Trace number 2684423

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 NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1Wrong Cert. 0.242962 0.24297

General information on the benchmark

Name/OPT-BIGINT-LIN/leberre/opb-trendy/misc2010/
datasets/caixa/normalized-1093.cudf.trendy.opb
MD5SUM0f7b90ea86fe98873bdd5f48c25bdb8d
Bench CategoryOPT-BIGINT-LIN (optimisation, big integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.064989
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables1136
Total number of constraints6798
Number of constraints which are clauses6798
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint15
Number of terms in the objective function 728
Biggest coefficient in the objective function 133956
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 48760348
Number of bits of the sum of numbers in the objective function 26
Biggest number in a constraint 133956
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 48760348
Number of bits of the biggest sum of numbers26
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.06	c constraints 0/0 clauses 6105/0 units 328
0.00/0.06	c vars 1136
0.00/0.07	c objective 558 + 0
0.09/0.18	c 0.168974 15.3711 0 26
0.09/0.18	o 0
0.09/0.18	c 0.168974 15.9883 0 26
0.09/0.18	s OPTIMUM FOUND
0.09/0.18	v -x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28 -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 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Verifier Data 

FAILED
ERROR: unsatisfied constraint on line 0
	-1>=0

Falsified constraint is:
-1*x408[=1] +1*x392[=0] >= 0

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2684423-1277516141/watcher-2684423-1277516141 -o /tmp/evaluation-result-2684423-1277516141/solver-2684423-1277516141 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684423-1277516141.opb 

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): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.28 1.10 1.02 3/106 981
/proc/meminfo: memFree=1811592/2059040 swapFree=4135556/4192956
[pid=981] ppid=979 vsize=2208 CPUtime=0
/proc/981/stat : 981 (pbct) R 979 981 32179 0 -1 4202496 266 0 0 0 0 0 0 0 20 0 1 0 127218102 2260992 188 1992294400 134512640 136485738 4290858720 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/981/statm: 552 188 156 482 0 68 0

[startup+0.0950561 s]
/proc/loadavg: 1.28 1.10 1.02 3/106 981
/proc/meminfo: memFree=1811592/2059040 swapFree=4135556/4192956
[pid=981] ppid=979 vsize=5808 CPUtime=0.08
/proc/981/stat : 981 (pbct) R 979 981 32179 0 -1 4202496 1129 0 0 0 8 0 0 0 20 0 1 0 127218102 5947392 1051 1992294400 134512640 136485738 4290858720 18446744073709551615 134726717 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/981/statm: 1452 1052 194 482 0 968 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5808

[startup+0.101055 s]
/proc/loadavg: 1.28 1.10 1.02 3/106 981
/proc/meminfo: memFree=1811592/2059040 swapFree=4135556/4192956
[pid=981] ppid=979 vsize=6440 CPUtime=0.09
/proc/981/stat : 981 (pbct) R 979 981 32179 0 -1 4202496 1278 0 0 0 9 0 0 0 20 0 1 0 127218102 6594560 1200 1992294400 134512640 136485738 4290858720 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/981/statm: 1610 1201 194 482 0 1126 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6440

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

[startup+0.201067 s]
/proc/loadavg: 1.28 1.10 1.02 3/106 981
/proc/meminfo: memFree=1811592/2059040 swapFree=4135556/4192956
[pid=981] ppid=979 vsize=15388 CPUtime=0.19
/proc/981/stat : 981 (pbct) R 979 981 32179 0 -1 4202496 3762 0 0 0 18 1 0 0 20 0 1 0 127218102 15757312 3447 1992294400 134512640 136485738 4290858720 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/981/statm: 3847 3447 247 482 0 3363 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 15388

Child status: 0
Real time (s): 0.24297
CPU time (s): 0.242962
CPU user time (s): 0.223965
CPU system time (s): 0.018997
CPU usage (%): 99.9967
Max. virtual memory (cumulated for all children) (KiB): 15388

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.223965
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3763
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= 1
involuntary context switches= 1

runsolver used 0.000999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node001 at 2010-06-26 03:35:41
IDJOB=2684423
IDBENCH=72422
IDSOLVER=1170
FILE ID=node001/2684423-1277516141
PBS_JOBID= 11190640
Free space on /tmp= 62440 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-BIGINT-LIN/leberre/opb-trendy/misc2010/datasets/caixa/normalized-1093.cudf.trendy.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684423-1277516141/watcher-2684423-1277516141 -o /tmp/evaluation-result-2684423-1277516141/solver-2684423-1277516141 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684423-1277516141.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0f7b90ea86fe98873bdd5f48c25bdb8d
RANDOM SEED=1605017493

node001.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	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.202
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.40
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.202
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1811996 kB
Buffers:         35796 kB
Cached:         112812 kB
SwapCached:       9820 kB
Active:          43540 kB
Inactive:       118208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1811996 kB
SwapTotal:     4192956 kB
SwapFree:      4135556 kB
Dirty:            2388 kB
Writeback:           0 kB
AnonPages:       11620 kB
Mapped:           8420 kB
Slab:            63240 kB
PageTables:       4248 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183088 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62440 MiB
End job on node001 at 2010-06-26 03:35:41