 4194304 4228548 140735567029680 18446744073709551615 4217167 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5813/statm: 247535 192 116 9 0 244692 0
Current children cumulated CPU time (s) 1.7
Current children cumulated vsize (KiB) 990140

Child status: 10
Real time (s): 1.77362
CPU time (s): 1.77373
CPU user time (s): 1.77373
CPU system time (s): 0
CPU usage (%): 100.006
Max. virtual memory (cumulated for all children) (KiB): 990140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.77373
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 254
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= 4

runsolver used 0.008998 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node108 at 2011-05-30 15:23:07
IDJOB=3427131
IDBENCH=83138
IDSOLVER=1923
FILE ID=node108/3427131-1306761787
RUNJOBID= node108-1306761773-5713
PBS_JOBID= 13475016
Free space on /tmp= 56336 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/crafted/spence/sgen/sgen3-n160-s40283905-sat.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427131-1306761787/watcher-3427131-1306761787 -o /tmp/evaluation-result-3427131-1306761787/solver-3427131-1306761787 -C 5000 -W 5100 -M 15500  sattime HOME/instance-3427131-1306761787.cnf 1183519742

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 8e3c134eb643f2d9a45c884774c054a8
RANDOM SEED=1183519742

node108.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		: 2666.820
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	: 5333.64
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		: 2666.820
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	: 5226.15
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		: 2666.820
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		: 2666.820
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	: 5332.77
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.75
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		: 2666.820
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:       8596332 kB
Buffers:        269832 kB
Cached:       22302992 kB
SwapCached:      16500 kB
Active:       19270736 kB
Inactive:      4351280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       8596332 kB
SwapTotal:    67111528 kB
SwapFree:     53876548 kB
Dirty:           19992 kB
Writeback:           0 kB
AnonPages:     1043432 kB
Mapped:          12696 kB
Slab:           598724 kB
PageTables:      65608 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 135581956 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= 56328 MiB
End job on node108 at 2011-05-30 15:23:09